A 20-50 GHz reconfigurable matching network for power amplifier applications

Author

Vähä-Heikkilä, T. ; Rebeiz, G.M.

Author_Institution

Michigan Univ., Ann Arbor, MI, USA

Volume

2

fYear

2004

fDate

6-11 June 2004

Firstpage

717

Abstract

A reconfigurable matching network has been developed and it is based on loaded line techniques. It consists of 8 switched MEMS capacitors producing 256 (2⁸) different impedances and is only 1×2.5 mm in size on a glass substrate. The network is ideally suited to match power amplifiers with 10-20 Ω output impedance to 50-60 Ω systems at 20-50 GHz. The estimated loss of the network is only 1-1.5 dB at 40 GHz while matching a 10-20 Ω load to a 50 Ω load. The reconfigurable network can also be used as an impedance tuner in noise parameter and load-pull measurements of active devices at 30-65 GHz.

Keywords

impedance matching; micromechanical devices; noise; power amplifiers; 1 to 1.5 dB; 10 to 20 ohm; 2.5 mm; 20 to 65 GHz; 50 to 60 ohm; MEMS capacitors; SiO₂; active devices; glass substrate; impedance tuner; load pull measurements; microelectromechanical system; noise parameter; power amplifier; reconfigurable matching network; Active noise reduction; Capacitors; Frequency; Impedance; MMICs; Micromechanical devices; Microswitches; Power amplifiers; Radiofrequency microelectromechanical systems; Tuners;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2004 IEEE MTT-S International

ISSN

0149-645X

Print_ISBN

0-7803-8331-1

Type

conf

DOI

10.1109/MWSYM.2004.1339059

Filename

1339059