Pub Date : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935164
Kai Wang, Mao-zheng Chen, Hao Yan, Liang Cao, Jun Ma, X. Duan
Phased array feed is a small phased array placed at the focal plane field of the radio telescope. Its field of view can be understood as the maximum scanning angle that the array can achieve combined with the radio telescope. When the aperture is 25m, the focal diameter ratio is 0.3 and the working frequency is 1.25GHz, the design of Phased array feed can realize the scanning range of one beam width, so as to determine the array size of phased array feed. 5×5 and 9×9 rectangular array arrange evenly within this size range, which can scan a beam in different directions by exciting different subarrays. By comparing the beam deviation angles and beam width under the two arrangement modes, we can see that 9×9 arranged PAF array will eventually expand the number of beams included in the field of view of the telescope from 0.96-1.25 of 5×5 array to 1.54-2.9. The related work has a certain guiding role for array design and field of view optimization for phased array feed.
{"title":"Research on Expanding the Field of View of Phased Array Fee","authors":"Kai Wang, Mao-zheng Chen, Hao Yan, Liang Cao, Jun Ma, X. Duan","doi":"10.1109/MAPE53743.2022.9935164","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935164","url":null,"abstract":"Phased array feed is a small phased array placed at the focal plane field of the radio telescope. Its field of view can be understood as the maximum scanning angle that the array can achieve combined with the radio telescope. When the aperture is 25m, the focal diameter ratio is 0.3 and the working frequency is 1.25GHz, the design of Phased array feed can realize the scanning range of one beam width, so as to determine the array size of phased array feed. 5×5 and 9×9 rectangular array arrange evenly within this size range, which can scan a beam in different directions by exciting different subarrays. By comparing the beam deviation angles and beam width under the two arrangement modes, we can see that 9×9 arranged PAF array will eventually expand the number of beams included in the field of view of the telescope from 0.96-1.25 of 5×5 array to 1.54-2.9. The related work has a certain guiding role for array design and field of view optimization for phased array feed.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128637089","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}
This paper presents a design method for frequency selective surface (FSS) based on the deep neural network and improved particle swarm algorithm (IPSO). In the proposed method, the forward prediction network (FPN) based on the fully connected network is established to fast predict the transmission coefficient of FSS. Combined with the FPN, the IPSO is used to optimize the structural parameters of FSS. Compared with the traditional iterative optimization method based on full-wave simulation, this method greatly improves the optimization efficiency of FSS. For example, a band-stop FSS is optimized with the proposed method in 210.6s, and the optimization efficiency increases by more than 99%. Simulation results show that the transmission coefficient errors of key frequency points between optimization results and objectives are less than 1 dB. And the deviation of the center frequency and the bandwidth of the target frequency bands is less than 0.81% and 4.1%, respectively.
{"title":"A Novel Method for Frequency Selective Surface Design Using Deep Learning with Improved Particle Swarm Algorithm","authors":"Riqiu Cong, Ning Liu, Xiang Gao, Chunbo Zhang, Kaihua Yang, X. Sheng","doi":"10.1109/MAPE53743.2022.9935221","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935221","url":null,"abstract":"This paper presents a design method for frequency selective surface (FSS) based on the deep neural network and improved particle swarm algorithm (IPSO). In the proposed method, the forward prediction network (FPN) based on the fully connected network is established to fast predict the transmission coefficient of FSS. Combined with the FPN, the IPSO is used to optimize the structural parameters of FSS. Compared with the traditional iterative optimization method based on full-wave simulation, this method greatly improves the optimization efficiency of FSS. For example, a band-stop FSS is optimized with the proposed method in 210.6s, and the optimization efficiency increases by more than 99%. Simulation results show that the transmission coefficient errors of key frequency points between optimization results and objectives are less than 1 dB. And the deviation of the center frequency and the bandwidth of the target frequency bands is less than 0.81% and 4.1%, respectively.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"523 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127168002","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935192
Jia-Xing Guo, J. Xiao
In this report, a self-packaged millimeter wave filled dielectric resonator antenna (DRA) is presented, which is based on polymer liquid crystal polymer (LCP) multilayer suspended coplanar waveguide (CPW) structure. By filling the dielectric resonator in the substrate, our design provides a new way to fix the dielectric resonator antenna. Meanwhile, the dielectric resonators filled in the substrate form a stacking form with the lower substrate, which can excite more modes and expand the antenna bandwidth. The antenna adopts the form of coplanar waveguide slot fed dielectric resonator for mixed radiation. The center frequency of the antenna is 47.85GHz, the relative bandwidth is 31%, and the maximum gain is 8.8dB.
