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2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)最新文献

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Beamforming Synthesis for Initial Access Fairness in Wireless Networks 无线网络初始接入公平性的波束形成综合
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792348
Benjamin Imanilov
{"title":"Beamforming Synthesis for Initial Access Fairness in Wireless Networks","authors":"Benjamin Imanilov","doi":"10.1109/gsmm53818.2022.9792348","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792348","url":null,"abstract":"This article introduces an Initial Access Fairness Beamforming (IAFB) approach for wireless networks using millimeter wave and terahertz frequencies and proposes novel synthesis method. The fairness is establishing independence between user location and the initial access signals received power level. We propose codeword synthesis with phase-only control which is beneficial for passive implementation of the receiver (Rx) and improves power utilization at the transmitter (Tx), which reduces mutual coupling impact for both Rx and Tx directions. In contrast to classical shaped beam synthesis methods where desired radiation patterns are targeted, we target the fairness of the received power distribution at the desired coverage area by solving a multi-objective nonconvex optimization problem. We address the known nonconvex optimization issues of initial state sensitivity and convergence rate by splitting the problem into a sequence of concatenated sub-problems, where the solution of one sub-problem defines the initial state for the next sub-problem.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125069578","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
Design and Measurement Method of Small Cassegrain Antenna for Long-Distance Transmission 远距离传输小型卡塞格伦天线的设计与测量方法
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792327
Jung‐Nam Lee, K. Kim, Heon-Kook Kwon, Soek-Bong Hyun
{"title":"Design and Measurement Method of Small Cassegrain Antenna for Long-Distance Transmission","authors":"Jung‐Nam Lee, K. Kim, Heon-Kook Kwon, Soek-Bong Hyun","doi":"10.1109/gsmm53818.2022.9792327","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792327","url":null,"abstract":"A sub-THz Cassegrain antenna for long-distance transmission was designed, manufactured, and measured. We designed the main reflector to have a diameter of 30 mm to obtain a gain of 30 dBi or more and a relatively wider beam width than a general Cassegrain antenna. The proposed antenna has a gain of 36.8 dBi and a beam width of 2.5° at 245 GHz. The received power level and radiation pattern were measured by configuring a measurement environment to measure the performance of the sub-THz antenna. The commercial horn antenna and the proposed Cassegrain antenna were compared and measured. The transmitter consists of an analog signal generator (ASG) and an up-converter (UC), and a commercial horn antenna with 24 dBi gain at 245 GHz is attached to the upconverter. The receiver consists of a signal analyzer (SA) and a down-converter (DC), and the proposed Cassegrain antenna is attached to the down-converter. We compared the measured and simulated results to obtain reliable measurement results without using an anechoic chamber.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122897082","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
Rediscovery of Glass Materials for Millimeter-wave Wireless Communications 毫米波无线通信用玻璃材料的再发现
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792344
Hyengcheul Choi, Byounggwan Kang
{"title":"Rediscovery of Glass Materials for Millimeter-wave Wireless Communications","authors":"Hyengcheul Choi, Byounggwan Kang","doi":"10.1109/gsmm53818.2022.9792344","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792344","url":null,"abstract":"Over the past 30 years, as mobile communication evolved from 1G to 4G, associated technologies have become increasingly sophisticated. But the 5G era still needs more innovative solutions to meet higher level specifications. Glass materials have received a lot of attention in recent years because they have many advantages in fabricating sensitive 5G components. This paper compares various properties, between glass and incumbent materials, such as, surface roughness, fine patterning and vias, Young’s modulus, etc. Additionally, various types of Frequency Selective Surface (FSS) are introduced in this paper because FSS is a basic technology for Reconfigurable Intelligent Surface (RIS) applied to 5G and 6G communications. Furthermore, 6G will use higher frequency bands than 5G, so it is expected that high quality material like glass will be increasingly required.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123204321","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 45-nm RFSOI CMOS Based Band-Reconfigurable Quadrature Hybrid for mm-Wave 5G Applications 基于45nm RFSOI CMOS的毫米波5G波段可重构正交混合电路
