Pub Date : 2024-12-04DOI: 10.1109/LAWP.2024.3511433
Lucas Polo-López;Lisa Berretti;Esteban Menargues;Santiago Capdevila;Giovanni Toso;María García-Vigueras
A full-metal phased array, based on tri-ridge evanescent-fed choke antenna elements, providing simultaneous dual-circular polarizations is proposed in this letter. The full-metal design minimizes power losses at antenna level, reducing system complexity as compared to approaches that rely on the use of dielectric materials and require over-dimensioned arrays for comparable performance. The proposed radiating element enables very low coupling between orthogonally polarized input ports even when scanning. Therefore, this design supports wide-angle scanning in spaceborne phased arrays, while maintaining excellent active matching and active polarization isolation. The proposed concept allows the generation of two independent and simultaneous beams with orthogonal circular polarization from the same apertures. Experimental validation is provided with a $text{14 GHz}$ prototype scanning up to $pm$60$^circ$, for Ku-band low Earth orbit receive payloads.
{"title":"Dual-Polarized Spaceborne Phased Arrays Using Tri-Ridge Evanescent Waveguide Antennas","authors":"Lucas Polo-López;Lisa Berretti;Esteban Menargues;Santiago Capdevila;Giovanni Toso;María García-Vigueras","doi":"10.1109/LAWP.2024.3511433","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3511433","url":null,"abstract":"A full-metal phased array, based on tri-ridge evanescent-fed choke antenna elements, providing simultaneous dual-circular polarizations is proposed in this letter. The full-metal design minimizes power losses at antenna level, reducing system complexity as compared to approaches that rely on the use of dielectric materials and require over-dimensioned arrays for comparable performance. The proposed radiating element enables very low coupling between orthogonally polarized input ports even when scanning. Therefore, this design supports wide-angle scanning in spaceborne phased arrays, while maintaining excellent active matching and active polarization isolation. The proposed concept allows the generation of two independent and simultaneous beams with orthogonal circular polarization from the same apertures. Experimental validation is provided with a <inline-formula><tex-math>$text{14 GHz}$</tex-math></inline-formula> prototype scanning up to <inline-formula><tex-math>$pm$</tex-math></inline-formula>60<inline-formula><tex-math>$^circ$</tex-math></inline-formula>, for Ku-band low Earth orbit receive payloads.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"656-660"},"PeriodicalIF":3.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-04DOI: 10.1109/LAWP.2024.3510751
Peng Xu;Maliang Liu;Xinyao Luo;Kunyi Zhang;Ruijie Li;Hao Xue;Long Li
This letter presents a single-layer polarization-insensitive shared-aperture reflectarray (RA) operating at dual-band. First, based on the spin-decoupled strategy, and by setting the identical phase patterns individually for left-handed and right-handed circularly polarized (LHCP and RHCP) waves, thereby the polarization-insensitive operation is deduced. Then, the RA element composed of the outer K element with a concentric split ring configuration and the inner Ka element with a Malta cross configuration is designed to operate at Ka and K band, respectively. Subsequently, by considering the mutual influence between the RA elements operating at K and Ka band, 2-bit phase coding for the K element and 3-bit phase coding for the Ka element is proposed. Finally, the dual-band polarization-insensitive RA is designed, fabricated, and measured. The measured results are in good agreement with the simulated ones, realizing the similar focusing behavior under full-polarized incident waves at dual-band, and the polarization states of the generated beams are determined by the polarization states of the feed source.
