R. Karimian, M. D. Ardakani, S. Ahmadi, M. Zaghloul
{"title":"Design of a Non-Reciprocal Reconfigurable Phase Shifter for Phased Array Applications","authors":"R. Karimian, M. D. Ardakani, S. Ahmadi, M. Zaghloul","doi":"10.23919/USNC-URSINRSM51531.2021.9336505","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336505","url":null,"abstract":"A novel non-reciprocal reconfigurable phased shifter feed network is proposed in this paper. The feed network is a one-input-four-output network for the steerable antenna application. The proposed novel concept has two main paths for transmitter and receiver in which each path has a different independent phase shifter. Varactor diodes with different bias voltages have been used in this study to generate different progressive phase shifts for transmitter and receiver. The measurement results show nonreciprocity results as well as reconfigurability for each output.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114063799","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}
James D. Hunter, Shengxuan Xia, Aaron Harmon, Ahmed Hassan, V. Khilkevich, D. Beetner
{"title":"Modeling and Statistical Characterization of Electromagnetic Coupling to Electronic Devices","authors":"James D. Hunter, Shengxuan Xia, Aaron Harmon, Ahmed Hassan, V. Khilkevich, D. Beetner","doi":"10.23919/USNC-URSINRSM51531.2021.9336496","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336496","url":null,"abstract":"The electromagnetic susceptibility of electronic devices varies substantially from one device to another. The objective of the following study is to better understand the statistical variation in coupling to printed circuit boards (PCBs) and their attached cables, and thus their susceptibility. Models are being developed to estimate coupling to wiring harnesses and PCB traces. The voltage coupled depends on the frequency, angle of arrival, and polarization of the incident wave, as well as the characteristics of the receiving structure. The statistical characteristics of the coupled voltage with variations in the arrival angle, polarization and typical variations in the receiving structure (e.g. length of wiring harness, size of connector, board size, trace location, etc.) are being found through simulations. These variations in coupling were used to predict the frequency content of the incident wave that is most likely to cause an over voltage or current within the studied parameter space. Existing models explore differential mode coupling to traces and common-mode coupling to harnesses. Differential mode models of the harness and connectors are under development. These and the previous modeling blocks ultimately create a “toolbox” with which estimate the statistical variation in coupling to a variety of devices.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125783387","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}
{"title":"60-GHz-band MHMIC Frequency Multiplier Module for Multi-port Interferometer Receivers","authors":"M. D. Ardakani, R. Karimian, S. Tatu","doi":"10.23919/USNC-URSINRSM51531.2021.9336500","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336500","url":null,"abstract":"In this paper, a 60-GHz-band miniaturized LO frequency multiplier module is presented. The ×4 frequency multiplier is appropriately designed as a LO chain to cover the entire band and provide enough power for mm-wave multiport receivers. To obtain a high suppression harmonic parameter, two compact bandpass filters are designed and placed after each multiplier. The miniaturized module with competitive parameters is fabricated and tested successfully through an MHMIC structure layout design.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127555683","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}
{"title":"Electromagnetic Modeling of Thin Wire with Multilayered Coating in Layered Media","authors":"Chaoxian Qi, Shubin Zeng, Xuqing Wu, Jiefu Chen, Jiuping Chen, Yueqin Huang","doi":"10.23919/USNC-URSINRSM51531.2021.9336486","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336486","url":null,"abstract":"An efficient numerical method is presented to simulate the thin wire structures with multilayered coating in the horizontally layered media. A target application can be underground wireless communication using electromagnetic telemetry (EMT), which consists of a long metal drill string treated as a thin wire and a gap near the drill bit as the source. The numerical scheme uses the electric field integral equation (EFIE) and layered media Green's function (LMGF) to model the electromagnetic interaction of the drill string and layered media. The effect of the multilayered coating (drilling fluid, cement, and casings in borehole) is modeled using the equivalence principle without increasing the number of unknowns. Only the induced current on the thin wire is discretized as the unknowns. Numerical results are presented to demonstrate the efficacy of the proposed method.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128324279","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}
{"title":"Voltage Pulse Propagation on a Dispersive Microstrip Transmission Line","authors":"Katherine Aho, K. Oughstun","doi":"10.23919/usnc-ursinrsm51531.2021.9336494","DOIUrl":"https://doi.org/10.23919/usnc-ursinrsm51531.2021.9336494","url":null,"abstract":"The influence of Debye model material dispersion on transmission line dispersion using the Getsinger model is described with regard to voltage pulse propagation along the line as well as the inverse problem of the determination of the medium properties from the propagated pulse behavior.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134475260","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}
