IEEE MTT-S International Microwave Symposium Digest, 2003最新文献_第2页

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1210941

A. Alú, N. Engheta

引用次数: 18

A recursive scheme for MESFET nonlinear current coefficient evaluation applied in Volterra-series analysis 一种用于伏特拉序列分析的MESFET非线性电流系数计算递归格式

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1210976

Chien-Chang Huang, Han-Ting Pai

引用次数: 4

Enhancement mode GaAs PHEMT LNA with linearity control (IP3) and phased matched mitigated bypass switch and differential active mixer 增强模式GaAs PHEMT LNA具有线性控制(IP3)和相位匹配减轻旁路开关和差动有源混频器

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1210438

S. Kumar, M. Vice, H. Morkner, W. Lam

{"title":"Enhancement mode GaAs PHEMT LNA with linearity control (IP3) and phased matched mitigated bypass switch and differential active mixer","authors":"S. Kumar, M. Vice, H. Morkner, W. Lam","doi":"10.1109/MWSYM.2003.1210438","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210438","url":null,"abstract":"A new front end IC has been designed using a single supply enhancement mode GaAs PHEMT 0.5 /spl mu/m process for WCDMA and other wireless applications. This front end has a single ended LNA, single ended in and differential out active balanced mixer with integrated LO, active balun, and buffer amplifier. The LNA also has CMOS logic controllable linearity (IP3) control and a phased matched mitigated bypass switch. The LNA draws 8.5 mA current when switched to high linearity mode and has 15 dB gain, 1 dB NF, -6 dBm IP/sub 1dB/ and 7.3 dBm IIP3. In low linearity mode, it draws 3.5 mA current and has 14 dB gain, 1.1 dB NF, -6 dBm IP/sub 1dB/ and 2 dBm IIP3. In LNA bypass mode, the total bypass loss is <3.5 dB and has 7 dB NF, 5 dBm IIP3 and it draws /spl sim/1 mA current. Also, the bypass switch circuit has an integrated active phase shift network which maintains a phase difference of <25/spl deg/ with LNA ON modes. In all conditions, the LNA/switch combo has >10 dB I/O return loss. The mixer, with active balun and buffer amplifier, consumes 8 mA current and has 12 dB gain, 7 dB noise figure, 0 dBm IIP3 and provides a differential IF out with a differential impedance of about 1000 ohms. The above performance is measured at 2.14 GHz for WCDMA applications.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122988235","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: 21

Mitigation of correlated non-linearities in digital phased arrays using channel-dependent phase shifts 利用信道相关相移缓解数字相控阵中的相关非线性

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1210426

L. Howard, N.K. Simon, D. Rabideau

{"title":"Mitigation of correlated non-linearities in digital phased arrays using channel-dependent phase shifts","authors":"L. Howard, N.K. Simon, D. Rabideau","doi":"10.1109/MWSYM.2003.1210426","DOIUrl":"https://doi.org/10.1109/MWSYM.2003.1210426","url":null,"abstract":"In an active phased array, each Transmitter/Receiver Module (TRM) performs a set of approximately linear functions (e.g., amplification, mixing, etc.) with the resulting signals later combined via beamforming techniques. Since these nearly-linear functions are performed prior to beamforming, it is theoretically possible to improve upon the dynamic range (DR) of each TRM through post-module array integration gain. It has been demonstrated, however, that DR enhancement may be limited by correlated nonlinear distortion (i.e., correlated from module to module). A general technique that ensures nonlinearities do not add constructively from module to module has been proposed recently, and verified experimentally for a special case. Another special case of the general technique has been described analytically, but with no experimental verification. In this paper, we correct a flaw in this analysis, and extend it. Measurements on a thirteen channel digital phased array demonstrate that introducing random phase shifts into an array can substantially mitigate nonlinear distortion, thus improving DR over the array.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114143493","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: 16

Realization of a 150 GHz to 450 GHz tripler circuit based on a thin dielectric HMDS-N-membrane 基于薄介质hmds - n膜的150 ~ 450 GHz三倍频电路的实现

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1212481

K. Duwe, J. Muller

引用次数: 2

A novel phased array based on the extended resonance power dividing technique 一种基于扩展谐振功率分频技术的新型相控阵

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1210516

A. Tombak, A. Mortazawi

引用次数: 2

Application of CPW based spiral-shaped defected ground structure to the reduction of phase noise in V-band MMIC oscillator 基于CPW的螺旋形缺陷接地结构在v波段MMIC振荡器相位噪声降低中的应用

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1210614

Young-Taek Lee, Jongsik Lim, Sungwon Kim, Jaechun Lee, S. Nam, K. Seo, D. Ahn

引用次数: 24

An adjoint variable method for time domain TLM with fixed structured grids 固定结构网格时域TLM的伴随变量法

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1212565

M. Bakr, N. Nikolova

引用次数: 42

Modes on the standard and inverted conductor-backed slotline 标准和反向导体背槽线上的模式

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1212463

J. Zehentner, J. Macháč, J. Mrkvica, C. Tuzi

引用次数: 8

New predistortion method using phase modulation with envelope signal 基于包络信号的相位调制预失真新方法

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI: 10.1109/MWSYM.2003.1212618

H. S. Jang, H. T. Jeong, C. Kim, Ik-Soo Chang

引用次数: 1