Pub Date : 2021-12-17DOI: 10.1109/imarc49196.2021.9714522
S. Khanal, S. van Berkel, S. Rahiminejad, C. Jung-Kubiak, A. Maestrini, G. Chattopadhyay
At submillimeter-wave frequencies, due to the nonavailability of low-loss phase shifters, electronic antenna beam scanning is difficult to realize. Traditionally, power-hungry and bulky motors are used to mechanically scan the antenna beam. At lower-frequencies, phased array antennas are most commonly used where low-loss phase shifters are used with the array elements to accomplish beam steering. However, development of similar phased array antennas at submillimeter-waves has been challenging. Recently, we have developed a low-loss microelectromechanical systems (MEMS) based phased shifter in the 500-750 GHz band. In this work, we present a submillimeter-wave phased array antenna system with a cavity-backed double slot antenna architecture using the MEMS-based phase shifters. To demonstrate the concept, we developed two arrays: first one is a 8$times$1 linear antenna array with a fixed waveguide feeding network that achieved ±20°. beam scanning, 18 dB directivity, and less than 1 dB scan loss over the design frequency of 500.570 GHz. The second one is a 4 $times$ 1 linear antenna array with integrated MEMS-based phase shifters on each array element, achieving 15 dB directivity and capable of dynamic beam scanning over a range of ±9° All the plots presented are simulated results since the parts are currently being fabricated. We hope to have access to our assembly and measurement facilities over the next few months and present measured performances at the conference.
{"title":"Demonstration of a 1-D Submillimeter-Wave Phased Array with MEMS Phase Shifters","authors":"S. Khanal, S. van Berkel, S. Rahiminejad, C. Jung-Kubiak, A. Maestrini, G. Chattopadhyay","doi":"10.1109/imarc49196.2021.9714522","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714522","url":null,"abstract":"At submillimeter-wave frequencies, due to the nonavailability of low-loss phase shifters, electronic antenna beam scanning is difficult to realize. Traditionally, power-hungry and bulky motors are used to mechanically scan the antenna beam. At lower-frequencies, phased array antennas are most commonly used where low-loss phase shifters are used with the array elements to accomplish beam steering. However, development of similar phased array antennas at submillimeter-waves has been challenging. Recently, we have developed a low-loss microelectromechanical systems (MEMS) based phased shifter in the 500-750 GHz band. In this work, we present a submillimeter-wave phased array antenna system with a cavity-backed double slot antenna architecture using the MEMS-based phase shifters. To demonstrate the concept, we developed two arrays: first one is a 8$times$1 linear antenna array with a fixed waveguide feeding network that achieved ±20°. beam scanning, 18 dB directivity, and less than 1 dB scan loss over the design frequency of 500.570 GHz. The second one is a 4 $times$ 1 linear antenna array with integrated MEMS-based phase shifters on each array element, achieving 15 dB directivity and capable of dynamic beam scanning over a range of ±9° All the plots presented are simulated results since the parts are currently being fabricated. We hope to have access to our assembly and measurement facilities over the next few months and present measured performances at the conference.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129486013","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714560
Soumik Dey, Sukomal Dey, S. Koul
This paper presents a composite right-left hand (CRLH) transmission line (TL) inspired 5-bit digital phase shifter. The proposed phase shifter comprises three cascaded CRLH unit cells with overall eight PIN diodes are mounted on the horizontal and vertical outer fingers of the element. A systematic design approach is adopted to obtain phase shifts of 5.656,11.317,22.248,44.491, and 89.687 degrees with respect to a reference line at frequency 10 GHz. The proposed design possesses the advantages of low insertion loss $(lt 2.16mathrm{~dB})$ and return loss $gt 12mathrm{~dB}$ with high power handling capability over the frequency range of 9.9-10.1 GHz.
