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A Rasorber with a Selective in-Band Transmission Response between Wide Absorption Bands 在宽吸收带之间具有选择性带内传输响应的吸波器
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924343
Aditi Sharma, Mondeep Saikia, Saptarshi Ghosh, K. V. Srivastava
{"title":"A Rasorber with a Selective in-Band Transmission Response between Wide Absorption Bands","authors":"Aditi Sharma, Mondeep Saikia, Saptarshi Ghosh, K. V. Srivastava","doi":"10.23919/EuMC54642.2022.9924343","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924343","url":null,"abstract":"A polarization-insensitive frequency selective rasorber structure with a highly selective transmission band is presented in this paper. The unit cell of the proposed design comprises a top lossy layer and a bottom lossless layer resulting in broadband absorption and narrow-band transmission responses, respectively. The novelty of the topology lie in its selective in-band transmission response at 9.3 GHz (with a 3-dB bandwidth of 13%) appearing between two wide absorption bands, spreading between 3.6 to 8.10 GHz and 10.50 to 13.30 GHz (having above 80% absorptivity). The structure has several other advantages, such as low footprint, angular stability, and wide adaptability. An equivalent circuit model and several parametric variations are also carried out to explain the operating principle of the geometry. Finally, a sample prototype has been fabricated and experimentally demonstrated for validation.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127498059","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
Rotationally Symmetric Lens Antenna with Biconical Feed for Broadband Measurement Applications 用于宽带测量的双圆锥馈源旋转对称透镜天线
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924442
Z. Tian, B. Sievert, M. Eube, P. Hildenhagen, D. Erni, A. Rennings
{"title":"Rotationally Symmetric Lens Antenna with Biconical Feed for Broadband Measurement Applications","authors":"Z. Tian, B. Sievert, M. Eube, P. Hildenhagen, D. Erni, A. Rennings","doi":"10.23919/EuMC54642.2022.9924442","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924442","url":null,"abstract":"We present a body of revolution (BoR) lens antenna with biconical feed. Due to the rotationally symmetric structure, the numerical optimization is carried out in a very efficient manner by 2D FEM simulation. The overall design is decomposed into several steps: Initially, the geometry of the biconical feeding structure out of brass is optimized for a broadband matching to the lens material, neglecting its finite size. Next, the shape of the polyethylene (PE) lens has been optimized for a broadband highly directive radiation towards the horizon. The three parts of the BoR antenna, namely the PE lens and the brass top and bottom cones used for feeding, have been fabricated by CNC milling. The assembly process of the antenna, which operates between 700 MHz and 12 GHz, is outlined as well. A very good agreement between the measured and FEM-simulated $S_{11}$ is demonstrated. The radiation measurement results show that the proposed antenna has a stable omnidirectional pattern, and features a moderate to high gain (up to 10.5 dBi) with increased frequency.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127499985","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
A novel approach for calculating the internal layers of snowpacks using a S-band radar 利用s波段雷达计算积雪内层的新方法
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924336
P. Espín-López, M. Pasian
{"title":"A novel approach for calculating the internal layers of snowpacks using a S-band radar","authors":"P. Espín-López, M. Pasian","doi":"10.23919/EuMC54642.2022.9924336","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924336","url":null,"abstract":"In the last years, the development of new ground-based techniques for studying the snowpack has tried to fill the gap between satellite and manual techniques. In particular, ground-based radars are considered a very useful technology for their ability to sound relatively deep snowpacks in a non-destructive way. Obtaining the bulk physical parameters of the snowpack (density, liquid water content…) has been successfully done using ground-based radars by several research groups, however, estimating the internal structure of the snowpack remains as a challenge due, mainly, to technological limitations. This work presents a novel quasi-automatic approach to estimate the internal structure of the snowpack, in terms of density and liquid water content (LWC), based in a double receiver S-band radar. The approach is validated with numerical simulations and the very first field results.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123338759","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
