Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022968
Yin-song Shen, Zi He, Dazhi Ding
In a communication system, the effective degree of freedom (DoF) has a limit with the increasing of the number of sources/receivers. In this paper, the parabolic equation method is used to establish the electromagnetic (EM) channel model. And the correctness of the model is verified by comparison with the free space analytical solution. In addition, the sensitivity between the size of the transmitting surface and the effective degree of freedom is analyzed by using parabola method. The channel matrix model based on the parabolic algorithm provides a reference for establishing efficient and stable communication lines in free space.
{"title":"Prediction of channel freedom limit by parabolic equation method","authors":"Yin-song Shen, Zi He, Dazhi Ding","doi":"10.1109/ICMMT55580.2022.10022968","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022968","url":null,"abstract":"In a communication system, the effective degree of freedom (DoF) has a limit with the increasing of the number of sources/receivers. In this paper, the parabolic equation method is used to establish the electromagnetic (EM) channel model. And the correctness of the model is verified by comparison with the free space analytical solution. In addition, the sensitivity between the size of the transmitting surface and the effective degree of freedom is analyzed by using parabola method. The channel matrix model based on the parabolic algorithm provides a reference for establishing efficient and stable communication lines in free space.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128577365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023418
Xin Liu, Xiaoling Zhu, Ziming Zhao, Ruijia Liu
A three-stage 6W Ka-band power amplifier, operating over the bandwidth of 27-31.5 GHz for 5G n257 and n261 wireless communication, is simulated in this paper. Utilizing the 0.15-um gallium nitride (GaN) high electron mobility transistor (HEMT) technology, this PA simulations achieved an output power of more than 38 dBm and a power added efficiency of more than 24% in continuous-wave (CW) operation at a drain supply voltage of 20 V. The OMN is designed carefully with a low pass LC filter and Wilkinson power combiner for high output power and broadband. The chip size is $4.3^{*}2.5 mm^{2}$.
{"title":"A Three-Stage 6W GaN Power Combining Amplifier MMIC Design at Ka-Band","authors":"Xin Liu, Xiaoling Zhu, Ziming Zhao, Ruijia Liu","doi":"10.1109/ICMMT55580.2022.10023418","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023418","url":null,"abstract":"A three-stage 6W Ka-band power amplifier, operating over the bandwidth of 27-31.5 GHz for 5G n257 and n261 wireless communication, is simulated in this paper. Utilizing the 0.15-um gallium nitride (GaN) high electron mobility transistor (HEMT) technology, this PA simulations achieved an output power of more than 38 dBm and a power added efficiency of more than 24% in continuous-wave (CW) operation at a drain supply voltage of 20 V. The OMN is designed carefully with a low pass LC filter and Wilkinson power combiner for high output power and broadband. The chip size is $4.3^{*}2.5 mm^{2}$.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128257860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023022
Wang Haiyi, Zhou Yujin, Cheng Yong
In this work, a right angle broadband transition from substrate integrated waveguide to air-filled rectangular waveguide is proposed at the W-band. Two pairs of inductive posts and multi-section stepped waveguide impedance transformer are used to obtain the broader matching. HFSS simulation result of the transition shows a return loss less than - 10 dB and insertion loss is less than 0.5 dB over an impedance bandwidth is about 50.1%. This transition structure can provide a wider bandwidth and simple structure, which can be applied to more systems.
{"title":"E-Plane Right-Angle Broadband Transition of SIW to Rectangular Waveguide","authors":"Wang Haiyi, Zhou Yujin, Cheng Yong","doi":"10.1109/ICMMT55580.2022.10023022","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023022","url":null,"abstract":"In this work, a right angle broadband transition from substrate integrated waveguide to air-filled rectangular waveguide is proposed at the W-band. Two pairs of inductive posts and multi-section stepped waveguide impedance transformer are used to obtain the broader matching. HFSS simulation result of the transition shows a return loss less than - 10 dB and insertion loss is less than 0.5 dB over an impedance bandwidth is about 50.1%. This transition structure can provide a wider bandwidth and simple structure, which can be applied to more systems.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128677399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022949
Hongcheng Dong, Jincheng Wang, Haizhen Cai, G. Su, Jun Liu, Keqiang Yue, Jiang Luo, Lingling Sun
A 45.2~67.2 GHz substrate integrated waveguide (SIW) bandpass filter (BPF), which is fabricated by using Integrated Passive Device process (IPD), is proposed in this paper. The complementary split-ring resonator (CSRR) etched on the SIW and the coplanar to waveguide conversion structure are adopted to realize the performance of low loss, wide bandwidth and miniaturization. The transmission zeros, which is generated by using the CSRRs etched on the SIW, are located to the right of the passband and are flexible adjustability. The measurement results show that the operating frequency of the presented SIW BPF is range from 45.2 GHz to 67.2 GHz and the return loss of the filter is better than -25dB. This proposed SIW BPF has a minimum insertion loss of -1.44dB at 54.90GHz and a fractional bandwidth of 39%. The filter has the advantages of small size, low loss, large power capacity and wide passband, and so on. This BPF presented in this paper is suitable for millimeter wave communication systems and radar systems.