{"title":"Single-Layer Polarization-Insensitive Dual-Band Reflectarray","authors":"Peng Xu;Maliang Liu;Xinyao Luo;Kunyi Zhang;Ruijie Li;Hao Xue;Long Li","doi":"10.1109/LAWP.2024.3510751","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3510751","url":null,"abstract":"This letter presents a single-layer polarization-insensitive shared-aperture reflectarray (RA) operating at dual-band. First, based on the spin-decoupled strategy, and by setting the identical phase patterns individually for left-handed and right-handed circularly polarized (LHCP and RHCP) waves, thereby the polarization-insensitive operation is deduced. Then, the RA element composed of the outer <italic>K</i> element with a concentric split ring configuration and the inner <italic>Ka</i> element with a Malta cross configuration is designed to operate at <italic>Ka</i> and <italic>K</i> band, respectively. Subsequently, by considering the mutual influence between the RA elements operating at <italic>K</i> and <italic>Ka</i> band, 2-bit phase coding for the <italic>K</i> element and 3-bit phase coding for the <italic>Ka</i> element is proposed. Finally, the dual-band polarization-insensitive RA is designed, fabricated, and measured. The measured results are in good agreement with the simulated ones, realizing the similar focusing behavior under full-polarized incident waves at dual-band, and the polarization states of the generated beams are determined by the polarization states of the feed source.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"646-650"},"PeriodicalIF":3.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wireless power transfer (WPT) is a key technology for the next generation of wireless technology, e.g., 6G and beyond. By utilizing energy harvesting (EH) techniques, WPT enables a seamless and efficient power supply [1], [2], [3], [4], [5]. Highly efficient and reliable WPT systems are crucial for enabling the deployment of wireless charging solutions for a wide range of low-power applications, such as sensors for health care or ambient monitoring in smart cities. In any scenario involving WPT, antennas play a critical role as they are responsible for efficiently transmitting and receiving electromagnetic waves carrying a specific amount of power. Advancements in antenna design and optimization directly impact the overall efficiency and performance of WPT systems.
{"title":"Guest Editorial: Special Cluster on Antennas and Metasurfaces for Advanced Wireless Power Transfer","authors":"Martino Aldrigo;Qi Luo;Diego Masotti;Filippo Costa;Yonggang Zhou","doi":"10.1109/LAWP.2024.3477668","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3477668","url":null,"abstract":"Wireless power transfer (WPT) is a key technology for the next generation of wireless technology, e.g., 6G and beyond. By utilizing energy harvesting (EH) techniques, WPT enables a seamless and efficient power supply [1], [2], [3], [4], [5]. Highly efficient and reliable WPT systems are crucial for enabling the deployment of wireless charging solutions for a wide range of low-power applications, such as sensors for health care or ambient monitoring in smart cities. In any scenario involving WPT, antennas play a critical role as they are responsible for efficiently transmitting and receiving electromagnetic waves carrying a specific amount of power. Advancements in antenna design and optimization directly impact the overall efficiency and performance of WPT systems.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"23 11","pages":"3779-3781"},"PeriodicalIF":3.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10778127","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-02DOI: 10.1109/LAWP.2024.3510132
Shahid Ullah;Yejun He;Yi Huang
This letter presents a compact triband circular polarized (CP), multiple-input–multiple-output (MIMO) antenna by using the ground plane excitation technique, where four simple E-shape meander lines are designed at the top of the low-cost substrate. The electrical dimensions of the proposed four-port MIMO antenna are 0.33$lambda times$ 0.33$lambda times$ 0.012$lambda$, where ($lambda$) is the free-space wavelength at the lower operating frequency. The prototype is intended to be single-layered and manufactured on the FR-4 substrate. The MIMO antenna covers the impedance operating bands of 2.14 GHz to 2.49 GHz, 3.4 GHz to 3.81 GHz, and 4.7 GHz to 6.6 GHz, with the isolation of $geq$18.2 dB, $geq$23 dB, and $geq$27 dB, respectively. The CP properties and isolation are achieved by the installation of an optimized special connected ground plane. With the help of this technique, the axial ratios are obtained below 3 dB at the required operating frequencies. The simulated and measured S-parameters, axial ratios, radiation patterns, gain, and efficiency agree with each other and have better results. The diversity parameters are also calculated and have an acceptable value in both simulated and measured. The proposed MIMO antenna is a good candidate for wireless local area network and worldwide interoperability for microwave access.