R. Karimian, M. D. Ardakani, Behzad Koosha, S. Ahmadi, M. Zaghloul
{"title":"A Compact Beam Steering Dielectric Resonator Antenna for Wireless Power Transfer","authors":"R. Karimian, M. D. Ardakani, Behzad Koosha, S. Ahmadi, M. Zaghloul","doi":"10.23919/USNC-URSINRSM51531.2021.9336488","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336488","url":null,"abstract":"Design and simulation of a low profile and compact beam steering dielectric resonator antenna are discussed. A central feed primary monopole antenna is used to excite a DR, and another secondary monopole is used to achieve a unidirectional antenna. In order to have the desired direction, a fixed phase shift is added to all monopole antennas due to the physical distance. By switching between five monopole secondary antennas, a 60-degree 3-dB bandwidth pattern with the coverage of a half space is achieved.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130063825","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}
Nicholas E. Russo, C. Zekios, S. Georgakopoulos, Hyeon Seok An, Anand Kumar Mishra, R. Shepherd
{"title":"Design and Fabrication of an Origami Multimode Ring Antenna","authors":"Nicholas E. Russo, C. Zekios, S. Georgakopoulos, Hyeon Seok An, Anand Kumar Mishra, R. Shepherd","doi":"10.23919/USNC-URSINRSM51531.2021.9336435","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336435","url":null,"abstract":"In this work, a multimode multiple-input multiple-output (MIMO) ring antenna is proposed. Through characteristic mode analysis, two modes of the ring antenna are identified and excited. By mounting the antenna on an origami water-bomb pattern, the electromagnetic properties of both modes are simultaneously reconfigured through folding/unfolding. Notably, resonant frequencies at 1.91 GHz, 1.86 GHz, and 1.46 GHz are attained with different radiation patterns. By exciting multiple orthogonal modes at various frequencies, MIMO operation is realized within a reduced volume as compared to designs that employ traditional spatial diversity techniques. This origami multimode antenna provides a compact and adaptive solution for next generation communication systems.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124141667","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}
{"title":"Understanding Dynamic Spectrum Sharing: Field to Lab Methodology and Case Study","authors":"D. Mccarthy, D. Erisman","doi":"10.23919/usnc-ursinrsm51531.2021.9336495","DOIUrl":"https://doi.org/10.23919/usnc-ursinrsm51531.2021.9336495","url":null,"abstract":"With the demand to fulfill the insatiable appetite for voice, video, and data connectivity anywhere and anytime, the need for more spectrum bandwidth is a never ending challenge. When considering available spectrum, the NTIA and FCC have focused on spectrum that appears viable for coexistence through a measure of dynamic spectrum sharing (DSS). Recent technology and standards enhancement for dynamic access control, frequency selection, and detect and avoid technologies show promise to enable the successful sharing of occupied spectrum.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130354812","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}
{"title":"Stochastic Analysis of Human Exposure Assessment by Surrogate Model","authors":"Botian Zhang, Y. Rahmat-Samii","doi":"10.23919/USNC-URSINRSM51531.2021.9336475","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336475","url":null,"abstract":"Despite recent advances in the field, the stochastic analysis of EM models is still time-consuming. Thus, the approximation of the EM model by a surrogate model is often the only choice if a sufficient amount of simulations is required. This paper provides a systematic and novel methodology to implement the polynomial chaos expansion surrogate models in stochastic analysis. The necessary steps in the construction of surrogate model based on polynomial chaos expansion are explained. As an example, we estimate the statistics of the specific absorption rate of a smart watch GSM antenna on a human wrist. Results show that the proposed method is accurate and time-saving in the cases when numerous rounds of simulation are required.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130388135","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}
J. Pantoja, E. F. Ruiz, F. Vega, D. Chaparro-Arce, C. Kasmi
{"title":"Clutter Removal of GPR Data using Complex Natural Resonance Extraction","authors":"J. Pantoja, E. F. Ruiz, F. Vega, D. Chaparro-Arce, C. Kasmi","doi":"10.23919/USNC-URSINRSM51531.2021.9336515","DOIUrl":"https://doi.org/10.23919/USNC-URSINRSM51531.2021.9336515","url":null,"abstract":"In this paper we present a technique to remove clutter components on B-scans of ground penetrating radar. The technique is based on the complex resonance expansion of the signal, and the removal of poles associated with the clutter. For illustration technique is demonstrated on a buried metal sheet. Results show that the object is clearly highlighted and the clutter reduced in the B-Scan after applying the proposed technique.","PeriodicalId":180982,"journal":{"name":"2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132332838","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}