Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)最新文献_第6页

Harmonic retrieval in colored non-Gaussian noise using cumulant and autocorrelation 基于累积量和自相关的有色非高斯噪声谐波恢复

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709181

Yan Zhang, Shuxun Wang

引用次数: 3

A new circuit topology to realize high efficiency, high linearity, and high power microwave amplifiers 一种新的电路拓扑结构，可实现高效率、高线性度、高功率的微波放大器

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709200

D. Upton, P. Maloney

{"title":"A new circuit topology to realize high efficiency, high linearity, and high power microwave amplifiers","authors":"D. Upton, P. Maloney","doi":"10.1109/RAWCON.1998.709200","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709200","url":null,"abstract":"The unexpected and unprecedented growth in demand for increased communications capacity by telecommunications consumers has led to the implementation of a variety of multi-spectral digital modulation techniques. All of these have in common the need for improved amplifier linearity in order to be practical or to co-exist with other users in the same spectrum. Many systems also mandate that the amplifier efficiency be as high as possible to extend the operating time of portable or self-contained power sources. In addition to the above, many systems desire relatively high power outputs to be obtained for improving reliability or availability. A workable compromise is difficult to achieve for any given set of parameters. Much effort in the literature is devoted to designs of amplifiers that seek to meet the above requirements. In this paper, work that was reported previously is extended to a more general higher power case by introducing a previously unknown circuit topology variation of a microwave Doherty amplifier. The new topology shown easily extends the load line modulation principle to higher power designs while also providing a design technique that avoids many of the complications of two tightly coupled interactive stages. A brief review of previous work is included for completeness.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128831706","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: 33

Highly efficient linear power amplifier for 3.5 volt NADC cellular applications 高效线性功率放大器，用于3.5伏NADC蜂窝应用

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709199

J. Staudinger, G. Norris, R. Sherman, G. Sadowniczak

{"title":"Highly efficient linear power amplifier for 3.5 volt NADC cellular applications","authors":"J. Staudinger, G. Norris, R. Sherman, G. Sadowniczak","doi":"10.1109/RAWCON.1998.709199","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709199","url":null,"abstract":"A highly efficient linear power amplifier has been developed for North American Digital Cellular (NADC) mobile radio telephones operating with 3.5 volt batteries. The amplifier consists of two cascaded gain stages to achieve 25 dB gain at greater than 1 W output power with a corresponding power added efficiency of 50% at IS-136 specified ACPR linearity levels. The amplifier is realized using GaAs PHEMT devices to provide superior performance in optimizing the efficiency/linearity trade-off for this digital modulation format. Size of the amplifier is minimized by placing most of the circuitry on a single GaAs IC. An exception is the output matching circuitry where high Q lumped elements are selected to minimize loss. The circuit topology is chosen based on a design methodology where a large signal model of the PHEMT device is combined with behavior analysis techniques such that performance of the amplifier is simulated for a /spl pi//4 DQPSK modulated signal. This approach proved successful in sizing the FET devices as well as examining the performance improvements offered in using selected fundamental and harmonic terminations.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130248407","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

Comparison of antenna diversity schemes 天线分集方案的比较

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709161

B. Gavilanes-Loureiro, I. De Coster, E. V. Van Lil, F. Pérez-Fontán

引用次数: 2

Interference resistant modulation using transform domain processing 采用变换域处理的抗干扰调制

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709163

C. Bergstrom, J. S. Chuprun

引用次数: 1

Design of an integrated RF filter for the direct digitization front end of a dual GPS/GLONASS software radio receiver 用于双GPS/GLONASS软件无线电接收机直接数字化前端的集成射频滤波器设计

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709190

C. Brinegar, K. Naishadham

引用次数: 0

N dimensional orthogonal QPSK signaling with discrete prolate spheroidal sequences 离散长球面序列的N维正交QPSK信号

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709137

D.M. Gruenbacher, D. Hummels

引用次数: 3

A cost-effective approach to a short-range, high-speed radio design in the U-NII 5.x GHz band u - nii5中短程高速无线电设计的一种经济有效的方法。x GHz频段

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709154

M. Soyuer, H. Ainspan, J. Burghartz, J. Plouchart, B. Gaucher, T. Beukema, F. J. Canora, E. Pilmanis, M. Oprysko

引用次数: 9

An improved lumped-element equivalent circuit for on silicon integrated inductors 一种改进的硅集成电感集总元件等效电路

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709196

P. Arcioni, R. Castello, L. Perregrini, E. Sacchi, F. Svelto

引用次数: 13

MM-wave wireless access technology for the wideband wireless local loop applications 毫米波无线接入技术适用于宽带无线本地环路

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709123

H. Izadpanah, D. Gregoire, J. Schaffner, H. Hsu

引用次数: 12