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2022 52nd European Microwave Conference (EuMC)最新文献

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Embedding of High Power RF Transistor Dies in PCB Laminate 高功率射频晶体管芯片在PCB层压板上的嵌入
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924281
Ioannis Peppas, Hiroaki Takahashi, J. Yip, E. Schlaffer, H. Paulitsch, W. Bösch
{"title":"Embedding of High Power RF Transistor Dies in PCB Laminate","authors":"Ioannis Peppas, Hiroaki Takahashi, J. Yip, E. Schlaffer, H. Paulitsch, W. Bösch","doi":"10.23919/EuMC54642.2022.9924281","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924281","url":null,"abstract":"This paper describes a novel packaging method for high power RF transistors, which minimizes chip to matching-network interconnect parasitic elements. Interconnect parasitics have significant importance for the development of high-frequency or harmonically-tuned power amplifiers and also for advanced power amplifier architectures such as Doherty. The demonstrated packaging method minimizes such parasitics by embedding of the chip inside the PCB laminate, enabling the development of low cost power amplifier modules for higher frequencies and wider bandwidths. The performance of an embedded device is compared to a wire-bonded device using loadpull measurements, to show the effect of the embedding on conventional high power RF transistors.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"252 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":"133849493","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
Towards High-Capacity THz-Wireless P2MP Communication Systems for 6G 迈向6G大容量太赫兹无线点对点通信系统
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924314
Oliver Stiewe, R. Elschner, Andreas Maaßen, S. Weide, C. Schubert, R. Freund
{"title":"Towards High-Capacity THz-Wireless P2MP Communication Systems for 6G","authors":"Oliver Stiewe, R. Elschner, Andreas Maaßen, S. Weide, C. Schubert, R. Freund","doi":"10.23919/EuMC54642.2022.9924314","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924314","url":null,"abstract":"We present different concepts of a THz-wireless point-to-multipoint (P2MP) communication system based on fast spatio-temporal beam-switching in the THz domain and discuss implications for the system and the DSP design. Characterization results from simulations and experiments towards the realization of a high-capacity P2MP THz-wireless communication prototype system will be presented.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"12 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":"133890964","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 a Digitally-Reconfigurable Metasurface for Magnetic Resonance Imaging 用于磁共振成像的数字可重构超表面研究
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924424
Marius Lippke, Endri Stoja, Dennis Philipp, S. Konstandin, J. Jenne, T. Bertuch, Matthias Günther
{"title":"Investigation of a Digitally-Reconfigurable Metasurface for Magnetic Resonance Imaging","authors":"Marius Lippke, Endri Stoja, Dennis Philipp, S. Konstandin, J. Jenne, T. Bertuch, Matthias Günther","doi":"10.23919/EuMC54642.2022.9924424","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924424","url":null,"abstract":"A one-dimensional, reconfigurable, smart metasurface intended for use in Magnetic Resonance Imaging (MRI) is shown to yield a signal-to-noise-ratio (SNR) enhancement. The device's digital interface offers a wirelessly-controlled, dynamically adjustable spatial sensitivity profile. The structure's design, numerical simulations, an analytical treatment of the reconfigurability, and on-bench measurements for characterization are presented.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"15 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":"134321720","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
Improvement of Breast Shape in a Female Whole-Body Model: A Numerical Evaluation of the Exposure to 2.45 GHz Plane Wave 女性全身模型乳房形状的改善:暴露于2.45 GHz平面波的数值评估
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924391
Noemi Dolciotti, M. Colella, S. D’Agostino, F. Apollonio, M. Liberti
{"title":"Improvement of Breast Shape in a Female Whole-Body Model: A Numerical Evaluation of the Exposure to 2.45 GHz Plane Wave","authors":"Noemi Dolciotti, M. Colella, S. D’Agostino, F. Apollonio, M. Liberti","doi":"10.23919/EuMC54642.2022.9924391","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924391","url":null,"abstract":"This study focused on a numerical comparison of the electromagnetic exposure to plane waves in two different female breast models, for dosimetry purposes. As a first step, the paper presented an improvement to the modelling of the female breast of a well assessed virtual female phantom. Then, the original and the modified models were compared when undergoing a plane wave exposure at 2.45GHz, impinging on the models. Three different wave polarizations were considered. The results highlighted the importance of using anatomically realistic breast models to achieve more accurate dosimetric results.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"15 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":"130546836","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