{"title":"A Triband Circular-Polarized Four-Port MIMO Antenna With Compact Size and Low Mutual Coupling","authors":"Shahid Ullah;Yejun He;Yi Huang","doi":"10.1109/LAWP.2024.3510132","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3510132","url":null,"abstract":"This letter presents a compact triband circular polarized (CP), multiple-input–multiple-output (MIMO) antenna by using the ground plane excitation technique, where four simple E-shape meander lines are designed at the top of the low-cost substrate. The electrical dimensions of the proposed four-port MIMO antenna are 0.33<inline-formula><tex-math>$lambda times$</tex-math></inline-formula> 0.33<inline-formula><tex-math>$lambda times$</tex-math></inline-formula> 0.012<inline-formula><tex-math>$lambda$</tex-math></inline-formula>, where (<inline-formula><tex-math>$lambda$</tex-math></inline-formula>) is the free-space wavelength at the lower operating frequency. The prototype is intended to be single-layered and manufactured on the FR-4 substrate. The MIMO antenna covers the impedance operating bands of 2.14 GHz to 2.49 GHz, 3.4 GHz to 3.81 GHz, and 4.7 GHz to 6.6 GHz, with the isolation of <inline-formula><tex-math>$geq$</tex-math></inline-formula>18.2 dB, <inline-formula><tex-math>$geq$</tex-math></inline-formula>23 dB, and <inline-formula><tex-math>$geq$</tex-math></inline-formula>27 dB, respectively. The CP properties and isolation are achieved by the installation of an optimized special connected ground plane. With the help of this technique, the axial ratios are obtained below 3 dB at the required operating frequencies. The simulated and measured <italic>S</i>-parameters, axial ratios, radiation patterns, gain, and efficiency agree with each other and have better results. The diversity parameters are also calculated and have an acceptable value in both simulated and measured. The proposed MIMO antenna is a good candidate for wireless local area network and worldwide interoperability for microwave access.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"621-625"},"PeriodicalIF":3.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This letter proposes a switchable frequency-selective surface (FSS) that achieves the switching of four transmission states in Ku band. The aperture-coupled patch resonator structure is adopted to achieve spatial filtering with high selectivity. Different patch resonators are loaded on the top and bottom layers, and four p-i-n diodes are embedded in each layer. By applying different bias voltages to the top and bottom layers, respectively, the frequency reconfigurable transmission of four states across 13.2 GHz to 16.7 GHz can be achieved. A 160 mm × 160 mm FSS sample is fabricated and measured. The insertion loss of the four transmission states is between 1.5 dB and 3.6 dB. It has a dual-polarized function and 30° incident angle stability. This work verifies the possibility of using switchable FSS to realize frequency hopping transmission in Ku band for the first time. It expands the application scenario of integrating active FSS with Ku-band antennas.
