Pub Date : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848358
N. M, T. Shanumganantham
In this paper, introduced SIW based cavity backed slot antenna for Ku band applications and Rogers 5880 material is used for design which as 2.2 dielectric constant. The moon shaped slot introduced in the bottom of the design and meta material is loaded on top of the substrate for bandwidth enhancement. The EM tool is used to analyze the performance of the antenna and also discussed antenna parameters like reflection coefficient, VSWR, Radiation patterns, efficiency, gain etc. The antenna occupies the bandwidth of 3.8GHz, ranges from 13.37 GHz to 17.15 GHz and observed bi-directional radiation patterns, used for wireless communication applications like a ku band.
{"title":"Ku-band CSRR Loaded SIW Cavity Backed Slot Antenna","authors":"N. M, T. Shanumganantham","doi":"10.1109/WAMS54719.2022.9848358","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848358","url":null,"abstract":"In this paper, introduced SIW based cavity backed slot antenna for Ku band applications and Rogers 5880 material is used for design which as 2.2 dielectric constant. The moon shaped slot introduced in the bottom of the design and meta material is loaded on top of the substrate for bandwidth enhancement. The EM tool is used to analyze the performance of the antenna and also discussed antenna parameters like reflection coefficient, VSWR, Radiation patterns, efficiency, gain etc. The antenna occupies the bandwidth of 3.8GHz, ranges from 13.37 GHz to 17.15 GHz and observed bi-directional radiation patterns, used for wireless communication applications like a ku band.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129691558","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9944980
Preeti Sharma, R. Tiwari, Prabhakar Singh, P. Kumar
This work explores a compact dual band trident-shaped monopole antenna for 5G applications. The designed antenna has dimension $32 times 25times 1.524 text{mm}^{3}$. The structure of the antenna consists of symmetric trident-shaped patch with arrow shaped strip in the center. The L-shaped slots are used to modify the defected ground plane and to obtain the dual band characteristics. The proposed design demonstrates the measured impedance bandwidths in the range 3.27-3.88 GHz (lower band) and 4.85-5.23 GHz (upper band), respectively. The radiation efficiency for both the operating bands are above 76%, the realized average gains are 1.28 dBi and 1.7 dBi across both the operating bands, respectively. The radiation patterns of the monopole antenna are acceptable for 5G applications. The proposed design is modeled and simulated using CST microwave studio. The simulated results agreeing well with the fabricated antenna.
{"title":"Trident-shaped Dual Band Monopole Antenna with Defected Ground Plane for 5G Applications","authors":"Preeti Sharma, R. Tiwari, Prabhakar Singh, P. Kumar","doi":"10.1109/WAMS54719.2022.9944980","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9944980","url":null,"abstract":"This work explores a compact dual band trident-shaped monopole antenna for 5G applications. The designed antenna has dimension $32 times 25times 1.524 text{mm}^{3}$. The structure of the antenna consists of symmetric trident-shaped patch with arrow shaped strip in the center. The L-shaped slots are used to modify the defected ground plane and to obtain the dual band characteristics. The proposed design demonstrates the measured impedance bandwidths in the range 3.27-3.88 GHz (lower band) and 4.85-5.23 GHz (upper band), respectively. The radiation efficiency for both the operating bands are above 76%, the realized average gains are 1.28 dBi and 1.7 dBi across both the operating bands, respectively. The radiation patterns of the monopole antenna are acceptable for 5G applications. The proposed design is modeled and simulated using CST microwave studio. The simulated results agreeing well with the fabricated antenna.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128653438","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847761
Satya Prakash, M. Mandal, P. Mondal
This paper presents a technique to enhance the antenna efficiency of a printed circuit board (PCB) based modified H-plane horn antenna. Improvement in antenna efficiency is obtained by correcting the phase error on the radiating aperture using a modified feed geometry. It also helps to improve input matching. This modification does not increase the overall rectangular dimension of the antenna when compared to a conventional H-plane horn antenna. As an example, a modified H-plane horn is presented for the 24-24.25 GHz ISM band. It increases the antenna efficiency by at least 30% over the conventional PCB-based horn. The best |S11| for a conventional horn in the same substrate which could be achieved is − 6 dB. In comparison, the modified horn provides a 10 dB matching bandwidth of at least 516 MHz. Other advantages are low side lobe levels and small 3 dB beamwidth.