Phase Adjustment for Beamforming Arbitrarily-Shaped Phased Arrays 波束形成任意形状相控阵的相位调整
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924476
R. Pereira, N. Carvalho
{"title":"Phase Adjustment for Beamforming Arbitrarily-Shaped Phased Arrays","authors":"R. Pereira, N. Carvalho","doi":"10.23919/EuMC54642.2022.9924476","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924476","url":null,"abstract":"Aiming to develop radiative wireless power transfer by implementing quasioptics, the question of how gaussian beams are generated must be tackled. Following a theoretical paper on the literature about the generation of gaussian beams by phased arrays, here we develop simulations that aim to validate and study the results from that paper. In order to do that, a circular microstrip patch antenna was designed and and used to create different phased-arrays. The phase of the current distribution of each element was adjusted and the obtained radiation patterns are here discussed.","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":"125989747","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: 2
Ka-band Cavity Filter Manufactured in 3D-printed Alumina Technology 用3d打印氧化铝技术制造的ka波段空腔滤波器
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924353
F. Aquino, D. Tiradossi, L. Pelliccia, A. De Padova, F. Vitulli, S. Di Nardo, F. Deborgies
{"title":"Ka-band Cavity Filter Manufactured in 3D-printed Alumina Technology","authors":"F. Aquino, D. Tiradossi, L. Pelliccia, A. De Padova, F. Vitulli, S. Di Nardo, F. Deborgies","doi":"10.23919/EuMC54642.2022.9924353","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924353","url":null,"abstract":"This paper presents the design and the fabrication of a compact Ka-band dielectric cavity filter, manufactured in 3D-printed alumina technology. The goal is to achieve a flat in-band insertion loss, keeping constrained the device size. A 4th order and a 8th order cavity filters with 4 transmission zeros were designed and tested. The 8th order filter were designed using dual mode cavities in order to introduce additional transmission zeros without increasing the manufacturing complexity of the ceramic part. The filter is fabricated on low tanδ alumina which allows to achieve relatively high Q factor reducing the size of the device. The resonators exhibit a relatively- high unloaded Q-factor up to 800 which allows to increase the flatness in the operative bandwidth (27GHz-29.4GHz, FBW 8.5%). The selection of the material and filter geometry determine a very low occupation area (14×25mm2). The cavity filter has been mounted on alumina substrate to improve the thermal stability of the joint. The device demonstrates good robustness to thermal variations in the range between −10 and 70°C.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"11 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":"125488097","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
Energy Efficient ADC for Low Fan-Out MIMO Sub- THz Imaging System in SiGe: BiCMOS Technology 低扇出MIMO亚太赫兹成像系统的高能效ADC: BiCMOS技术
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924402
Max Uhlmann, R. Hussung, M. Eissa, A. Keil, F. Friederich, G. Fischer, P. Ostrovskyy
{"title":"Energy Efficient ADC for Low Fan-Out MIMO Sub- THz Imaging System in SiGe: BiCMOS Technology","authors":"Max Uhlmann, R. Hussung, M. Eissa, A. Keil, F. Friederich, G. Fischer, P. Ostrovskyy","doi":"10.23919/EuMC54642.2022.9924402","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924402","url":null,"abstract":"This paper presents a top-down architectural analysis of a MIMO imaging system in terms of analog-to-digital converter (ADC) requirements. This helps to determine the optimal ADC accuracy and make the right choice for an ADC circuit architecture, without going into an over design effort. It results in a 32 MS/s 8-bit SAR ADC based on a hybrid DAC architecture. The ADC was designed in a 130nm SiGe BiCMOS process, demonstrating core power consumption of 0.3mW from a 1.2V supply. The ADC core occupies a 0.23×0.13mm2 silicon area and can be easily integrated with a 220–260 GHz imaging receiver on the same IC. It will significantly improve power consumption, form factor and assembly of the complete MIMO imaging system.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"20 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":"126147433","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
Accelerating Model Adaptation of Multi-Metric Digital Predistortion for RF Power Amplifiers Using Composited Quadratic Loss Function 基于复合二次损失函数的射频功率放大器多度量数字预失真加速模型自适应
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924278
H. Yin, Chenhao Chu, A. Zhu