{"title":"Design of Wideband Millimeter-Wave Filter in IPD Process","authors":"Hongcheng Dong, Jincheng Wang, Haizhen Cai, G. Su, Jun Liu, Keqiang Yue, Jiang Luo, Lingling Sun","doi":"10.1109/ICMMT55580.2022.10022949","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022949","url":null,"abstract":"A 45.2~67.2 GHz substrate integrated waveguide (SIW) bandpass filter (BPF), which is fabricated by using Integrated Passive Device process (IPD), is proposed in this paper. The complementary split-ring resonator (CSRR) etched on the SIW and the coplanar to waveguide conversion structure are adopted to realize the performance of low loss, wide bandwidth and miniaturization. The transmission zeros, which is generated by using the CSRRs etched on the SIW, are located to the right of the passband and are flexible adjustability. The measurement results show that the operating frequency of the presented SIW BPF is range from 45.2 GHz to 67.2 GHz and the return loss of the filter is better than -25dB. This proposed SIW BPF has a minimum insertion loss of -1.44dB at 54.90GHz and a fractional bandwidth of 39%. The filter has the advantages of small size, low loss, large power capacity and wide passband, and so on. This BPF presented in this paper is suitable for millimeter wave communication systems and radar systems.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129634613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022630
Qi-Bo Yan, Z. Xie
This paper proposes a duplex dual circularly polarized (CP) antenna for satellites communication. The downlink operates in 11.3 - 12.3 GHz with right-hand circular polarization (RHCP), and the uplink operates in 14 - 14.5 GHz with left-hand circular polarization (LHCP). The sequential rotation(SR) technique is used to achieve the circular polarization, and the CP axial ratio (AR) of operating bands are below 3 dB. The elevation angle of the 3-dB AR of the center frequency in uplink is larger than ±45°, and in downlink is larger than ±48°. This structure also uses an electromagnetic band gap (EBG) structure for decoupling and achieves an isolation more than -36.16 dB in the uplink. Finally, By calculating the beam direction patterns of 16 ×16 array with HFSS array factor calculation, the scan angle is larger than 23° when inputting 90° phase difference in phi=0° direction.
{"title":"A Duplex Dual Bands Circularly Polarized Patch Antenna for Satellite Internet","authors":"Qi-Bo Yan, Z. Xie","doi":"10.1109/ICMMT55580.2022.10022630","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022630","url":null,"abstract":"This paper proposes a duplex dual circularly polarized (CP) antenna for satellites communication. The downlink operates in 11.3 - 12.3 GHz with right-hand circular polarization (RHCP), and the uplink operates in 14 - 14.5 GHz with left-hand circular polarization (LHCP). The sequential rotation(SR) technique is used to achieve the circular polarization, and the CP axial ratio (AR) of operating bands are below 3 dB. The elevation angle of the 3-dB AR of the center frequency in uplink is larger than ±45°, and in downlink is larger than ±48°. This structure also uses an electromagnetic band gap (EBG) structure for decoupling and achieves an isolation more than -36.16 dB in the uplink. Finally, By calculating the beam direction patterns of 16 ×16 array with HFSS array factor calculation, the scan angle is larger than 23° when inputting 90° phase difference in phi=0° direction.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127075054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022835
Xuan Chen, Min Li, Zuojia Wang, Wenchao Chen, Er-Ping Li
Metasurfaces have attracted substantial attention in recent years due to the ability for the versatile manipulation of electromagnetic (EM) wave. Recently, Janus backscattering mirrors that retroreflect incident waves for one side while show transparency in the time-reversed reflection channel have been discussed. Here, the dependence of the broadband performance on the geometry parameters and the angles are investigated. The numerical simulated results validate that the bandwidth and the efficiency depend on geometry parameters, especially the tilted angle and incident angle.