Numerical comparison of plane wave propagation inside realistic anatomical models and multilayer slabs 平面波在真实解剖模型和多层板内传播的数值比较
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924362
M. Colella, S. Di Meo, M. Liberti, M. Pasian, F. Apollonio
{"title":"Numerical comparison of plane wave propagation inside realistic anatomical models and multilayer slabs","authors":"M. Colella, S. Di Meo, M. Liberti, M. Pasian, F. Apollonio","doi":"10.23919/EuMC54642.2022.9924362","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924362","url":null,"abstract":"In this work, the electromagnetic field induced inside biological tissues by planewave exposure is numerically investigated. The results obtained on an anthropomorphic human body model were compared with those from a multilayer planar slab. The analysis focused on two anatomical districts, i.e., the wrist and the abdomen, whose corresponding multilayer slabs were built, and showed that, even with an accurately selected tissues sequence, the approximation of a simplified multilayer geometry was not able to fully reproduce the E-field distribution inside an extended anatomical region.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125544253","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
Investigation of Hydrogel Skin Phantoms Using Terahertz Time-domain Spectroscopy 用太赫兹时域光谱研究水凝胶皮肤幻影
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924308
D. Jayasankar, A. Hernandez-Serrano, Rachel A. Hand, J. Stake, E. MacPherson
{"title":"Investigation of Hydrogel Skin Phantoms Using Terahertz Time-domain Spectroscopy","authors":"D. Jayasankar, A. Hernandez-Serrano, Rachel A. Hand, J. Stake, E. MacPherson","doi":"10.23919/EuMC54642.2022.9924308","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924308","url":null,"abstract":"Human skin phantoms are essential to enable fast, label-free, and reliable testing of pharmaceutical and cosmetic products. We report the characterisation of polyvinyl alcohol-based hydrogel phantoms along with in-vivo skin measurements of three volunteers from 0.2 to 1 THz. The results indicate that frequency-dependent properties of hydrogel phantoms are similar to human skin and show promising prospects of being utilised as a skin equivalent.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129885599","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
Increased Coding Capacity of Chipless RFID Tags Using Radiation Pattern Diversity 利用辐射模式分集提高无芯片RFID标签的编码容量
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924405
Florian Requena, N. Barbot, D. Kaddour, E. Perret
{"title":"Increased Coding Capacity of Chipless RFID Tags Using Radiation Pattern Diversity","authors":"Florian Requena, N. Barbot, D. Kaddour, E. Perret","doi":"10.23919/EuMC54642.2022.9924405","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924405","url":null,"abstract":"In this paper, a method to increase the coding capacity of chipless RFID tags is proposed. This approach is based on the radiation pattern diversity of different resonators topology or different modes of resonance on the same resonator topology. By using two antennas and therefore two mono-static measurements, with these tags, it is possible to double the coding capacity without increasing the frequency band of operation. In the present manuscript, conventional chipless RFID loop resonators are considered. Two modes of resonance will be exhibited for this resonator and used to encode data. The novelty is the usage of the same frequency slot to encode multiple bits without interfering together.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130000782","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
Vittorio Rizzoli and Oscillator Analysis Vittorio Rizzoli和振荡器分析
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9991873
Stephen Maas
{"title":"Vittorio Rizzoli and Oscillator Analysis","authors":"Stephen Maas","doi":"10.23919/EuMC54642.2022.9991873","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9991873","url":null,"abstract":"A remarkable property of Prof. Rizzoli's work was his consistent ability to develop new simulation technologies to a high level of completeness. Nowhere was that more valid than in his development of oscillator analysis, solving three well recognized problems: lack of uniqueness, frequency determination, and avoiding the \"zero solution.\" His method is still one of the dominant ones in oscillator simulation. This paper will examine his work in this area, in context with previous oscillator analysis methods.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133972305","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 28 GHz 22FDX® PA with 31.5 % Peak PAE and Output Power of 21 dBm in CW, 18.5 dBm in QPSK, and 12.5 dBm in 64QAM 一个28 GHz 22FDX®放大器，峰值PAE为31.5%，连续波输出功率为21 dBm, QPSK输出功率为18.5 dBm, 64QAM输出功率为12.5 dBm