{"title":"Accelerating Model Adaptation of Multi-Metric Digital Predistortion for RF Power Amplifiers Using Composited Quadratic Loss Function","authors":"H. Yin, Chenhao Chu, A. Zhu","doi":"10.23919/EuMC54642.2022.9924278","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924278","url":null,"abstract":"The conventional model extraction of digital predistortion (DPD) for RF power amplifiers is usually based on minimizing errors in the time domain, such as the normalized mean square error. In the forthcoming systems, not only time-variant, but also multi-metric requirements in both the time and frequency domains will be posed, such as error vector magnitude and spectrum mask. Correspondingly, the DPD coefficients must be fast adapted, so as to satisfy the multiple requirements in a timely manner. In this paper, a composited quadratic loss function is proposed, so that the DPD coefficients can converge to the desired values to meet the multi-metric requirements with fewer iterations, when using the quadratic simultaneous perturbation stochastic approximation (SPSA) algorithm. The validation on a sequential load modulated balanced amplifier indicates that the proposed method is promising to be employed in the emerging scenarios.","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":"130419345","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
Contactless Antenna Radiation Efficiency Measurement Within Reverberation Chambers: Sensitivity Improvement 混响室内非接触式天线辐射效率测量:灵敏度改进
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924413
F. Sarrazin, Adnane Labdouni, W. Krouka, J. de Rosny, E. Richalot
{"title":"Contactless Antenna Radiation Efficiency Measurement Within Reverberation Chambers: Sensitivity Improvement","authors":"F. Sarrazin, Adnane Labdouni, W. Krouka, J. de Rosny, E. Richalot","doi":"10.23919/EuMC54642.2022.9924413","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924413","url":null,"abstract":"This paper discusses the sensitivity improvement of a contactless antenna radiation efficiency measurement method within reverberation chambers (RCs). The method does not need to connect the antenna under test to an analyzer through cables, which are known to disturb antenna impedance and radiation characteristics when placed in the reactive field zone of electrically small antennas. The sensitivity improvement is achieved through the use of multiple identical AUTs located within the RC in order to enhance the quality factor variation introduced by the modification of the AUT load impedance.","PeriodicalId":215592,"journal":{"name":"2022 52nd European Microwave Conference (EuMC)","volume":"54 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":"128812161","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
Dynamically Reconfigurable Broadband SP3T Switch Powered by WPT for Antenna Switching Applications 用于天线交换应用的WPT驱动的动态可重构宽带SP3T交换机
2022 52nd European Microwave Conference (EuMC) Pub Date : 2022-09-27 DOI: 10.23919/EuMC54642.2022.9924489
Asif Bilal, Abdul Quddious, S. A. Rezaeieh, S. Iezekiel, M. Antoniades
{"title":"Dynamically Reconfigurable Broadband SP3T Switch Powered by WPT for Antenna Switching Applications","authors":"Asif Bilal, Abdul Quddious, S. A. Rezaeieh, S. Iezekiel, M. Antoniades","doi":"10.23919/EuMC54642.2022.9924489","DOIUrl":"https://doi.org/10.23919/EuMC54642.2022.9924489","url":null,"abstract":"In this work, a broadband single pole triple throw (SP3T) switch that operates between a frequency range of 0.02 – 6 GHz is reconfigured by means of wireless power transfer (WPT) through an energy harvesting (EH) circuit. The WPT is achieved by designing three rectennas working at 2.3 GHz, 2.45 GHz, and 2.6 GHz. Each rectenna consists of a low-power RF rectifier circuit associated with a distinct antenna element and a commercially available e-peas AEM30940 power management unit (PMU) that is able to provide an output of 1.8 V – 4.1 V with cold start-up from 380 mV and 3 µW input power. The PMU also consists of a storage capacitor where the energy from the low power received signal is stored. The three input pins of the SP3T switch require a driving voltage of 1.8 V to actuate its RF port. This voltage is provided by the designed rectennas through the PMU, and we can actuate the switch with a very low power (3 µW) received signal. The rectennas are designed to provide the 380 mV between −12 dBm to −10 dBm received power with a conversion efficiency of approx. 40 %for each rectenna. The proposed method to wirelessly enable the SP3T switch with a low-power RF signal can provide a breakthrough to reconfigure microwave devices and antennas for a broad range of applications, and also paves the way not only for the generation of clean energy, but also for its use as an alternative to batteries.","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":"129501369","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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