{"title":"Broadband-Filled Dielectric Resonator Antenna Based on LCP Suspended Coplanar Waveguide","authors":"Jia-Xing Guo, J. Xiao","doi":"10.1109/MAPE53743.2022.9935192","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935192","url":null,"abstract":"In this report, a self-packaged millimeter wave filled dielectric resonator antenna (DRA) is presented, which is based on polymer liquid crystal polymer (LCP) multilayer suspended coplanar waveguide (CPW) structure. By filling the dielectric resonator in the substrate, our design provides a new way to fix the dielectric resonator antenna. Meanwhile, the dielectric resonators filled in the substrate form a stacking form with the lower substrate, which can excite more modes and expand the antenna bandwidth. The antenna adopts the form of coplanar waveguide slot fed dielectric resonator for mixed radiation. The center frequency of the antenna is 47.85GHz, the relative bandwidth is 31%, and the maximum gain is 8.8dB.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117008302","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935198
E. Li, Xue Li, Boon-Chong Seet
This paper presents a wideband monopole antenna with a low-profile structure for wireless body area network applications. The antenna features a rectangular monopole patch with circular and rectangular cuts and operates at 11.92 GHz to 21.66 GHz with a 9.74 GHz bandwidth. The electrical length of the antenna is 1.2λ. The antenna is simulated with an approximate four-layer human body tissue model. A slight frequency shift and gain attenuation are observed affected by the tissue model. SAR values are also simulated with different distances between the antenna and the tissue model, which indicates the safe distance must be at least 20 mm.
{"title":"A Low-Profile Wideband Monopole Antenna for WBAN Flexible Applications","authors":"E. Li, Xue Li, Boon-Chong Seet","doi":"10.1109/MAPE53743.2022.9935198","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935198","url":null,"abstract":"This paper presents a wideband monopole antenna with a low-profile structure for wireless body area network applications. The antenna features a rectangular monopole patch with circular and rectangular cuts and operates at 11.92 GHz to 21.66 GHz with a 9.74 GHz bandwidth. The electrical length of the antenna is 1.2λ. The antenna is simulated with an approximate four-layer human body tissue model. A slight frequency shift and gain attenuation are observed affected by the tissue model. SAR values are also simulated with different distances between the antenna and the tissue model, which indicates the safe distance must be at least 20 mm.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128108061","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935230
Di Cao, Yujian Li, Junhong Wang
A novel Spoof Surface Plasmon Polaritons (SSPPs)–fed dual-polarized microstrip patch antenna for millimeter-wave application is proposed in this paper. Owing to the single-conductor features of SSPPs, the proposed antenna has a compact and low-profile geometry that can be integrated into a single-layered substrate conveniently. The antenna has a measured impedance bandwidth of 14%. An average gain of 3 dBi and stable radiation patterns are also obtained. Then, by combining a pair of SSPPs feed network with the patch elements, a 1 × 4 SSPPs fed dual-polarized microstrip patch antenna array with satisfied broadside radiation is designed in 5G millimeter-wave band.
{"title":"Spoof Surface Plasmon Polaritons-Fed Dual Polarized Patch Antenna Array","authors":"Di Cao, Yujian Li, Junhong Wang","doi":"10.1109/MAPE53743.2022.9935230","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935230","url":null,"abstract":"A novel Spoof Surface Plasmon Polaritons (SSPPs)–fed dual-polarized microstrip patch antenna for millimeter-wave application is proposed in this paper. Owing to the single-conductor features of SSPPs, the proposed antenna has a compact and low-profile geometry that can be integrated into a single-layered substrate conveniently. The antenna has a measured impedance bandwidth of 14%. An average gain of 3 dBi and stable radiation patterns are also obtained. Then, by combining a pair of SSPPs feed network with the patch elements, a 1 × 4 SSPPs fed dual-polarized microstrip patch antenna array with satisfied broadside radiation is designed in 5G millimeter-wave band.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114391053","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935170
Xixi Fu, Yutong Zhao, Tao Su, Jianzhong Chen, Bian Wu
In this paper, a transmitted cross-polarization converter based on the stripline filter is proposed. The cross-polarization convert can transmit Y-polarization linear waves to X-polarization linear waves and transmit X-polarization linear waves to Y-polarization linear waves with high frequency selectivity. The high frequency selectivity is realized by the structures of the stripline filters, which are two same 90°transmission lines for the unit cell with second-order filter response and two same half-wavelength transmission lines for the unit cell with third-order filter response. The simulation results show that the unit cell with third-order filter response has a more excellent frequency selectivity than the unit cell with second-order filter response. The electrical field distribution of the incident and transmitted waves can directly show the function of the cross-polarization converter. It is evident that the stripline filter is effective in improving frequency selectivity. The transmitted cross-polarization converter is a potential alternative in some wireless communication systems.
