A 2 W solid state transmitter for short range data communication at 60 GHz

Author

Barth, H. ; Pirkl, M.

Author_Institution

Telefunken Systemtechnik, Ulm, Germany

fYear

1990

fDate

8-10 May 1990

Firstpage

931

Abstract

Three 60-GHz power-combiners are cascaded to amplify a CW input signal of 2 mW up to 2 W. The maximum bandwidth is 1 GHz. In the first stage, the incoming signal is split into two equal portions which are amplified by two reflection-type Gunn diode amplifiers. The combined output power (20 mW) of this stage is used to injection lock the two Gunn oscillators of the second combiner. The output of that (180 mW) serves as the locking signal of the third stage, where two GaAs IMPATT diode oscillators (1.2 W each) are synchronized and power-combined. For good balance of each combiner only one isolator between the stages is required.<>

Keywords

data communication equipment; digital radio systems; microwave links; radio transmitters; solid-state microwave circuits; 1 GHz; 2 mW to 2 W; CW input signal; EHF; GaAs; Gunn oscillators; IMPATT diode oscillators; LOS system; cascaded power combiners; locking signal; millimetre wave operation; reflection-type Gunn diode amplifiers; short range data communication; solid state transmitter; Bandwidth; Data communication; Diodes; Gallium arsenide; Gunn devices; Injection-locked oscillators; Power amplifiers; Power generation; Solid state circuits; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1990., IEEE MTT-S International

Conference_Location

Dallas, TX

Type

conf

DOI

10.1109/MWSYM.1990.99731

Filename

99731