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792347
Jun-Hee Jung, Seungjae Baek, Jooseok Lee, Hyun-Chul Park, Taewan Kim, Sung-Gi Yang
{"title":"A 45-nm RFSOI CMOS Based Band-Reconfigurable Quadrature Hybrid for mm-Wave 5G Applications","authors":"Jun-Hee Jung, Seungjae Baek, Jooseok Lee, Hyun-Chul Park, Taewan Kim, Sung-Gi Yang","doi":"10.1109/gsmm53818.2022.9792347","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792347","url":null,"abstract":"We present a band-reconfigurable quadrature hybrid (QH) for in-phase (I) and quadrature (Q) signal generation in a broadband Doherty power amplifier (PA) for millimeter-wave (mm-Wave) 5G application in a 45-nm RFSOI CMOS device technology. The band-reconfigurable QH has been implemented using a single transistor-based switch (SW) and its simulation results show an I/Q signal magnitude imbalance of less than 0.7 dB, and an I/Q signal phase imbalance of 88.7 – 90.5° in 5G NR bands (n258, n257). The core area of the band-reconfigurable QH is 230 µm × 110µm excluding the probing pads and input/output baluns for probing test.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130699044","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 60-GHz X-type Variable Gain Attenuator 一个60 ghz x型可变增益衰减器
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792328
G. Park, Chulhong Park
{"title":"A 60-GHz X-type Variable Gain Attenuator","authors":"G. Park, Chulhong Park","doi":"10.1109/gsmm53818.2022.9792328","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792328","url":null,"abstract":"A 60-GHz X-type attenuator with complementary bias control is proposed in this study. The proposed circuit was implemented with a 65-nm CMOS process and it occupies $520 mu mathrm{m}$ $times 471 mu mathrm{m}$ including bonding pads. The measured peak gain is -6 dB, and 3 -dB bandwidth is over 18.2 GHz from 48.8 to over 67 GHz. In addition, proposed phase invertible attenuator achieves a gain control range of over $37 mathrm{~dB}$ with maximum 14° phase variation in $60-mathrm{GHz}$ band.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129053992","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
Ultra-Wideband Electromagnetic-Wave Absorber for IEEE 802.15.3d IEEE 802.15.3 3d超宽带电磁波吸收器
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792358
Sangyeop Lee, Masao Fujita, Masayuki Toyoda, K. Takano, S. Hara, I. Watanabe, A. Kasamatsu, H. Ito
{"title":"Ultra-Wideband Electromagnetic-Wave Absorber for IEEE 802.15.3d","authors":"Sangyeop Lee, Masao Fujita, Masayuki Toyoda, K. Takano, S. Hara, I. Watanabe, A. Kasamatsu, H. Ito","doi":"10.1109/gsmm53818.2022.9792358","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792358","url":null,"abstract":"A 300-GHz band is a promising frequency band for ultra-high-speed future wireless communication. To realize it, a method using an electromagnetic-wave (EM-wave) absorber has been desired to suppress the cavity resonance of a transceiver module and to increase reliability. In this paper, we show an ultra-wideband EM-wave absorber for IEEE Standard 802.15.3d.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122384224","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
CMOS Based Sub-THz Wireless Transceivers: Issues and Solutions 基于CMOS的次太赫兹无线收发器:问题与解决方案
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792336
Byeonghun Yun, Byeong-Taek Moon, Sang-Gug Lee
{"title":"CMOS Based Sub-THz Wireless Transceivers: Issues and Solutions","authors":"Byeonghun Yun, Byeong-Taek Moon, Sang-Gug Lee","doi":"10.1109/gsmm53818.2022.9792336","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792336","url":null,"abstract":"This talk will summarize the state-of-the-art sub-THz radio transceiver technologies focusing on CMOS technology, and identify the limiting factors and issues in terms of architectures and circuit topologies. Then, present the approaches and solutions that have been proposed by the members of the speaker’s team at KAIST","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"606 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132150997","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
