Pub Date : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8073320
Ghanshyam Mishra, S. Sharma, J. Chieh, J. Rowland
A 16 × 32 series fed right-hand circular polarized (RHCP) phased array antenna is investigated at 85.4 GHz on a single layer substrate. The broadside patterns show co- and cross-polarization separation of around 18 dB and peak RHCP gain of 30 dBic. A 4-bit phase shifter is also designed in Cadence Virtuoso. The phase shifter states are applied in the simulation of 16 × 32 array to show the beamsteering of +/− 30° in one plane of the series fed array.
{"title":"W-band circular polarized series fed single plane beamsteering array antenna with 4-bit phase shifter for cubesat applications","authors":"Ghanshyam Mishra, S. Sharma, J. Chieh, J. Rowland","doi":"10.1109/APUSNCURSINRSM.2017.8073320","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073320","url":null,"abstract":"A 16 × 32 series fed right-hand circular polarized (RHCP) phased array antenna is investigated at 85.4 GHz on a single layer substrate. The broadside patterns show co- and cross-polarization separation of around 18 dB and peak RHCP gain of 30 dBic. A 4-bit phase shifter is also designed in Cadence Virtuoso. The phase shifter states are applied in the simulation of 16 × 32 array to show the beamsteering of +/− 30° in one plane of the series fed array.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124887652","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072917
N. Yardimci, S. Cakmakyapan, Soroosh Hemmati, M. Jarrahi
We present a novel optically-pumped terahertz antenna array, which offers much higher radiation efficiencies compared to the state-of-the-art. The key novelty of the device is tight confinement of the optical pump beam around the antenna elements. The tight light confinement is provided by a specially-designed plasmonic nano-antenna array and photo-absorbing semiconductor substrate, which operates as a reflector. We experimentally demonstrate a record-high pulsed terahertz radiation power of 4 mW and a radiation bandwidth of 0.1–5 THz, exhibiting one order of magnitude enhancement in radiation efficiency compared to the state-of-the-art.
{"title":"Boosting radiation efficiency of photoconductive nano-antennas through 3D light confinement","authors":"N. Yardimci, S. Cakmakyapan, Soroosh Hemmati, M. Jarrahi","doi":"10.1109/APUSNCURSINRSM.2017.8072917","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072917","url":null,"abstract":"We present a novel optically-pumped terahertz antenna array, which offers much higher radiation efficiencies compared to the state-of-the-art. The key novelty of the device is tight confinement of the optical pump beam around the antenna elements. The tight light confinement is provided by a specially-designed plasmonic nano-antenna array and photo-absorbing semiconductor substrate, which operates as a reflector. We experimentally demonstrate a record-high pulsed terahertz radiation power of 4 mW and a radiation bandwidth of 0.1–5 THz, exhibiting one order of magnitude enhancement in radiation efficiency compared to the state-of-the-art.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125883042","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072696
Ping Lu, Xue‐Song Yang, Bing-Zhong Wang
Time-Reversal (TR) technology is used in a Microwave Power Transmission (MPT) system with multiple unknown-position targets. In the TR-MPT system, the Time-Reversal Mirror (TRM) array receives detecting signals emitted from the targets and re-emits the time-reversed one convoluted with high energy electromagnetic waves, and then the electromagnetic wave energies are focused on the targets. Three cases with different target positions are studied. Compared to the energies received by the targets in a conventional MPT system, more energy can be received by the targets in the TR-MPT system. The results show that the TR technology can be used to improve the performance of a multi-target MPT system.
{"title":"Microwave power transmission for multi-targeting antenna using time-reversal technology","authors":"Ping Lu, Xue‐Song Yang, Bing-Zhong Wang","doi":"10.1109/APUSNCURSINRSM.2017.8072696","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072696","url":null,"abstract":"Time-Reversal (TR) technology is used in a Microwave Power Transmission (MPT) system with multiple unknown-position targets. In the TR-MPT system, the Time-Reversal Mirror (TRM) array receives detecting signals emitted from the targets and re-emits the time-reversed one convoluted with high energy electromagnetic waves, and then the electromagnetic wave energies are focused on the targets. Three cases with different target positions are studied. Compared to the energies received by the targets in a conventional MPT system, more energy can be received by the targets in the TR-MPT system. The results show that the TR technology can be used to improve the performance of a multi-target MPT system.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126028446","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8073312
Ramiro A. Ramirez, D. Lugo, T. Weller, Marcia Golmohamadi, J. Frolik
A 2.4 GHz single-piece additive manufactured tripolar antenna system is presented for integration with a commercially available wireless node. The antenna is 3D-printed using fused deposition modeling of ABS plastic and micro-dispensing of silver paste. Performance is evaluated in anechoic and highly reflective environments achieving a return loss greater than 15 dB at the desired frequency of operation and median and 1% link margin improvements through selection diversity of 4 dB and 11 dB, respectively.
