A 5.2 GHz variable gain LNA MMIC for adaptive antenna combining

Author

Ellinger, Frank ; Lott, Urs ; Bachtold, Werner

Author_Institution

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

fYear

1999

fDate

1999

Firstpage

197

Lastpage

200

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_DC=3 V, I_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 noise; wireless LAN; 1.7 dB; 14.5 dB; 3 V; 3 mA; 5.2 GHz; 9 mW; HIPERLAN I receivers; SHF; adaptive antenna combining; amplitude control range; intermodulation performance; low noise amplifier; noise performance; spurious free dynamic range; third order intercept point; 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

Radio Frequency Integrated Circuits (RFIC) Symposium, 1999 IEEE

Conference_Location

Anaheim, CA

ISSN

1097-2633

Print_ISBN

0-7803-5604-7

Type

conf

DOI

10.1109/RFIC.1999.805270

Filename

805270