{"title":"A Modified H-plane Horn Antenna In PCB Technology With Improved Efficiency","authors":"Satya Prakash, M. Mandal, P. Mondal","doi":"10.1109/WAMS54719.2022.9847761","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847761","url":null,"abstract":"This paper presents a technique to enhance the antenna efficiency of a printed circuit board (PCB) based modified H-plane horn antenna. Improvement in antenna efficiency is obtained by correcting the phase error on the radiating aperture using a modified feed geometry. It also helps to improve input matching. This modification does not increase the overall rectangular dimension of the antenna when compared to a conventional H-plane horn antenna. As an example, a modified H-plane horn is presented for the 24-24.25 GHz ISM band. It increases the antenna efficiency by at least 30% over the conventional PCB-based horn. The best |S11| for a conventional horn in the same substrate which could be achieved is − 6 dB. In comparison, the modified horn provides a 10 dB matching bandwidth of at least 516 MHz. Other advantages are low side lobe levels and small 3 dB beamwidth.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131322775","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848187
A. Chatterjee, M. Mandal
In this paper, co-design of power amplifier (PA), low pass filter (LPF) and antenna is presented for a beamforming network for 5G base stations. The targeted frequency range is 3.3-3.6 GHz. A class AB PA is designed using harmonic load pull technique to extract power from the harmonics and hence maximum possible power added efficiency (PAE) over a wide bandwidth. A high performance LPF is designed and integrated with the PA for improved harmonic suppression. The antenna is a U-shape ultra-wideband (UWB) antenna, which originally showed tilted dipole like radiation pattern. The antenna is modified to obtain a directional pattern in the broadside direction while maintaining the pattern over the desired frequency range. The PA, LPF and antenna are integrated on the same substrate and overall results are investigated. It is a good candidate for RF beamforming network for the base stations with user tracking capability.
{"title":"A Wideband Antenna Integrated Power Amplifier For 5G Base Stations","authors":"A. Chatterjee, M. Mandal","doi":"10.1109/WAMS54719.2022.9848187","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848187","url":null,"abstract":"In this paper, co-design of power amplifier (PA), low pass filter (LPF) and antenna is presented for a beamforming network for 5G base stations. The targeted frequency range is 3.3-3.6 GHz. A class AB PA is designed using harmonic load pull technique to extract power from the harmonics and hence maximum possible power added efficiency (PAE) over a wide bandwidth. A high performance LPF is designed and integrated with the PA for improved harmonic suppression. The antenna is a U-shape ultra-wideband (UWB) antenna, which originally showed tilted dipole like radiation pattern. The antenna is modified to obtain a directional pattern in the broadside direction while maintaining the pattern over the desired frequency range. The PA, LPF and antenna are integrated on the same substrate and overall results are investigated. It is a good candidate for RF beamforming network for the base stations with user tracking capability.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127036473","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847787
Priyanka Das, K. Mandal
This article elucidates the switchable absorption properties by employment of a thin film of vanadium dioxide. Gold patterns are designed over a quartz substrate which exhibit plasmonic resonance. In the insulator state of vanadium dioxide, the absorption of electromagnetic waves is lower as compared to its metallic state. The insulator-metal phase transition alters the electrical, thermal and optical properties of vanadium dioxide. The proposed absorber exhibits more than 98% absorption at 2.95 THz and 4.6 THz in the metallic state. Below the transition temperature, vanadium dioxide behaves as an insulator which allows transmission of electromagnetic waves. By varying the temperature, the rate of absorption can be changed due to variation of refractive index and permittivity of vanadium dioxide. Numerical simulations have been conducted using CST 2021 software.
{"title":"Dual-band Absorption using a Phase Transition Metal","authors":"Priyanka Das, K. Mandal","doi":"10.1109/WAMS54719.2022.9847787","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847787","url":null,"abstract":"This article elucidates the switchable absorption properties by employment of a thin film of vanadium dioxide. Gold patterns are designed over a quartz substrate which exhibit plasmonic resonance. In the insulator state of vanadium dioxide, the absorption of electromagnetic waves is lower as compared to its metallic state. The insulator-metal phase transition alters the electrical, thermal and optical properties of vanadium dioxide. The proposed absorber exhibits more than 98% absorption at 2.95 THz and 4.6 THz in the metallic state. Below the transition temperature, vanadium dioxide behaves as an insulator which allows transmission of electromagnetic waves. By varying the temperature, the rate of absorption can be changed due to variation of refractive index and permittivity of vanadium dioxide. Numerical simulations have been conducted using CST 2021 software.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126213240","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848325
V. Veerababu, M. Thottappan, S. Dwivedi
In this paper, a millimeter wave multi-cavity gyro-twystron has been designed and studied for beam-wave interaction behavior using a finite integration (FI) based 3D particle-in-cell (PIC) code. The PIC simulation of the current gyro-twystron predicted a maximum RF output power of ∼214 kW in TE01 mode at 35 GHz for 70 kV and 9.2A helical electron beam. The gain and bandwidth were calculated as ∼53 dB and 1.5 GHz, respectively. The efficiency of the amplifier was calculated as ∼33 %. Further, the present simulation results were validated with a nonlinear theory.