{"title":"Broadband Performance of Janus Backscattering in Tilted Dipolar Array","authors":"Xuan Chen, Min Li, Zuojia Wang, Wenchao Chen, Er-Ping Li","doi":"10.1109/ICMMT55580.2022.10022835","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022835","url":null,"abstract":"Metasurfaces have attracted substantial attention in recent years due to the ability for the versatile manipulation of electromagnetic (EM) wave. Recently, Janus backscattering mirrors that retroreflect incident waves for one side while show transparency in the time-reversed reflection channel have been discussed. Here, the dependence of the broadband performance on the geometry parameters and the angles are investigated. The numerical simulated results validate that the bandwidth and the efficiency depend on geometry parameters, especially the tilted angle and incident angle.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127184041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023244
Qian Song, Pengcheng Wang, N. Wang, Jinghui Qiu
A complex offset double-reflector configuration for focal-plane array (FPA) is presented, optimized for highresolution indoor imaging applications. The proposed quasioptical system utilizes a compact ellipsoidal Dragonian geometry due to its uniform scanning performance with a broad range of $pm 10^{circ}$ field-of-view (FoV). Fourteen beams can be scanned before reaching the 3dB scan loss limit; therefore, the number of active elements in the array increases, resulting in a higher EIRP. We demonstrate the design equivalence between a paraboloidal main reflector and an ellipsoidal one. The enhanced depth-of-field is obtained through generating a quasi-non-diffractive Bessel beam by an axicon. The system can scan the beam over 0.5 m in crossrange at a standoff range with less than a 3% increase of the half-power beam-width. A demonstrator was fabricated, and the defog experimental results confirm the predicted performance.
{"title":"Optimum Quasi-Optical System Synthesis With Enhanced Depth-of-Field for Cross-Range Refocusing Terahertz Defog Camera","authors":"Qian Song, Pengcheng Wang, N. Wang, Jinghui Qiu","doi":"10.1109/ICMMT55580.2022.10023244","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023244","url":null,"abstract":"A complex offset double-reflector configuration for focal-plane array (FPA) is presented, optimized for highresolution indoor imaging applications. The proposed quasioptical system utilizes a compact ellipsoidal Dragonian geometry due to its uniform scanning performance with a broad range of $pm 10^{circ}$ field-of-view (FoV). Fourteen beams can be scanned before reaching the 3dB scan loss limit; therefore, the number of active elements in the array increases, resulting in a higher EIRP. We demonstrate the design equivalence between a paraboloidal main reflector and an ellipsoidal one. The enhanced depth-of-field is obtained through generating a quasi-non-diffractive Bessel beam by an axicon. The system can scan the beam over 0.5 m in crossrange at a standoff range with less than a 3% increase of the half-power beam-width. A demonstrator was fabricated, and the defog experimental results confirm the predicted performance.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127242851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a VHF ultra-wideband Vivaldi antenna with loading structure for electromagnetic compatibility (EMC) test is proposed. The antenna is composed of a half traditional Vivaldi antenna loading corrugated edge and a metal ground. According to the principle of image, the size of the Vivaldi antenna can be reduced to half due to the application of a metal ground. In addition, the corrugated edge is introduced to reduce the lowest operating frequency. The electrical size of the proposed antenna is $0.68lambda_{0}times 0.21lambda_{0} (lambda_{0}$ is the wavelength of lowest working frequency in free space). The lowest operating frequency is reduced and radiation directivity is improved due to the corrugated edge. The performance comparison between the antenna with loading structure and the traditional one and the influence of loading corrugated edge are analyzed in the paper. The simulation results show that the cut-off frequency is reduced from 162.8 MHz to 127.4 MHz with 21.7% fractional bandwidth. In the VHF band, the maximum gain of the antenna can reach 9.67 dBi.
