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2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)最新文献

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Grating Sidelobe Suppression in Single-Layer Center-Feed Waveguide Antenna Array at 38 GHz 38 GHz单层中心馈电波导天线阵列光栅旁瓣抑制
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9887098
Wenbo Liu, Y. Tsunemitsu
{"title":"Grating Sidelobe Suppression in Single-Layer Center-Feed Waveguide Antenna Array at 38 GHz","authors":"Wenbo Liu, Y. Tsunemitsu","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887098","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887098","url":null,"abstract":"In this paper, we optimize the width of a slotted waveguide to minimize the distance between the adjacent diagonal slots for grating sidelobe suppression. By solving the tradeoff between the waveguide width and the guided wavelength. We find the waveguide with a width of 5-mm has optimal performance. Furthermore, by shrinking the waveguide width to 5 mm, we obtain a perfect single-peak radiation pattern in E-plane and an extremely high antenna efficiency (89.4%). Finally, the corresponding directive gain can be increased to 27.9 dBi.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122663387","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}
引用次数: 1
Dual-Differential SIW-Fed Leaky-wave Antenna with Dual-Polarization for Full-Duplex Applications 全双工应用的双极化双差分单波馈电漏波天线
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9886195
I. Shahzadi, M. Kuznetcov, D. Comite, S. Podilchak, P. Baccarelli, P. Burghignoli, A. Galli, M. Sellathurai, T. Ratnarajah
{"title":"Dual-Differential SIW-Fed Leaky-wave Antenna with Dual-Polarization for Full-Duplex Applications","authors":"I. Shahzadi, M. Kuznetcov, D. Comite, S. Podilchak, P. Baccarelli, P. Burghignoli, A. Galli, M. Sellathurai, T. Ratnarajah","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886195","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886195","url":null,"abstract":"This paper presents a dual-polarized leaky-wave antenna (LWA) for full-duplex (FD) communication applications. The design is based on slots fed by substrate integrated waveguides (SIWs) with differential feeding. This SIW feeding and slot arrangement, which realizes two orthogonal and linear polarizations in the far field, is then used to excite leaky-wave (LW) fields on a superstrate constituted by a printed partially reflective surface (PRS). The LWA provides -10 dB impedance matching from 24 to 28 GHz (more than 15%), with isolation levels greater than 50 dB and with realized gains of 16 dBi. The proposed LWA is also compact, low profile, wideband, and offers a convenient feeding approach making the design useful for FD communications, dual-polarization, and 5G systems.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"353 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122791642","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}
引用次数: 1
Reconstruction of HRRP with missing data and noise 缺失数据和噪声的HRRP重建
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9887193
I. Jouny
{"title":"Reconstruction of HRRP with missing data and noise","authors":"I. Jouny","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887193","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887193","url":null,"abstract":"This paper applies a recently developed technique for Bayesian reconstruction of Fourier pairs to reconstruct the impulse response (or the High Range Resolution Profile-HRRP) of a stepped-frequency radar target assuming missing data (backscatter), and assuming additive Gaussian noise corrupting the data. This technique is very successful at recovering HRRP of a target with significant amount of backscatter missing. The reconstructed data is used for target identification with performance nearly close to the optimal classifier.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114299110","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}
引用次数: 1
Intelligent Remote Powering System With PTE Auto-Balancing For a Wireless and Batteryless EEG Cap 用于无线无电池脑电图帽的PTE自动平衡智能远程供电系统
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9886950
M. SharafiMasouleh, M. Sajedi, M. Adjouadi
{"title":"Intelligent Remote Powering System With PTE Auto-Balancing For a Wireless and Batteryless EEG Cap","authors":"M. SharafiMasouleh, M. Sajedi, M. Adjouadi","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886950","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886950","url":null,"abstract":"This work presents a fully battery-less and wireless (untethered) EEG readout cap. The powering system is equipped with a highly efficient and compact power transmitter mosaicked by an array of 8×11 Tx resonators in a certain pattern operating at the lowest ISM band of 6.78 MHz. The front-end’s power receiver block Rx includes multi-resonators mounted all-around an EEG cap that can be worn by a subject. Furthermore, considering the subject’s head which could assume different positions, a well-designed positioning system and an intelligent feeding setup are developed to balance the efficiency drop due to misalignment and to involve the most associated resonators with the powering scenario with the potential of switching off the extraneous resonators that are not engaged with Transmit and Receive (Tx-Rx) power.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122017158","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}
引用次数: 0
A Low Back-lobe Miniaturized Circular Polarized Antenna with Spiral Elements 带螺旋元件的低后瓣小型化圆极化天线
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9886871
Hiroaki Sakamoto, Hidetoshi Makimura, K. Nishimoto, Y. Nishioka, Y. Inasawa
{"title":"A Low Back-lobe Miniaturized Circular Polarized Antenna with Spiral Elements","authors":"Hiroaki Sakamoto, Hidetoshi Makimura, K. Nishimoto, Y. Nishioka, Y. Inasawa","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886871","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886871","url":null,"abstract":"In this paper, we propose a method to decrease back-lobe radiation of the small Circular Polarized (CP) antenna. The proposed CP antenna is composed of four antenna elements arranged in a rotational symmetry at 90 degrees on the ground, which are excited with the same amplitude and 90 degrees phase difference. Each antenna element is formed by a spiral antenna branched from the near the middle of an inverted-L antenna. From the result of simulation, backward radiation of the proposed CP antenna can be decreased by 13 dB due to the addition of the spiral elements.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122070985","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}
引用次数: 0
A Comparison Between Multiple Launch Angle Method (MLAM) and Single Launch Angle Refractivity-from-Clutter (RFC) Technique 多发射角法(MLAM)与单发射角杂波折射率法(RFC)的比较
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9886917
DeGrafth A. Palmore, C. Yardim