{"title":"Novel 5-bit Phase Shifter using CRLH Transmission Line with Interdigital Capacitor and Shorted Stubs","authors":"Soumik Dey, Sukomal Dey, S. Koul","doi":"10.1109/imarc49196.2021.9714560","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714560","url":null,"abstract":"This paper presents a composite right-left hand (CRLH) transmission line (TL) inspired 5-bit digital phase shifter. The proposed phase shifter comprises three cascaded CRLH unit cells with overall eight PIN diodes are mounted on the horizontal and vertical outer fingers of the element. A systematic design approach is adopted to obtain phase shifts of 5.656,11.317,22.248,44.491, and 89.687 degrees with respect to a reference line at frequency 10 GHz. The proposed design possesses the advantages of low insertion loss $(lt 2.16mathrm{~dB})$ and return loss $gt 12mathrm{~dB}$ with high power handling capability over the frequency range of 9.9-10.1 GHz.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128346477","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714662
Archana Rajput, K. Saurav
A nine port antenna with pattern and polarization diversity characteristics is proposed. The antenna exhibits an overlapping impedance bandwidth of $1.9%(3.64-3.71mathrm{GHz})$ corresponding to the excitation of the ports. The antenna design consists of four shared aperture quasi-Yagi elements and one patch antenna element. The four quasi-Yagi shared apertures oriented along the four edges of a square copper plate provides the four end-fire and four omni-directional patterns, leading to the design of pattern and polarization diversity MIMO antenna. Furthermore, the patch antenna sharing the common ground plane with radiation pattern.
{"title":"A Nine Port Antenna with Polarization and Pattern Diversity for MIMO Application","authors":"Archana Rajput, K. Saurav","doi":"10.1109/imarc49196.2021.9714662","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714662","url":null,"abstract":"A nine port antenna with pattern and polarization diversity characteristics is proposed. The antenna exhibits an overlapping impedance bandwidth of $1.9%(3.64-3.71mathrm{GHz})$ corresponding to the excitation of the ports. The antenna design consists of four shared aperture quasi-Yagi elements and one patch antenna element. The four quasi-Yagi shared apertures oriented along the four edges of a square copper plate provides the four end-fire and four omni-directional patterns, leading to the design of pattern and polarization diversity MIMO antenna. Furthermore, the patch antenna sharing the common ground plane with radiation pattern.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130642451","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714574
D. Prasad, H. V. Singh, S. Tripathi, P. Paltani
In this paper, a new design for a Full-Duplex microstrip patch antenna is introduced. It consists of two closely located rectangular microstrip patch antennas, and these radiating patches give radiation bidirectionally. The isolation between the interports of the Full-Duplex antenna is obtained by using a technique called frequency space filtering and two bowtie-shaped defected ground structure (DGS) based bandpass filters (BPFs) in the ground plane beneath the microstrip feed lines from the transmitting and receiving ports of the antenna. The duplex antenna attains the isolation of $21mathrm{~dB}$ at the transmitting frequency $f_{t}=1.9mathrm{GHz}$ and $34mathrm{~dB}$ at the receiving frequency $f_{r}=2.78mathrm{GHz}$ and transmit-receive frequency spacing frequency $f_{r}=2.78$ GHz and transmit-receive frequency spacing ratio of $r=0.37$. The proposed antenna can operate well at different frequency bands, particularly between 2 and 3GHz by varying the dimensions of the DGS BPF because its resonance frequency depends on scaling the size of the structure. Furthermore, the incorporated BPFs have a reasonable degree of selectivity and sharp frequency cut-off characteristics.
{"title":"Full-Duplex Antenna Using DGS Based BPF","authors":"D. Prasad, H. V. Singh, S. Tripathi, P. Paltani","doi":"10.1109/imarc49196.2021.9714574","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714574","url":null,"abstract":"In this paper, a new design for a Full-Duplex microstrip patch antenna is introduced. It consists of two closely located rectangular microstrip patch antennas, and these radiating patches give radiation bidirectionally. The isolation between the interports of the Full-Duplex antenna is obtained by using a technique called frequency space filtering and two bowtie-shaped defected ground structure (DGS) based bandpass filters (BPFs) in the ground plane beneath the microstrip feed lines from the transmitting and receiving ports of the antenna. The duplex antenna attains the isolation of $21mathrm{~dB}$ at the transmitting frequency $f_{t}=1.9mathrm{GHz}$ and $34mathrm{~dB}$ at the receiving frequency $f_{r}=2.78mathrm{GHz}$ and transmit-receive frequency spacing frequency $f_{r}=2.78$ GHz and transmit-receive frequency spacing ratio of $r=0.37$. The proposed antenna can operate well at different frequency bands, particularly between 2 and 3GHz by varying the dimensions of the DGS BPF because its resonance frequency depends on scaling the size of the structure. Furthermore, the incorporated BPFs have a reasonable degree of selectivity and sharp frequency cut-off characteristics.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129035944","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714653
Xiaoqiang Gu, J. V. de Almeida, Ke Wu
Ambient radiofrequency (RF) energy harvester scavenges RF power “wastes” and converts them into usable dc output. Considering the limited output of an ambient RF energy harvesting device, this scheme is highly suitable for low-power and low-duty-cycle wireless sensing applications. This work presents a battery-fiee multi-function sensor platform based on a multi-stage rectifier utilizing ambient RF energy. An analytical model with equivalent circuits is developed to analyze and optimize multistage rectifiers. Guided by the theoretical analysis, a 5-stage rectifier is realized. A final experimental demonstration shows that the multi-function sensor platform can sustain itself with the power supply from the 5 -stage rectifier harvesting ambient RF energy at a practical power level.