{"title":"A VHF Ultra-wideband Vivaldi Antenna with Loading Structure for EMC Test","authors":"Chenxuan Gu, Peng Zhou, Shunli Li, Hongxin Zhao, Xiaoxing Yin","doi":"10.1109/ICMMT55580.2022.10022458","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022458","url":null,"abstract":"In this paper, a VHF ultra-wideband Vivaldi antenna with loading structure for electromagnetic compatibility (EMC) test is proposed. The antenna is composed of a half traditional Vivaldi antenna loading corrugated edge and a metal ground. According to the principle of image, the size of the Vivaldi antenna can be reduced to half due to the application of a metal ground. In addition, the corrugated edge is introduced to reduce the lowest operating frequency. The electrical size of the proposed antenna is $0.68lambda_{0}times 0.21lambda_{0} (lambda_{0}$ is the wavelength of lowest working frequency in free space). The lowest operating frequency is reduced and radiation directivity is improved due to the corrugated edge. The performance comparison between the antenna with loading structure and the traditional one and the influence of loading corrugated edge are analyzed in the paper. The simulation results show that the cut-off frequency is reduced from 162.8 MHz to 127.4 MHz with 21.7% fractional bandwidth. In the VHF band, the maximum gain of the antenna can reach 9.67 dBi.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130057800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022831
Hao Tang, S. Ding, Zhao-Jun Zhu
In this paper, a method to generate dual asymmetric non-diffracting beams by a transmission metasurface is introduced. A metasurface is regularly divided into two independent complementary sub-arrays. Two sub-arrays are used to generate non-diffracting beams that propagate in different directions in a shared-aperture manner. The metasurface is made up of thousands of units. The unit modulates the transmission phase shift by its own rotation and consists of two same metallic layers and a medium layer in the middle. The transmission phase shift of the unit can cover 360°. According to this design method, two non-diffracting beams with asymmetric inclination angles are emitted by a metasurface.
{"title":"Generation of Dual Asymmetric Non-diffracting Beams Based on Transmission Metasurface in Microwave-frequency Region","authors":"Hao Tang, S. Ding, Zhao-Jun Zhu","doi":"10.1109/ICMMT55580.2022.10022831","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022831","url":null,"abstract":"In this paper, a method to generate dual asymmetric non-diffracting beams by a transmission metasurface is introduced. A metasurface is regularly divided into two independent complementary sub-arrays. Two sub-arrays are used to generate non-diffracting beams that propagate in different directions in a shared-aperture manner. The metasurface is made up of thousands of units. The unit modulates the transmission phase shift by its own rotation and consists of two same metallic layers and a medium layer in the middle. The transmission phase shift of the unit can cover 360°. According to this design method, two non-diffracting beams with asymmetric inclination angles are emitted by a metasurface.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128975871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023145
Bang Wei, Jialiang Mi, Dawei Li, Zheng Li, Junhong Wang
A novel substrate integrated waveguide (SIW) leaky-wave antenna (LWA) with electronically controlled beam scanning performance is proposed in this paper for microwave and millimeter wave wireless communication systems. By integrating high-band SIW into low-band SIW, a dual-band SIW structure that can transmit Ku-and Ka-band electromagnetic waves can be obtained. Two types of linear slot arrays are etched above SIW for continuous leakage in two bands. In this slot arrays, the radiation state of each slot unit can be controlled by the PIN diodes loaded above it. In this way, different radiation aperture fields can be obtained by controlling the PIN diodes, and the electronically controlled beam scanning of the antenna can be realized. Simulation and measurement verify the feasibility of the design. The measured results show that the antenna can achieve 121° and 81° fixed-frequency beam scanning in Ku and Ka bands, respectively, in the 3dB gain range.
{"title":"Electronically Controlled Leaky-Wave Antenna Based on Dual-Band SIW Structure","authors":"Bang Wei, Jialiang Mi, Dawei Li, Zheng Li, Junhong Wang","doi":"10.1109/ICMMT55580.2022.10023145","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023145","url":null,"abstract":"A novel substrate integrated waveguide (SIW) leaky-wave antenna (LWA) with electronically controlled beam scanning performance is proposed in this paper for microwave and millimeter wave wireless communication systems. By integrating high-band SIW into low-band SIW, a dual-band SIW structure that can transmit Ku-and Ka-band electromagnetic waves can be obtained. Two types of linear slot arrays are etched above SIW for continuous leakage in two bands. In this slot arrays, the radiation state of each slot unit can be controlled by the PIN diodes loaded above it. In this way, different radiation aperture fields can be obtained by controlling the PIN diodes, and the electronically controlled beam scanning of the antenna can be realized. Simulation and measurement verify the feasibility of the design. The measured results show that the antenna can achieve 121° and 81° fixed-frequency beam scanning in Ku and Ka bands, respectively, in the 3dB gain range.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129100652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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