{"title":"Additive manufactured tripolar antenna system for link improvement in high multipath environments","authors":"Ramiro A. Ramirez, D. Lugo, T. Weller, Marcia Golmohamadi, J. Frolik","doi":"10.1109/APUSNCURSINRSM.2017.8073312","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073312","url":null,"abstract":"A 2.4 GHz single-piece additive manufactured tripolar antenna system is presented for integration with a commercially available wireless node. The antenna is 3D-printed using fused deposition modeling of ABS plastic and micro-dispensing of silver paste. Performance is evaluated in anechoic and highly reflective environments achieving a return loss greater than 15 dB at the desired frequency of operation and median and 1% link margin improvements through selection diversity of 4 dB and 11 dB, respectively.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125442005","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072991
Jeffrey A. Maloney, D. Kwon, R. Janaswamy, S. D. Keller
A four element dual-linear polarized pin-fed patch antenna array is modeled as a controlled reception pattern array for anti-jam GPS applications. Full-wave electromagnetic simulation is used to refine the model and account for parasitic effects such as mutual coupling. The effects of using full-wave simulated antenna radiation patterns rather than analytically calculated patterns for calculation of weight vectors to implement null steering are explored.
{"title":"Comparison of radiation pattern modeling methods for GPS controlled reception pattern array","authors":"Jeffrey A. Maloney, D. Kwon, R. Janaswamy, S. D. Keller","doi":"10.1109/APUSNCURSINRSM.2017.8072991","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072991","url":null,"abstract":"A four element dual-linear polarized pin-fed patch antenna array is modeled as a controlled reception pattern array for anti-jam GPS applications. Full-wave electromagnetic simulation is used to refine the model and account for parasitic effects such as mutual coupling. The effects of using full-wave simulated antenna radiation patterns rather than analytically calculated patterns for calculation of weight vectors to implement null steering are explored.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126998860","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072579
Arun Kesavan, J. Zaid, T. Denidni
A wideband Frequency Selective Surfaces (FSS) which is used as a superstrate for a patch antenna to form a high-gain resonant cavity antenna is presented. This FSS consists of two metal structures separated by a substrate in the middle. It exhibits a wide stop-band in the 60GHz band. Further a panel of this FSS is implemented as a superstrate for antenna gain enhancement. It is observed that a broadband gain enhancement of 5.9dB with variations less than 2dB throughout the operating band is obtained.
{"title":"Wideband FSS superstrate for millimeter-wave antenna gain enhancement","authors":"Arun Kesavan, J. Zaid, T. Denidni","doi":"10.1109/APUSNCURSINRSM.2017.8072579","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072579","url":null,"abstract":"A wideband Frequency Selective Surfaces (FSS) which is used as a superstrate for a patch antenna to form a high-gain resonant cavity antenna is presented. This FSS consists of two metal structures separated by a substrate in the middle. It exhibits a wide stop-band in the 60GHz band. Further a panel of this FSS is implemented as a superstrate for antenna gain enhancement. It is observed that a broadband gain enhancement of 5.9dB with variations less than 2dB throughout the operating band is obtained.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115446490","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8073307
P. Paul, K. Kandasamy, M. Sharawi
A compact square shaped microstrip triband slot antenna is proposed. Two Split Ring Resonators (SRR) of the same configuration are loaded at one edge of the slot in a back to back orientation. The other edge of the slot is displaced with two 180° rotated SRR's with multiple slits. The additional bands are obtained from the resonance properties of the loaded SRR's. The antenna is simulated and measured. The resonance frequencies obtained are 2.7 GHz, 4.3 GHz and 4.7 GHz. A minimum bandwidth of 130 MHz is achieved.