{"title":"Multi-Stage Rectifier Enabled Battery-Free Sensor Platform Utilizing Ambient RF Energy","authors":"Xiaoqiang Gu, J. V. de Almeida, Ke Wu","doi":"10.1109/imarc49196.2021.9714653","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714653","url":null,"abstract":"Ambient radiofrequency (RF) energy harvester scavenges RF power “wastes” and converts them into usable dc output. Considering the limited output of an ambient RF energy harvesting device, this scheme is highly suitable for low-power and low-duty-cycle wireless sensing applications. This work presents a battery-fiee multi-function sensor platform based on a multi-stage rectifier utilizing ambient RF energy. An analytical model with equivalent circuits is developed to analyze and optimize multistage rectifiers. Guided by the theoretical analysis, a 5-stage rectifier is realized. A final experimental demonstration shows that the multi-function sensor platform can sustain itself with the power supply from the 5 -stage rectifier harvesting ambient RF energy at a practical power level.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125718231","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714612
Parthasarathi Samanta, R. Gopika, C. Saha
An efficient design of rectenna at 24GHz which can tolerate power dependent load variation and provide better performance over a wider range of loads for wireless power transfer application, is proposed in this article. The proposed design involves class-F structure to reduce the diode conduction loss over a cycle, and a transmission line resistance compression network (TLRCN) to efficiently deal with the load variation. To reduce the losses further, the concept of on-antenna power combining is explored and one single element dual port microstrip loop antenna having peak gain of more than 5 dBi is designed at 24GHz. A peak efficiency of 66% is achieved at 19dBm input power for the combined rectenna at 24GHz. For a resistive load variation of $(30-120)Omega$, the final input impedance variation of (38-57) $Omega$ is observed.
{"title":"Design and Development of High Efficiency Rectenna at 24 GHz for Wireless Power Transfer","authors":"Parthasarathi Samanta, R. Gopika, C. Saha","doi":"10.1109/imarc49196.2021.9714612","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714612","url":null,"abstract":"An efficient design of rectenna at 24GHz which can tolerate power dependent load variation and provide better performance over a wider range of loads for wireless power transfer application, is proposed in this article. The proposed design involves class-F structure to reduce the diode conduction loss over a cycle, and a transmission line resistance compression network (TLRCN) to efficiently deal with the load variation. To reduce the losses further, the concept of on-antenna power combining is explored and one single element dual port microstrip loop antenna having peak gain of more than 5 dBi is designed at 24GHz. A peak efficiency of 66% is achieved at 19dBm input power for the combined rectenna at 24GHz. For a resistive load variation of $(30-120)Omega$, the final input impedance variation of (38-57) $Omega$ is observed.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126060479","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714623
Ayush Kumar, M. Mandal, Pallab Kumar Gogoi
A non-coherent passive six-port receiver system is presented for accurate amplitude, phase and frequency measurement of a RF signal. The system uses the six-port network and a new wideband phase delay line with known phase profile. The phase delay unit uses a number of openstubs connected to a microstrip line. Detail design steps of the phase delay line is presented. The whole receiver is fabricated in PCB technology. No local oscillator or DC biasing are used. Thus, it is an all-passive system, which does not require any power source. It can be used as a real time and fast demodulator for both analog and digital signals.