{"title":"A Transmitted Cross-Polarization Converter Based on the Stripline Filter","authors":"Xixi Fu, Yutong Zhao, Tao Su, Jianzhong Chen, Bian Wu","doi":"10.1109/MAPE53743.2022.9935170","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935170","url":null,"abstract":"In this paper, a transmitted cross-polarization converter based on the stripline filter is proposed. The cross-polarization convert can transmit Y-polarization linear waves to X-polarization linear waves and transmit X-polarization linear waves to Y-polarization linear waves with high frequency selectivity. The high frequency selectivity is realized by the structures of the stripline filters, which are two same 90°transmission lines for the unit cell with second-order filter response and two same half-wavelength transmission lines for the unit cell with third-order filter response. The simulation results show that the unit cell with third-order filter response has a more excellent frequency selectivity than the unit cell with second-order filter response. The electrical field distribution of the incident and transmitted waves can directly show the function of the cross-polarization converter. It is evident that the stripline filter is effective in improving frequency selectivity. The transmitted cross-polarization converter is a potential alternative in some wireless communication systems.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129507678","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935177
Stalin Molina, Pierina Zambrano
In order to determine and measure the losses in terms of wave propagation in mobile signals, propagation models are indicated to know these data, which are of great importance in the design of networks and systems, since there are several, it is necessary to determine the most effective for each environment. This article evaluates and compares various propagation models in urban and suburban environments in different areas of the city of Riobamba, thus determining the most appropriate model to implement in each area. The parameters required for each model focus especially on the heights of the base station and mobile station and also consider the coverage technology that the base station emits, generally in our country LTE signal is currently used and in few cases 3G. Finally, we compare the predictions of the evaluated models with real measurements taken in each zone with a total of 50 samples per zone, resulting in a different model for each environment.
{"title":"Comparative Study of Propagation Models with LTE Technology in Urban and Suburban Areas of Riobamba City","authors":"Stalin Molina, Pierina Zambrano","doi":"10.1109/MAPE53743.2022.9935177","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935177","url":null,"abstract":"In order to determine and measure the losses in terms of wave propagation in mobile signals, propagation models are indicated to know these data, which are of great importance in the design of networks and systems, since there are several, it is necessary to determine the most effective for each environment. This article evaluates and compares various propagation models in urban and suburban environments in different areas of the city of Riobamba, thus determining the most appropriate model to implement in each area. The parameters required for each model focus especially on the heights of the base station and mobile station and also consider the coverage technology that the base station emits, generally in our country LTE signal is currently used and in few cases 3G. Finally, we compare the predictions of the evaluated models with real measurements taken in each zone with a total of 50 samples per zone, resulting in a different model for each environment.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132643705","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935182
Xiaoran Yu, Hongcheng Zhou, Yu Wang, Zhongming Yan
A reconfigurable wideband polarization converter with low insertion loss (IL) and high isolation is proposed in this paper, which is based on active metasurface. By controlling the working states of added PIN diodes, the polarizer can maintain the polarization state of incident waves and convert linearly polarized (LP) waves to its cross-polarized waves, left-handed circularly polarized (LHCP) or right-handed circularly polarized (RHCP) waves. The IL is less than 1 dB and the isolation is greater than 70 dB during polarization-maintaining. As a linear-to-linear (LTL) polarizer, the minimum IL and the maximum isolation is 0.45 dB and 44 dB, respectively. The relative 3-dB axial ratio (AR) bandwidth is 43.95% when the polarizer works as a linear-to-circular (LTC) polarizer. Besides, the polarizer can maintain the stability with the incident angle from 0 to 20°. The overlapping band of four functions is 4.42-6.91GHz. The multifunctional polarizer can be widely used in practical applications, such as providing multiple transmission channels for frequency reuse.