{"title":"SRR loaded slot antenna for multiband applications","authors":"P. Paul, K. Kandasamy, M. Sharawi","doi":"10.1109/APUSNCURSINRSM.2017.8073307","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073307","url":null,"abstract":"A compact square shaped microstrip triband slot antenna is proposed. Two Split Ring Resonators (SRR) of the same configuration are loaded at one edge of the slot in a back to back orientation. The other edge of the slot is displaced with two 180° rotated SRR's with multiple slits. The additional bands are obtained from the resonance properties of the loaded SRR's. The antenna is simulated and measured. The resonance frequencies obtained are 2.7 GHz, 4.3 GHz and 4.7 GHz. A minimum bandwidth of 130 MHz is achieved.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115541840","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072585
Daniel Schemmel, P. Nayeri
A high level design of a smart wireless energy harvesting system is presented. The energy harvesting system is designed to be adaptive to varying loads and input powers. The system also utilizes a phased array antenna to adaptively scan the beam for maximum power tracking. Simulated and experimental results for the major subsystems of the harvester are presented.
{"title":"A smart wireless energy harvesting system with adaptive beamforming and power management","authors":"Daniel Schemmel, P. Nayeri","doi":"10.1109/APUSNCURSINRSM.2017.8072585","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072585","url":null,"abstract":"A high level design of a smart wireless energy harvesting system is presented. The energy harvesting system is designed to be adaptive to varying loads and input powers. The system also utilizes a phased array antenna to adaptively scan the beam for maximum power tracking. Simulated and experimental results for the major subsystems of the harvester are presented.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115994599","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8073109
S. Koziel, S. Ogurtsov
We present a study that aims towards a systematic computer-aided design of corporate feeds (CFs) realizing required nonuniform amplitude excitations of microstrip antenna arrays. In this work, Chebyshev linear arrays are considered. We start from identifying candidate CFs. Numerical optimization of the fast CFs models allows for identifying the best architecture in terms of accuracy of realizing the required amplitude excitations, as well as finding the set of power split ratios of the junctions within the CF. The junctions of the best CF architecture are then implemented and tuned using a discrete full-wave modeler (solver). CF validation and tuning is also conducted at the full-wave simulation level. Finally, the entire aperture-feed circuit is validated with simulations. Our approach is illustrated using twelve element Chebyshev arrays where the quantities of interest are sidelobe level and reflection coefficient.
{"title":"On systematic design of corporate feeds for chebyshev microstrip linear antenna arrays","authors":"S. Koziel, S. Ogurtsov","doi":"10.1109/APUSNCURSINRSM.2017.8073109","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073109","url":null,"abstract":"We present a study that aims towards a systematic computer-aided design of corporate feeds (CFs) realizing required nonuniform amplitude excitations of microstrip antenna arrays. In this work, Chebyshev linear arrays are considered. We start from identifying candidate CFs. Numerical optimization of the fast CFs models allows for identifying the best architecture in terms of accuracy of realizing the required amplitude excitations, as well as finding the set of power split ratios of the junctions within the CF. The junctions of the best CF architecture are then implemented and tuned using a discrete full-wave modeler (solver). CF validation and tuning is also conducted at the full-wave simulation level. Finally, the entire aperture-feed circuit is validated with simulations. Our approach is illustrated using twelve element Chebyshev arrays where the quantities of interest are sidelobe level and reflection coefficient.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116050473","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072515
J. Choo, H. Park, Y. Cho, Yong-Hwa Kim, Ho-Joong Choi
This paper represents quasi-static analysis of a slotted coaxial cable used in a nuclear power plant. We assume that a coaxial cable is ruptured in the shape of an infinite axial slot. We employ mode-matching method to interpret a slotted coaxial with high efficiency in computation. After performing potential formulation and enforcing boundary conditions, we extract the distributions of potential and electric field to check how much adjacent objects are electromagnetically interfered through the axial slot.
{"title":"Quasi-static analysis of slotted coaxial cable","authors":"J. Choo, H. Park, Y. Cho, Yong-Hwa Kim, Ho-Joong Choi","doi":"10.1109/APUSNCURSINRSM.2017.8072515","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072515","url":null,"abstract":"This paper represents quasi-static analysis of a slotted coaxial cable used in a nuclear power plant. We assume that a coaxial cable is ruptured in the shape of an infinite axial slot. We employ mode-matching method to interpret a slotted coaxial with high efficiency in computation. After performing potential formulation and enforcing boundary conditions, we extract the distributions of potential and electric field to check how much adjacent objects are electromagnetically interfered through the axial slot.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116099527","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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