{"title":"Switchable Frequency-Selective Surface for Multistate Highly Selective Transmission in Ku Band","authors":"Chenxi Fan;Kun Duan;Ye Deng;Ke Chen;Tian Jiang;Junming Zhao;Yijun Feng","doi":"10.1109/LAWP.2024.3510583","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3510583","url":null,"abstract":"This letter proposes a switchable frequency-selective surface (FSS) that achieves the switching of four transmission states in Ku band. The aperture-coupled patch resonator structure is adopted to achieve spatial filtering with high selectivity. Different patch resonators are loaded on the top and bottom layers, and four p-i-n diodes are embedded in each layer. By applying different bias voltages to the top and bottom layers, respectively, the frequency reconfigurable transmission of four states across 13.2 GHz to 16.7 GHz can be achieved. A 160 mm × 160 mm FSS sample is fabricated and measured. The insertion loss of the four transmission states is between 1.5 dB and 3.6 dB. It has a dual-polarized function and 30° incident angle stability. This work verifies the possibility of using switchable FSS to realize frequency hopping transmission in Ku band for the first time. It expands the application scenario of integrating active FSS with Ku-band antennas.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"641-645"},"PeriodicalIF":3.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This letter proposed an algorithm utilizing the continuous phase superposition method to efficiently code multibeam 1-bit programable metasurface array. This method enables rapid metasurface array multibeam coding, which involves first calculating and superimposing the continuous phase matrix, and then the resulting code matrix is discretized. Additionally, an optimized algorithm is presented to lower the complexity of the overall procedure. The proposed algorithm enables the direct calculation of a maximum of 32 beam codes. The proposed algorithm exhibits high computational speed, low hardware resource consumption, and achieves high accuracy in generating beam pointing. The proposed algorithm addresses the issue of combining the number of beams, processing speed, and accuracy in the calculation of metasurface coding, which is not possible with standard algorithms. The algorithm is tested and validated using a 64 × 64 scale 1-bit metasurface array with meta-element full-wave simulation. During the test, 32 independent beams with arbitrary pointing directions are generated by the proposed algorithm. A maximum off-axis angle of 45° for the scanning range is supported by the proposed algorithm. Generated beams are both independent and clear, and the beam pointing error is limited to a maximum of 0.25%. The proposed algorithm for dual-beam coding achieves an average computation time of 1.18 ms, which is about 30 000 times faster than the typical nonlinear iterative optimization algorithm that takes 38 s.
{"title":"Multibeam 1-Bit Coding Programmable Metasurface Based on Superposition Method","authors":"Yanjun Du;Jianming Huang;Naibo Zhang;Yansong Cui;Weizheng Ren","doi":"10.1109/LAWP.2024.3509587","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3509587","url":null,"abstract":"This letter proposed an algorithm utilizing the continuous phase superposition method to efficiently code multibeam 1-bit programable metasurface array. This method enables rapid metasurface array multibeam coding, which involves first calculating and superimposing the continuous phase matrix, and then the resulting code matrix is discretized. Additionally, an optimized algorithm is presented to lower the complexity of the overall procedure. The proposed algorithm enables the direct calculation of a maximum of 32 beam codes. The proposed algorithm exhibits high computational speed, low hardware resource consumption, and achieves high accuracy in generating beam pointing. The proposed algorithm addresses the issue of combining the number of beams, processing speed, and accuracy in the calculation of metasurface coding, which is not possible with standard algorithms. The algorithm is tested and validated using a 64 × 64 scale 1-bit metasurface array with meta-element full-wave simulation. During the test, 32 independent beams with arbitrary pointing directions are generated by the proposed algorithm. A maximum off-axis angle of 45° for the scanning range is supported by the proposed algorithm. Generated beams are both independent and clear, and the beam pointing error is limited to a maximum of 0.25%. The proposed algorithm for dual-beam coding achieves an average computation time of 1.18 ms, which is about 30 000 times faster than the typical nonlinear iterative optimization algorithm that takes 38 s.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"602-606"},"PeriodicalIF":3.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This letter reports on a cast iron manhole cover with a slit structure to improve the efficiency of radio propagation from underground structures. The spiral slit of a broadband antenna was applied to the iron cover to achieve broadband radio propagation characteristics. A full-scale manhole model was fabricated and evaluated, resulting in a maximum gain of 2.5 dB and a bandwidth of 193 MHz [(807 to 1000) MHz]. The results of field tests with the prototype showed an average of −77.9 dBm for the slit iron cover and −100.5 dBm for the conventional product in wireless communication from inside a manhole through the iron cover. The 22.6 dBm improvement in radio transmission while maintaining the functionality of the steel cover is sufficiently practical. This result can contribute to the maintenance and management of aging infrastructure and the spread of disaster prevention systems as a technology to reduce the cost of introducing Internet-of-Things (IoT) systems to underground infrastructure.