Sub-THz III-V on Si technologies for 6G electronics 6G电子器件的Sub-THz III-V Si技术
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792338
N. Collaert
{"title":"Sub-THz III-V on Si technologies for 6G electronics","authors":"N. Collaert","doi":"10.1109/gsmm53818.2022.9792338","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792338","url":null,"abstract":"In this work, we will highlight the need for a mature and upscaled III-V technology to address the needs for the power amplifiers in next generation 6G applications, where the vision is to move to operating frequencies above 100GHz. III-V upscaling ultimately allows to enable a hybrid III-V/CMOS technology to reduce power consumption but also enable a much smaller footprint. We will also discuss the possible co-integration schemes to combine these devices with standard CMOS, used for the beamforming, and how to connect to the antennas.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134574549","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
Performance analysis of GaN/Si versus GaAs LNAs in 5G mm-wave frontend context 5G毫米波前端GaN/Si与GaAs LNAs性能分析
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792324
L. Letailleur, M. Villegas, A. Hajjar, C. Kacou
{"title":"Performance analysis of GaN/Si versus GaAs LNAs in 5G mm-wave frontend context","authors":"L. Letailleur, M. Villegas, A. Hajjar, C. Kacou","doi":"10.1109/gsmm53818.2022.9792324","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792324","url":null,"abstract":"This paper presents a comparative performance analysis of LNAs realized in GaAs and GaN/Si technologies in the context of 5G mmWave massive MIMO transceiver. Regardless the choice of architecture for beamforming, a key component of the base station transmitter is the RF frontend. In this paper, we investigate the linear and nonlinear performance in a gain/noise/linearity trade-off for the LNA. The circuits are fabricated using OMMIC technologies and characterized on board over the 24-30 GHz frequency band. Measurements demonstrate that it is interesting to use a GaN in a frontend thanks to its additional advantages in terms of linearity.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122091228","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
Antenna Front-end Technologies Featuring Antenna-on-Display and Antenna-in-Package to Enable 360° Beamforming Coverage for Millimeter-wave Wireless Connectivity 具有显示天线和封装天线的天线前端技术，可实现360°波束成形覆盖毫米波无线连接
2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM) Pub Date : 2022-05-18 DOI: 10.1109/gsmm53818.2022.9792337
Junho Park, W. Hong
{"title":"Antenna Front-end Technologies Featuring Antenna-on-Display and Antenna-in-Package to Enable 360° Beamforming Coverage for Millimeter-wave Wireless Connectivity","authors":"Junho Park, W. Hong","doi":"10.1109/gsmm53818.2022.9792337","DOIUrl":"https://doi.org/10.1109/gsmm53818.2022.9792337","url":null,"abstract":"Phased array antenna technology has been imperative to ensure the wireless connectivity of millimeter-wave (mmWave) wireless devices such as CPEs and cellular devices. Due to advances in CMOS technology, a typical 5G mmWave TRX can achieve a high output power of 10-15 dBm and minimum reference signal receive power (RSRP) of approximately -140 dBm [1]. However, the path to realizing the full potential of the millimeter wave technology is hindered by numerous technical challenges including size, cost, and power constraints. The research and development (R&D) group at KREEEMO Inc. has been focusing on integrating antennas and RF front-ends which can energy-efficiently improve mmWave beamforming coverage in indoor and outdoor scenarios. The speaker will discuss (1) current research and development on antenna packaging technology, (2) the hybrid antenna-on-display (AoD) and antenna-in-package (AiP) beamforming architecture featuring 360° beamforming coverage in a cellular device, and (3) the AiP design with stackable patch antenna (SPA) technology.","PeriodicalId":234877,"journal":{"name":"2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114761668","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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