{"title":"A Wideband Multifunctional Polarization Converter with Low Loss and High Isolation","authors":"Xiaoran Yu, Hongcheng Zhou, Yu Wang, Zhongming Yan","doi":"10.1109/MAPE53743.2022.9935182","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935182","url":null,"abstract":"A reconfigurable wideband polarization converter with low insertion loss (IL) and high isolation is proposed in this paper, which is based on active metasurface. By controlling the working states of added PIN diodes, the polarizer can maintain the polarization state of incident waves and convert linearly polarized (LP) waves to its cross-polarized waves, left-handed circularly polarized (LHCP) or right-handed circularly polarized (RHCP) waves. The IL is less than 1 dB and the isolation is greater than 70 dB during polarization-maintaining. As a linear-to-linear (LTL) polarizer, the minimum IL and the maximum isolation is 0.45 dB and 44 dB, respectively. The relative 3-dB axial ratio (AR) bandwidth is 43.95% when the polarizer works as a linear-to-circular (LTC) polarizer. Besides, the polarizer can maintain the stability with the incident angle from 0 to 20°. The overlapping band of four functions is 4.42-6.91GHz. The multifunctional polarizer can be widely used in practical applications, such as providing multiple transmission channels for frequency reuse.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130569770","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935167
Tielin Zhang, Hongmei Liu, Xuejiao Wang, Yao Wang, Shaojun Fang
In this study, a C-band full-360° reflection-type phase shifter (RTPS) using trans-directional (TRD) coupler implemented with vertically installed planar (VIP) structure is presented. By realizing the TRD coupler with VIP structure, the poor performance of the commercial capacitor at high frequencies caused by capacitor-tolerance can be avoided. Besides, full-360° phase shifts can be obtained by the proposed reflective loads. For validation, a prototype is designed, fabricated, and measured. Due to the unique structure of the TRD coupler, only one DC power supply is needed for controlling the two reflective loads simultaneously. The results show a maximum phase shift of 380° at the center frequency, which demonstrates the applications in C-band phased arrays.
{"title":"C-Band Full-360° Reflection-Type Phase Shifter Implemented by Trans-Directional Coupler Using Vertically Installed Planar Technique","authors":"Tielin Zhang, Hongmei Liu, Xuejiao Wang, Yao Wang, Shaojun Fang","doi":"10.1109/MAPE53743.2022.9935167","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935167","url":null,"abstract":"In this study, a C-band full-360° reflection-type phase shifter (RTPS) using trans-directional (TRD) coupler implemented with vertically installed planar (VIP) structure is presented. By realizing the TRD coupler with VIP structure, the poor performance of the commercial capacitor at high frequencies caused by capacitor-tolerance can be avoided. Besides, full-360° phase shifts can be obtained by the proposed reflective loads. For validation, a prototype is designed, fabricated, and measured. Due to the unique structure of the TRD coupler, only one DC power supply is needed for controlling the two reflective loads simultaneously. The results show a maximum phase shift of 380° at the center frequency, which demonstrates the applications in C-band phased arrays.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134594445","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 : 2022-08-26DOI: 10.1109/MAPE53743.2022.9935161
D. He, Zhiying Chen
The exposure of the human body to electromagnetic radiation levels is exacerbated when medical devices are implanted. With the wide application of implantable medical devices, the electromagnetic radiation safety of such devices cannot be ignored. This paper studies the effect of tissue type, implantation depth, frequency and deflection angle on the specific absorption rate of human tissue in vivo with the radiation source. This study takes the multi-layer tissue model as the main research object, and uses CST Microwave Studio to establish a radiation model with a planar inverted-F antenna implanted in human tissue as the radiation source. Calculate the specific absorption rate under various conditions, and judge the influence of various factors on the specific absorption rate. The results show that tissue type and frequency have significant effects on the specific absorption rate. When the frequency is increased from 2.45GHz to 5.8GHz, the specific absorption rate is also increased from 58.2111W/kg to 118.095W/kg. Different tissue types have different specific absorption rates due to differences in relative permittivity and electrical conductivity. However, the effect of implant depth and deflection angle on the specific absorption rate is not obvious.
{"title":"Study on the Specific Absorption Rate of Implantable Medical Devices in Multilayer Tissues","authors":"D. He, Zhiying Chen","doi":"10.1109/MAPE53743.2022.9935161","DOIUrl":"https://doi.org/10.1109/MAPE53743.2022.9935161","url":null,"abstract":"The exposure of the human body to electromagnetic radiation levels is exacerbated when medical devices are implanted. With the wide application of implantable medical devices, the electromagnetic radiation safety of such devices cannot be ignored. This paper studies the effect of tissue type, implantation depth, frequency and deflection angle on the specific absorption rate of human tissue in vivo with the radiation source. This study takes the multi-layer tissue model as the main research object, and uses CST Microwave Studio to establish a radiation model with a planar inverted-F antenna implanted in human tissue as the radiation source. Calculate the specific absorption rate under various conditions, and judge the influence of various factors on the specific absorption rate. The results show that tissue type and frequency have significant effects on the specific absorption rate. When the frequency is increased from 2.45GHz to 5.8GHz, the specific absorption rate is also increased from 58.2111W/kg to 118.095W/kg. Different tissue types have different specific absorption rates due to differences in relative permittivity and electrical conductivity. However, the effect of implant depth and deflection angle on the specific absorption rate is not obvious.","PeriodicalId":442568,"journal":{"name":"2022 IEEE 9th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132051185","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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