2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)最新文献_第4页

Design of Dual-Layer Fabry Perot Cavity Antenna 双层法布里珀罗腔天线的设计

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199725

L. Feng, D. Cheng, Bin Hao

引用次数: 1

Study of 28 GHz Transceiver Module Integrated With LO Source for 5G mmWave Communication 5G毫米波通信中集成LO源的28ghz收发模块研究

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199679

Zewen Luo, Haidong Chen, W. Che, Q. Xue

引用次数: 1

A Waveguide-Fed Transmitting Antenna for High Efficiency Microwave Power Transmission 一种用于高效微波功率传输的波导馈电发射天线

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199683

Junfeng Chen, Long Xiao, Liang Chen, Songcen Wang, Fengtao Wu, Deliang Zhao

引用次数: 0

Ka-band MMIC LNA Design ka波段MMIC LNA设计

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199767

G. Qin, Liu Jing-ping, Liu Zi-ting, Lin Hui-jun

{"title":"Ka-band MMIC LNA Design","authors":"G. Qin, Liu Jing-ping, Liu Zi-ting, Lin Hui-jun","doi":"10.1109/IMWS-AMP49156.2020.9199767","DOIUrl":"https://doi.org/10.1109/IMWS-AMP49156.2020.9199767","url":null,"abstract":"In order to better adapt to the requirements of smaller noise and better performance in low-noise amplifiers in radio communications,this article simulates and designs a 35GHz broadband monolithic microwave integrated circuit (MMIC) low noise amplifier,by adopting InGaAs pseudo-crystal high electron mobility transistor (pHEMT) process model. The circuit uses a three-stage cascaded dual power supply structure. The front-stage amplifier circuit optimizes the noise figure while ensuring a good input and output standing wave ratio. The last two stages provide maximum gain matching, which guarantees the good noise figure, gain flatness and VSWR of the overall amplifier.In addition, the source negative feedback inductance and bias network circuit of each stage are optimized to achieve a broadband output and high gain under low noise. The simulation design shows that under the working conditions of gate and drain bias voltages of -0.5V and 3V, and current of 90mA respectively, the amplifier has a minimum noise figure of less than 2dB and a maximum gain of more than 20dB in the 25-45GHz band. At 35GHz, it has a minimum noise figure of 1.702dB, a maximum gain of 24.594dB, an input standing wave ratio of 2.236 and an output standing wave ratio of 1.122.The designed low-noise amplifier can be implemented in a broadband millimeter wave transceiver system.","PeriodicalId":163276,"journal":{"name":"2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123848346","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

Conformal Metasurface for Wideband RCS Reduction 宽带RCS降频的保角超表面

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199688

Yajin Wang, Jianxun Su

引用次数: 3

A Highly Efficient 60 GHz CMOS Doherty Power Amplifier With Adaptive Gate Biases 一种具有自适应门偏置的高效60 GHz CMOS Doherty功率放大器

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199696

Run-Ze Zhan, Yuan Chun Li, Haiwei Zhang

引用次数: 0

A Reconfigurable Mixer for 1.8-5GHz Software-Defined Radios 用于1.8-5GHz软件无线电的可重构混频器

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199668

Shilpa Mehta, Xue Jun Li, A. Aneja

引用次数: 1

60 GHz Optimised Nickel-free Gold-plated Enclosed Coplanar Waveguide Liquid Crystal Phase Shifter 60 GHz优化无镍镀金封闭式共面波导液晶移相器

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199680

Jinfeng Li

{"title":"60 GHz Optimised Nickel-free Gold-plated Enclosed Coplanar Waveguide Liquid Crystal Phase Shifter","authors":"Jinfeng Li","doi":"10.1109/IMWS-AMP49156.2020.9199680","DOIUrl":"https://doi.org/10.1109/IMWS-AMP49156.2020.9199680","url":null,"abstract":"A novel nickel-free gold-plated enclosed coplanar waveguide is experimentally demonstrated for a liquid crystal tunable delay line phase shifter at 60 GHz. By numerical investigations, we find that conventional surface impedance model (without meshing inside metals) fails to accurately characterise the effect of gold-plating thickness on conductor loss, especially when the plating thickness is smaller than 4 times of the gold's skin depth. To address this, adaptive meshing inside metals is performed for accurate modelling of the device. The gold-plating thickness is then experimentally optimised and tailored for the liquid crystal-based device-making procedures, i.e. taking into account the accelerated copper migration into gold problem during the alignment agent baking process at 200°C. Measurement results of assembled phase shifters at 60 GHz verify that a direct gold plating of 2μm on Cu can reduce the insertion loss by 1.79 dB and 2.85 dB as compared with that with a thinner plating of 50 nm, and no plating, respectively. The maximum insertion loss of -2.996 dB demonstrated at 60 GHz for the 0-π phase shifter delivers a figure-of-merit of 60°/dB, an improvement of 42°/dB as compared with up-to-date literature.","PeriodicalId":163276,"journal":{"name":"2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127916179","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: 19

A Novel Ka-band Waveguide Slotted Antenna With Wide-band Dual-Polarization 一种新型宽带双极化ka波段波导开槽天线

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199736

Guodong Liu, Xiao-fei Wang, Longwei He, Suixue Wang, Shi-gang Zhou

{"title":"A Novel Ka-band Waveguide Slotted Antenna With Wide-band Dual-Polarization","authors":"Guodong Liu, Xiao-fei Wang, Longwei He, Suixue Wang, Shi-gang Zhou","doi":"10.1109/IMWS-AMP49156.2020.9199736","DOIUrl":"https://doi.org/10.1109/IMWS-AMP49156.2020.9199736","url":null,"abstract":"Satellite communication is an indispensable part of modern communication. In recent years, with the rapid rise of 5G-Technology, satellite communication is developing towards high frequency, multi-polarization, wide spectrum and multi-mode, which requires the antenna to have the characteristics of low profile, wide-band, dual-polarization and high gain. The traditional waveguide dual-polarization antenna has some disadvantages, such as narrow bandwidth of VSWR, poor cross-polarization and port-isolation and so on. In this paper, a novel dual polarization waveguide slot antenna is proposed, which has the advantages of large bandwidth, high efficiency, low cross-polarization, high port-isolation, low profile and simple structure. At the same time, a 2 × 2 array in Ka band is designed. The simulation results show that in the frequency band range of 16%, the standing-wave ratio of the two polarities is less than 2, the radiation efficiency is more than 800%, the cross-polarization is less than -25dB, and the port isolation is more than 25dB.","PeriodicalId":163276,"journal":{"name":"2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127786583","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

LTCC Wideband 1-to-4 Power Dividing Networks with 90° or 180° Output Phase Differences LTCC宽带1到4功率划分网络与90°或180°输出相位差

2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2020-07-01 DOI: 10.1109/IMWS-AMP49156.2020.9199759

W. Qin, Ling-hua Shi, Jian‐Xin Chen

引用次数: 0