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924479
Z. Al-Husseini, S. Syed, P. V. Testa, G. Katzman, G. Bossu, Z. Zhao, S. Moss, C. Tianbing
{"title":"A 28 GHz 22FDX® PA with 31.5 % Peak PAE and Output Power of 21 dBm in CW, 18.5 dBm in QPSK, and 12.5 dBm in 64QAM","authors":"Z. Al-Husseini, S. Syed, P. V. Testa, G. Katzman, G. Bossu, Z. Zhao, S. Moss, C. Tianbing","doi":"10.23919/EuMC54642.2022.9924479","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924479","url":null,"abstract":"A 22nm FD-SOI Power Amplifier (PA) for 5G communication at 28 GHz is demonstrated. A dual-stage approach together with stacking techniques and optimized transistor-interconnection layout is used to achieve a measured peak PAE above 31% with an output power of 21.0 dBm. Besides output power and PAE, the PA demonstrated 12.5 dBm at −28 dB EVM with 64-QAM CF -OFDM 5G modulated signal and 18.5 dBm with DFT-s-OFDM QPSK modulated signal at −19 dB ACLR with 100-MHz bandwidth with a linear PAE of 20%. To the best of the authors knowledge, the presented PA shows the highest linear power and efficiency with QPSK while its 64-QAM modulated output power outperforms by 1 dB the state of the art while also reducing the EVM by 1 dB, when compared against 2-stage PA silicon implementations. Finally, an output-power degradation below 0.05 dB after 66 hours of stress at 21 dBm power level has been shown to demonstrate excellent reliability.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129610599","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
Characterization of the Dielectric Properties of Commercially Available Low-loss UV-curable Resins from 60 GHz to 90 GHz 市售低损耗紫外光固化树脂在60 GHz至90 GHz范围内介电性能的表征
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924501
P. E. Vargas, E. Meyer, F. Chiappini, A. Garufo, S. Monni, U. Johannsen, A. Reniers
{"title":"Characterization of the Dielectric Properties of Commercially Available Low-loss UV-curable Resins from 60 GHz to 90 GHz","authors":"P. E. Vargas, E. Meyer, F. Chiappini, A. Garufo, S. Monni, U. Johannsen, A. Reniers","doi":"10.23919/EuMC54642.2022.9924501","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924501","url":null,"abstract":"In this paper, two important dielectric properties, the relative permittivity and the loss tangent of a new commercially available UV-curable SLA resin sample are determined. The characterization of the dielectric material is performed in the millimetre-wave range using an open-cavity Fabry-Pérot resonator. According to the manufacturer's data sheet, this ultra low-loss photoresist material, optimised for advanced electronic applications, has a relative permittivity of 2.6 and a loss tangent of 0.003, both at 10 GHz. First, the accuracy of the Fabry-Pérot open-cavity resonator was determined using a reference material called Rexolite. Then, the new dielectric material was measured in a frequency band from 60 GHz to 90 GHz. The results show that the new commercial resin sample has a relative permittivity of 2.59 and a loss tangent of 0.0031 at 71.8 GHz.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114432811","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
Wideband Compact Dielectric-less Launcher of an X-band Ferrite Faraday Rotator x波段铁氧体法拉第旋转器的宽带紧凑型无介电发射装置
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924474
A. Morini, A. di Donato, M. Farina, D. Mencarelli, D. Salimbeni, D. Serluca, A. Fattori, L. Rondini, F. Serrano
{"title":"Wideband Compact Dielectric-less Launcher of an X-band Ferrite Faraday Rotator","authors":"A. Morini, A. di Donato, M. Farina, D. Mencarelli, D. Salimbeni, D. Serluca, A. Fattori, L. Rondini, F. Serrano","doi":"10.23919/EuMC54642.2022.9924474","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924474","url":null,"abstract":"A compact dielectric-less launcher for a ferrite filled circular waveguide operating as a Faraday rotator for high peak-power applications is presented. The launcher consists of a 2-section λ/4 transformer, the first one is an empty quad-ridge waveguide while the second is a ferrite partially filled circular waveguide in such a way that the same ferrite rod is used for both Faraday rotator and launcher transformer and no additional dielectrics and glues are required. The launcher is integrated between two dedicated OMTs, in order to access arbitrarily to both V and H polarizations.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114686721","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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