{"title":"Design and PIC Simulation of a Millimeter Wave Gyro-twystron Amplifier","authors":"V. Veerababu, M. Thottappan, S. Dwivedi","doi":"10.1109/WAMS54719.2022.9848325","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848325","url":null,"abstract":"In this paper, a millimeter wave multi-cavity gyro-twystron has been designed and studied for beam-wave interaction behavior using a finite integration (FI) based 3D particle-in-cell (PIC) code. The PIC simulation of the current gyro-twystron predicted a maximum RF output power of ∼214 kW in TE01 mode at 35 GHz for 70 kV and 9.2A helical electron beam. The gain and bandwidth were calculated as ∼53 dB and 1.5 GHz, respectively. The efficiency of the amplifier was calculated as ∼33 %. Further, the present simulation results were validated with a nonlinear theory.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"40 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132605418","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848153
Akila Murugesan, Nanda Gopalan S M, Ramkarthick A, Nevhedhithaa J, K. Selvan
This paper proposes a methodology to estimate the reflection phase due to a pair of Jerusalem Cross (JC) elements using an equivalent circuit model. Importantly, the mutual coupling between the elements is taken into account by using a novel approach. The broad picture is as follows: the individual element's reflection phase is determined using the circuit model. Then, the coupling between the two adjacently placed JCs is estimated by considering their mutual inductance. The reflection phases of the two elements are updated using the estimated mutual coupling factor. The updated reflection phase thus obtained is validated with simulation. The study is undertaken for three different separation distances.
{"title":"Estimation of reflection phase due to a pair of Jerusalem Cross elements using an equivalent circuit model","authors":"Akila Murugesan, Nanda Gopalan S M, Ramkarthick A, Nevhedhithaa J, K. Selvan","doi":"10.1109/WAMS54719.2022.9848153","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848153","url":null,"abstract":"This paper proposes a methodology to estimate the reflection phase due to a pair of Jerusalem Cross (JC) elements using an equivalent circuit model. Importantly, the mutual coupling between the elements is taken into account by using a novel approach. The broad picture is as follows: the individual element's reflection phase is determined using the circuit model. Then, the coupling between the two adjacently placed JCs is estimated by considering their mutual inductance. The reflection phases of the two elements are updated using the estimated mutual coupling factor. The updated reflection phase thus obtained is validated with simulation. The study is undertaken for three different separation distances.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116918262","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848381
Priya Donthireddy, Riya Reddy Nenturi, Harshitha Terupally, S. Chilukuri
This paper presents a coplanar waveguide fed microstrip antenna developed with the aim of providing multiband resonance with compact & simple structure. The CPW fed antenna is of size $18.2times 20text{mm}^{2}$ which is printed on the substrate (FR4- Epoxy) which has relative permittivity 4.4 and thickness of 1.6mm. The proposed antenna has a meander line structure and a rectangular slot along with L-shaped slots on the ground plane. The meander line structure is responsible for resonance at 2.62 GHz, the rectangular slot gives resonance at 5.37 GHz and the L-shaped slots are responsible for resonance at 4.43 GHz & 7.3 GHz. The proposed antenna has return loss greater than −10dB and shows good bandwidth characteristics at all four resonant frequencies. The proposed antenna has peak gain of 0.133dB/2.7dB/3.4dB/4.33dB at 2.622/4.43/5.37/7.3GHz frequencies respectively. The proposed antenna can be used for WLAN, WIFI, Narrowband & X-band applications.
