Design of a 20-to-40 GHz bandpass MMIC amplifier

Author

Jia-Liang Chen ; Sheng-Fuh Chang ; Cherng-Cherng Liu ; Hsi-Wei Kuo

Author_Institution

Dept. of Electr. Eng., Nat. Chung Cheng Univ., Taiwan

Volume

2

fYear

2003

Firstpage

1275

Abstract

A millimeterwave bandpass MMIC amplifier, which integrates both features of gain amplifier and bandpass filter, is presented. A synthesis method for such amplifier is developed from the image-parameter filter theory. By employing the proposed bandpass amplifier in a receiver, the bulky of chip filter may not be required. An experimental chip fabricated by 0.1 /spl mu/m PHEMT shows 14.2dB gain from 20 to 40 GHz and 60-dB attenuation below 7 GHz and above 60 GHz. This confirms the proposed method and shows the feasibility of the function integration of gain amplifier with bandpass filter in the millimeterwave range.

Keywords

HEMT integrated circuits; MMIC amplifiers; field effect MMIC; millimetre wave amplifiers; 0.1 micron; 14.2 dB; 20 to 40 GHz; PHEMT process; bandpass filter; gain amplifier; image parameter filter theory; millimeter-wave bandpass MMIC amplifier; synthesis method; Attenuation; Band pass filters; Broadband amplifiers; Circuit synthesis; Filtering theory; Low-noise amplifiers; MMICs; PHEMTs; Radio frequency; Radiofrequency amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2003 IEEE MTT-S International

Conference_Location

Philadelphia, PA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7695-1

Type

conf

DOI

10.1109/MWSYM.2003.1212602

Filename

1212602