A 5.2 GHz variable gain LNA MMIC for adaptive antenna combining

Author

Ellinger, F. ; Lott, U. ; Bachtold, W.

Author_Institution

Lab. for Electromagn. Fields & Microwave Electron., Fed. Inst. of Technol., Zurich, Switzerland

Volume

2

fYear

1999

fDate

13-19 June 1999

Firstpage

501

Abstract

A variable gain LNA was designed for HIPERLAN I. A noise figure of only 1.7 dB is measured at a gain of 14.5 dB and a power consumption of 9 mW (V/sub DC/=3 V, I/sub DC/=3 mA). Over an amplitude control range of 20 dB, the third order intercept point at the input is higher than -10 dBm, the spurious free dynamic range is higher than 55 dB and noise performance does not effectively degrade. Noise and intermodulation performance of different amplitude control methods as well as the required resolutions for D/A converters are investigated.

Keywords

MMIC amplifiers; adaptive antenna arrays; antenna accessories; field effect MMIC; gain control; integrated circuit design; integrated circuit noise; intermodulation; wireless LAN; 1.7 dB; 14.5 dB; 3 V; 3 mA; 5.2 GHz; 9 W; HIPERLAN I; adaptive antenna combining; amplitude control range; intermodulation performance; noise performance; variable gain LNA MMIC; Adaptive arrays; Antenna measurements; Dynamic range; Energy consumption; Gain measurement; MMICs; Noise figure; Noise level; Noise measurement; Power measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1999 IEEE MTT-S International

Conference_Location

Anaheim, CA, USA

Print_ISBN

0-7803-5135-5

Type

conf

DOI

10.1109/MWSYM.1999.779811

Filename

779811