{"title":"A CPW Fed Compact Multiband Antenna For Wireless Applications","authors":"Priya Donthireddy, Riya Reddy Nenturi, Harshitha Terupally, S. Chilukuri","doi":"10.1109/WAMS54719.2022.9848381","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848381","url":null,"abstract":"This paper presents a coplanar waveguide fed microstrip antenna developed with the aim of providing multiband resonance with compact & simple structure. The CPW fed antenna is of size $18.2times 20text{mm}^{2}$ which is printed on the substrate (FR4- Epoxy) which has relative permittivity 4.4 and thickness of 1.6mm. The proposed antenna has a meander line structure and a rectangular slot along with L-shaped slots on the ground plane. The meander line structure is responsible for resonance at 2.62 GHz, the rectangular slot gives resonance at 5.37 GHz and the L-shaped slots are responsible for resonance at 4.43 GHz & 7.3 GHz. The proposed antenna has return loss greater than −10dB and shows good bandwidth characteristics at all four resonant frequencies. The proposed antenna has peak gain of 0.133dB/2.7dB/3.4dB/4.33dB at 2.622/4.43/5.37/7.3GHz frequencies respectively. The proposed antenna can be used for WLAN, WIFI, Narrowband & X-band applications.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131043312","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9847781
V. Reddy, P. Verma, M. Thottappan
A dual-band Relativistic Backward Wave Oscillator (RBWO) has been designed and simulated under the lowest magnetic field using a finite difference time domain (FDTD) based 3D electromagnetic code. The dual-band oscillations were obtained by cascading two slow-wave structures (SWS) with the same transverse dimensions separated by a drift section. To reflect the dual-band microwave of the backward TM01 mode into a forward TM01 wave towards the collector, a rectangular resonant reflector (RR) was used. The effect of cyclotron and Cerenkov absorption on the dual-band frequency generation and average RF output power was presented to identify the operating magnetic field. An average RF output power ∼275 MW was predicted at both ∼3.6 GHz and ∼4.5 GHz with a magnetic field of ∼0.25 T.
{"title":"Design and PIC Simulation of Dual-band RBWO Under Low Magnetic Field Operation","authors":"V. Reddy, P. Verma, M. Thottappan","doi":"10.1109/WAMS54719.2022.9847781","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9847781","url":null,"abstract":"A dual-band Relativistic Backward Wave Oscillator (RBWO) has been designed and simulated under the lowest magnetic field using a finite difference time domain (FDTD) based 3D electromagnetic code. The dual-band oscillations were obtained by cascading two slow-wave structures (SWS) with the same transverse dimensions separated by a drift section. To reflect the dual-band microwave of the backward TM01 mode into a forward TM01 wave towards the collector, a rectangular resonant reflector (RR) was used. The effect of cyclotron and Cerenkov absorption on the dual-band frequency generation and average RF output power was presented to identify the operating magnetic field. An average RF output power ∼275 MW was predicted at both ∼3.6 GHz and ∼4.5 GHz with a magnetic field of ∼0.25 T.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132746119","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 : 2022-06-05DOI: 10.1109/WAMS54719.2022.9848159
Kalpana Muvvala, R. Reddy
In this paper, conversion of conventional probe fed cylindrical dielectric resonator antenna with linear polarization (LP) in to a circularly polarized dielectric antenna have been proposed. The two orthogonal modes are generated with a split along the line joining the centre to the edges of the cylinder by creating asymmetry. The proposed antenna has a resonance frequency of 4 GHz with a gain of 5dBi, a Return Loss (RL) bandwidth of 660 MHz (3790-4450 MHz) and Axial Ratio (AR) bandwidth of 200 MHz (3950-4150 MHz).
{"title":"Circularly Polarized Split Cylindrical Dielectric Antenna for Wireless Applications","authors":"Kalpana Muvvala, R. Reddy","doi":"10.1109/WAMS54719.2022.9848159","DOIUrl":"https://doi.org/10.1109/WAMS54719.2022.9848159","url":null,"abstract":"In this paper, conversion of conventional probe fed cylindrical dielectric resonator antenna with linear polarization (LP) in to a circularly polarized dielectric antenna have been proposed. The two orthogonal modes are generated with a split along the line joining the centre to the edges of the cylinder by creating asymmetry. The proposed antenna has a resonance frequency of 4 GHz with a gain of 5dBi, a Return Loss (RL) bandwidth of 660 MHz (3790-4450 MHz) and Axial Ratio (AR) bandwidth of 200 MHz (3950-4150 MHz).","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"28 17","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114017592","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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