RF MEMS based impedance matching networks for tunable multi-band microwave low noise amplifiers

Author

Malmqvist, R. ; Rantakari, P. ; Samuelsson, C. ; Lahti, M. ; Cheng, S. ; Saijets, J. ; Vähä-Heikkilä, T. ; Rydberg, A. ; Varis, J.

Author_Institution

FOI Swedish Defence Res. Agency, Linkoping, Sweden

Volume

1

fYear

2009

fDate

12-14 Oct. 2009

Firstpage

303

Lastpage

306

Abstract

In this paper, we present different types of reconfigurable RF MEMS based matching networks intended for frequency-agile (multi-band) LNAs. Measured results of 2-bits matching networks show a centre frequency tuning range of 2-3 GHz (10-13%) around 20 GHz and 1.5-2.0 dB of minimum losses. Simulated tunable LNA results based on measured data of the RF MEMS matching networks show the possibilities of achieving similar high gain, good matching and low NF over the whole tuning range. The results demonstrate the potential of using RF MEMS switches for the realization of tunable LNAs at microwave and millimetre-wave frequencies.

Keywords

circuit tuning; impedance matching; low noise amplifiers; microswitches; microwave amplifiers; microwave switches; MEMS switches; RF MEMS based matching networks; frequency 2 GHz to 3 GHz; frequency-agile LNA; impedance matching; loss 1.5 dB to 2.0 dB; tunable multiband microwave low noise amplifier; Frequency measurement; Gain measurement; Impedance matching; Loss measurement; Low-noise amplifiers; Microwave amplifiers; Noise measurement; Radiofrequency amplifiers; Radiofrequency microelectromechanical systems; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference, 2009. CAS 2009. International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-4244-4413-7

Type

conf

DOI

10.1109/SMICND.2009.5336539

Filename

5336539