{"title":"An All Passive Compact Six-port Receiver","authors":"Ayush Kumar, M. Mandal, Pallab Kumar Gogoi","doi":"10.1109/imarc49196.2021.9714623","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714623","url":null,"abstract":"A non-coherent passive six-port receiver system is presented for accurate amplitude, phase and frequency measurement of a RF signal. The system uses the six-port network and a new wideband phase delay line with known phase profile. The phase delay unit uses a number of openstubs connected to a microstrip line. Detail design steps of the phase delay line is presented. The whole receiver is fabricated in PCB technology. No local oscillator or DC biasing are used. Thus, it is an all-passive system, which does not require any power source. It can be used as a real time and fast demodulator for both analog and digital signals.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122473145","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714707
Gouri Sharma, Anshul Gupta
A four-port cylindrical dielectric resonator antenna (CDRA) for WLAN/WiMAX has been described in this letter. Four cylindrical dielectric resonator antennas are placed on the upper part of the substrate and are fed with an aid of a rectangular aperture such that any two adjacent radiating antennas are orthogonal to each other. The antenna works in the frequency range of 5.03 to 5.92GHz. At the resonant frequency, the reduced mutual coupling is depicted to be better than -30dB. The diversity performance of the stated radiator is also found within optimal limits.
{"title":"Four Port Multiple Input Multiple Output DRA for WLAN/WiMAX Applications","authors":"Gouri Sharma, Anshul Gupta","doi":"10.1109/imarc49196.2021.9714707","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714707","url":null,"abstract":"A four-port cylindrical dielectric resonator antenna (CDRA) for WLAN/WiMAX has been described in this letter. Four cylindrical dielectric resonator antennas are placed on the upper part of the substrate and are fed with an aid of a rectangular aperture such that any two adjacent radiating antennas are orthogonal to each other. The antenna works in the frequency range of 5.03 to 5.92GHz. At the resonant frequency, the reduced mutual coupling is depicted to be better than -30dB. The diversity performance of the stated radiator is also found within optimal limits.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125116394","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714583
Anirudh Kumar, Priyanka Pai, V. Kavitha, S. Prashanth
This paper presents the design features, simulation & implementation of a X-band Pulsed Power Amplifier and down converter using double down conversion technique in a single mechanical housing. This module has been designed & tested for various features like high output power, high gain in PA section & low noise figure, excellent image rejection, high gain, MSTC, AGC & BITE check in Down converter section. Module is designed, fabricated & tested successfully and is meeting all the required specifications. A close match is achieved between the simulated & tested results. Mean Time Between Failure (MTBF) is predicted to be 13530Hrs.
{"title":"Design of X-Band Pulsed Power Amplifier & Downconverter","authors":"Anirudh Kumar, Priyanka Pai, V. Kavitha, S. Prashanth","doi":"10.1109/imarc49196.2021.9714583","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714583","url":null,"abstract":"This paper presents the design features, simulation & implementation of a X-band Pulsed Power Amplifier and down converter using double down conversion technique in a single mechanical housing. This module has been designed & tested for various features like high output power, high gain in PA section & low noise figure, excellent image rejection, high gain, MSTC, AGC & BITE check in Down converter section. Module is designed, fabricated & tested successfully and is meeting all the required specifications. A close match is achieved between the simulated & tested results. Mean Time Between Failure (MTBF) is predicted to be 13530Hrs.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134518879","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 : 2021-12-17DOI: 10.1109/imarc49196.2021.9714652
R. Kalyan, B. Ghosh, M. K. Sreekavya, Kumar Harshit, K. R. Bindu, Suvarna Lankapalli
This paper presents the design methodology of a highly efficient 25W C-band power amplifier in hybrid technology using Gallium Nitride device. The proposed amplifier is designed and developed for prospective use in the telemetry application of satellite communication. Over a frequency range of 3.95 GHz to 4.35 GHz, the measured output power is more than 43.9 dBm which is well matching with the simulation results. Measured drain efficiency and linear gain are around 65% and 11.5 dB, respectively in the desired frequency range.
{"title":"Design of a 25W C-Band Power Amplifier for Satellite Communication","authors":"R. Kalyan, B. Ghosh, M. K. Sreekavya, Kumar Harshit, K. R. Bindu, Suvarna Lankapalli","doi":"10.1109/imarc49196.2021.9714652","DOIUrl":"https://doi.org/10.1109/imarc49196.2021.9714652","url":null,"abstract":"This paper presents the design methodology of a highly efficient 25W C-band power amplifier in hybrid technology using Gallium Nitride device. The proposed amplifier is designed and developed for prospective use in the telemetry application of satellite communication. Over a frequency range of 3.95 GHz to 4.35 GHz, the measured output power is more than 43.9 dBm which is well matching with the simulation results. Measured drain efficiency and linear gain are around 65% and 11.5 dB, respectively in the desired frequency range.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133976901","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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