{"title":"Development of Cast Iron Manhole Cover With Broadband-Radio-Transmission Characteristics Applying Spiral Structure","authors":"Eiichi Tateishi;Yuantong Yi;Nobuhiro Kai;Takaya Kumagae;Tatsuya Yamaguchi;Haruichi Kanaya","doi":"10.1109/LAWP.2024.3509772","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3509772","url":null,"abstract":"This letter reports on a cast iron manhole cover with a slit structure to improve the efficiency of radio propagation from underground structures. The spiral slit of a broadband antenna was applied to the iron cover to achieve broadband radio propagation characteristics. A full-scale manhole model was fabricated and evaluated, resulting in a maximum gain of 2.5 dB and a bandwidth of 193 MHz [(807 to 1000) MHz]. The results of field tests with the prototype showed an average of −77.9 dBm for the slit iron cover and −100.5 dBm for the conventional product in wireless communication from inside a manhole through the iron cover. The 22.6 dBm improvement in radio transmission while maintaining the functionality of the steel cover is sufficiently practical. This result can contribute to the maintenance and management of aging infrastructure and the spread of disaster prevention systems as a technology to reduce the cost of introducing Internet-of-Things (IoT) systems to underground infrastructure.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"612-615"},"PeriodicalIF":3.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-02DOI: 10.1109/LAWP.2024.3509460
Hongwei Ren;Buyun Wang;Juan Chen;Sen Yan
In this letter, a novel N-port characteristic mode (CM) formulation is proposed. By developing the weighting matrix appropriately and solving the proposed generalized eigenvalue equation, the obtained eigenvalues possess significant physical interpretation. Most importantly, the contributions of the radiated, dissipated, and reactive powers can be separated by the obtained eigenvalues. Numerical results of several antennas in lossy environments validate that the proposed N-port CM formulation not only reveals the resonant CMs within the considered frequency band but also further identifies the modal radiation efficiency of each CM.
{"title":"An Alternative N-Port Characteristic-Mode Formulation for Lossy Structures","authors":"Hongwei Ren;Buyun Wang;Juan Chen;Sen Yan","doi":"10.1109/LAWP.2024.3509460","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3509460","url":null,"abstract":"In this letter, a novel <italic>N</i>-port characteristic mode (CM) formulation is proposed. By developing the weighting matrix appropriately and solving the proposed generalized eigenvalue equation, the obtained eigenvalues possess significant physical interpretation. Most importantly, the contributions of the radiated, dissipated, and reactive powers can be separated by the obtained eigenvalues. Numerical results of several antennas in lossy environments validate that the proposed <italic>N</i>-port CM formulation not only reveals the resonant CMs within the considered frequency band but also further identifies the modal radiation efficiency of each CM.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"592-596"},"PeriodicalIF":3.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This letter presents a design of a self-packaged multimode antenna at the W band. The modes of the aperture antenna are analyzed. An additive resonant mode is excited by introducing a radiation patch. A metal post is inserted in the resonance cavity to suppress an undesired mode. The multimode antenna is embedded in a silicon interposer with air bridge in wafer-level packaging. The insertion loss of the air bridge with coplanar waveguide with grounds (CPWGs) is measured. The proposed antenna is fabricated by using in-house silicon-based microelectromechanical systems (MEMS) photosensitive composite film fabrication process. The measured gain is 7 dBi at 92 GHz with an impedance bandwidth of 81.4 GHz to 109 GHz. The self-packaged antenna shows some advantages and can be further integrated with other components.
