Passive FET MMIC linearizers for C, X and Ku-band satellite-applications

Author

Katz, A. ; Moochalla, S. ; Klatskin, J.

Author_Institution

Trenton State Coll., NJ, USA

fYear

1993

fDate

14-15 June 1993

Firstpage

155

Lastpage

158

Abstract

The design and measured performance of GaAs monolithic-microwave-integrated circuit (MMIC) linearizers for use with spaceborne traveling-wave-tube amplifiers (TWTAs) are presented. The linearizers operate at C-, X- and Ku-band and are believed the first to be realized in MMIC form. They are based on a passive FET design similar to that of MMIC switches and attenuators. MESFET varactors and voltage variable resistors are used as control elements. They provide more than 2.5 GHz of bandwidth at Ku-band with an improvement of greater than 10 dB in TWTA carrier-to-intermodulation ratio (C/I), and with a phase change of less than 5 degrees .<>

Keywords

III-V semiconductors; MMIC; field effect integrated circuits; gallium arsenide; linearisation techniques; microwave amplifiers; satellite relay systems; travelling-wave-tubes; 2.5 GHz; C-band; GaAs; Ku-band; MESFET varactors; MMIC linearizers; SHF; X-band; monolithic-microwave-integrated circuit; passive FET design; satellite-applications; spaceborne TWT amplifier; traveling-wave-tube amplifiers; voltage variable resistors; Attenuators; Circuits; FETs; Field effect MMICs; Gallium arsenide; MESFETs; Resistors; Switches; Varactors; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1993. Digest of Papers., IEEE 1993

Conference_Location

Atlanta, GA, USA

Print_ISBN

0-7803-1322-4

Type

conf

DOI

10.1109/MCS.1993.247455

Filename

247455