{"title":"A Comparison Between Multiple Launch Angle Method (MLAM) and Single Launch Angle Refractivity-from-Clutter (RFC) Technique","authors":"DeGrafth A. Palmore, C. Yardim","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886917","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886917","url":null,"abstract":"Lower atmospheric ducts in ocean and littoral regions can be retrieved using sea surface backscattering. This technique is called Refractivity-from-Clutter (RFC). Improving currently available RFC techniques is an active area of research. The duct effects on an EM signal depends on the angle that the signal is launched. Hence, using multiple launch angles might be a good way to improve the RFC inversion technique. This paper is a theoretical study of how using multiple launch angles in RFC inversion can improve the duct estimation with respect to using a single launch angle.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122147492","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}
引用次数: 1
Investigation of the Sum-Difference Beampatterns Using the Quadratic U Distribution 二次U型分布下和差波束方向图的研究
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9886771
K. Buchanan, Sara Wheeland
{"title":"Investigation of the Sum-Difference Beampatterns Using the Quadratic U Distribution","authors":"K. Buchanan, Sara Wheeland","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886771","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886771","url":null,"abstract":"This work examines the quadratic U distribution, a unique convex quadratic function for the application of distributed antenna arrays. The analysis applies a fitting phase coefficient for the elements, such that the radiated signal power of each element is coherently added in the far-field region of a specified target direction with net destructive interference occurring in all other regions to suppress sidelobe behavior. The analysis also applies characteristic modal solutions in which element radiators are used independently to deliver both sum and difference beams. Sum-difference radiation patterns are generated and analyzed for suitability in applications such as amplitude monopulse scanning, the direction of arrival estimation, and target tracking. We observe that the inherent randomness of the antenna array distribution alleviates typical half-wavelength spacing requirements for grating-lobe-free scanning. Tapering of the pattern is accomplished by confining the distribution to a quadratic U or convex probability topology.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116751560","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}
引用次数: 0
Two Element UWB Array Antenna for 5G Communications, WiFi-5 and WiFi-6 Applications 用于5G通信、WiFi-5和WiFi-6应用的双元UWB阵列天线
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9886746
Yazan M. Al Hyasat, Yanal S. Faouri, Dia Abualnadi, M. Abdelazeez
{"title":"Two Element UWB Array Antenna for 5G Communications, WiFi-5 and WiFi-6 Applications","authors":"Yazan M. Al Hyasat, Yanal S. Faouri, Dia Abualnadi, M. Abdelazeez","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886746","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886746","url":null,"abstract":"In this paper, a new two-element ultra-wideband array antenna has been designed to serve 5G communications, WiFi-5, and WiFi-6. This design has been introduced by using an array of two identical patch antennas each one with a circular slot along with an E-shaped parasitic element placed in the center of the circular slot. Also, a partial ground plane has been used to enhance the bandwidth of the antenna. The proposed antenna has an operating band from 2.45 GHz to 14.55 GHz that covers multiple 5G communication bands and fulfill the complete bandwidth of WiFi-5 and WiFi-6 applications. The proposed antenna achieves a peak gain of 6.84 dB and maximum radiation efficiency of 92.7 %.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129691739","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}
引用次数: 3
Continuous Full-Azimuth Beam Steering using Mode Synchronization in Dual-Mode Circular Waveguides 双模圆波导中使用模式同步的连续全方位光束导向
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9887153
Aditya Varma Muppala, K. Sarabandi
{"title":"Continuous Full-Azimuth Beam Steering using Mode Synchronization in Dual-Mode Circular Waveguides","authors":"Aditya Varma Muppala, K. Sarabandi","doi":"10.1109/AP-S/USNC-URSI47032.2022.9887153","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887153","url":null,"abstract":"A new concept for beam steering using a dual-mode circular waveguide is proposed. Two antennas are designed using this concept to achieve full-azimuth beam steering over a narrow bandwidth. The idea is to use the first two non-degenerate circular waveguide modes (TE11 and TM01) and synchronize them to achieve a desired interference pattern on the waveguide cross section. Slots are then introduced into the waveguide to allow radiation along the azimuthal direction where the two modes add constructively. Using an orthomode transducer, the polarization of the TE11 mode is rotated, by modulating the amplitude of the two signals at each port, to achieve full-azimuth beam steering. This technique is therefore fundamentally different from the traditional methods of beam steering that use mechanical control or phase control.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129869252","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}
引用次数: 0
RF-induced heating evaluation for patients during MRI breast imaging 磁共振乳房成像过程中患者的射频加热评价
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI: 10.1109/AP-S/USNC-URSI47032.2022.9886774
Xiaolin Yang, Jianfeng Zheng, Ji Chen
{"title":"RF-induced heating evaluation for patients during MRI breast imaging","authors":"Xiaolin Yang, Jianfeng Zheng, Ji Chen","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886774","DOIUrl":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886774","url":null,"abstract":"This paper investigates the radiofrequency (RF)-induced heating for patients undergoing Magnetic resonance imaging (MRI) breast imaging. One supine and three prone posture models are developed based on the posable female adult model. The electromagnetic fields inside these four posture models are evaluated numerically. The simulated results show that the peak averaged specific absorption rate over 1 gram has no substantial difference among the four posture models. However, the electric field distributions in the coronal slice for the prone posture models are higher than from supine posture model. It is observed that there is no evidence indicating the RF-induced heating hazards for patients during MRI breast imaging. However, higher electric field distributions in the spinal region can potentially lead to RF-induced heating concerns for patients with spinal implants.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128204504","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}
引用次数: 0
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