{"title":"Low-Profile Self-Packaged Multimode SIW Antenna With Low-Loss Air-Bridge Interconnection","authors":"Jun-Zhe Zhao;Liang Zhou;Zi-Qi Zhang;Yin-Shan Huang;Cheng-rui Zhang","doi":"10.1109/LAWP.2024.3510570","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3510570","url":null,"abstract":"This letter presents a design of a self-packaged multimode antenna at the W band. The modes of the aperture antenna are analyzed. An additive resonant mode is excited by introducing a radiation patch. A metal post is inserted in the resonance cavity to suppress an undesired mode. The multimode antenna is embedded in a silicon interposer with air bridge in wafer-level packaging. The insertion loss of the air bridge with coplanar waveguide with grounds (CPWGs) is measured. The proposed antenna is fabricated by using in-house silicon-based microelectromechanical systems (MEMS) photosensitive composite film fabrication process. The measured gain is 7 dBi at 92 GHz with an impedance bandwidth of 81.4 GHz to 109 GHz. The self-packaged antenna shows some advantages and can be further integrated with other components.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"636-640"},"PeriodicalIF":3.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-02DOI: 10.1109/LAWP.2024.3510514
Amjad Iqbal;Muath Al-Hasan;Ismail Ben Mabrouk;Tayeb A. Denidni
This letter proposes a compact self-quadruplexing antenna based on an eighth-mode substrate integrated waveguide (EMSIW). The proposed antenna design integrates the unique properties of the EMSIW to achieve an efficient and isolated quadruplexing functionality with a highly compacted geometry. The proposed design operates at different frequencies: 4.3 GHz for Port-1, 5.2 GHz for Port-2, 5.8 GHz for Port-3, and 6.9 GHz for Port-4 when each respective port is active. A full-mode square SIW configuration is considered, which is subsequently transformed into an uneven eighth-mode SIW. Different dimensions of slots are strategically added to each cavity to achieve different operating frequencies and compactness. As a result, it takes up a compact area measuring 0.11$lambda _{g}^{2}$. In addition, the proposed design ensures reasonable separation between the resonators to maintain isolation level of 29.1 dB. The proposed antenna gains are observed as 5.19 dBi (4.3 GHz), 5.63 dBi (5.2 GHz), 6.88 dBi (5.8 GHz), and 7.57 dBi (6.9 GHz).The proposed quadruplexing antenna offers attractive features that make it well suited for next-generation wireless communication devices. These features include mainly compact size, excellent isolation, independently controllable frequency bands, and high gain characteristics, making it highly desirable for modern wireless communication.
{"title":"Compact EMSIW Quadruplexing Antenna","authors":"Amjad Iqbal;Muath Al-Hasan;Ismail Ben Mabrouk;Tayeb A. Denidni","doi":"10.1109/LAWP.2024.3510514","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3510514","url":null,"abstract":"This letter proposes a compact self-quadruplexing antenna based on an eighth-mode substrate integrated waveguide (EMSIW). The proposed antenna design integrates the unique properties of the EMSIW to achieve an efficient and isolated quadruplexing functionality with a highly compacted geometry. The proposed design operates at different frequencies: 4.3 GHz for Port-1, 5.2 GHz for Port-2, 5.8 GHz for Port-3, and 6.9 GHz for Port-4 when each respective port is active. A full-mode square SIW configuration is considered, which is subsequently transformed into an uneven eighth-mode SIW. Different dimensions of slots are strategically added to each cavity to achieve different operating frequencies and compactness. As a result, it takes up a compact area measuring 0.11<inline-formula><tex-math>$lambda _{g}^{2}$</tex-math></inline-formula>. In addition, the proposed design ensures reasonable separation between the resonators to maintain isolation level of 29.1 dB. The proposed antenna gains are observed as 5.19 dBi (4.3 GHz), 5.63 dBi (5.2 GHz), 6.88 dBi (5.8 GHz), and 7.57 dBi (6.9 GHz).The proposed quadruplexing antenna offers attractive features that make it well suited for next-generation wireless communication devices. These features include mainly compact size, excellent isolation, independently controllable frequency bands, and high gain characteristics, making it highly desirable for modern wireless communication.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"626-630"},"PeriodicalIF":3.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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