Novel monolithic ultra-wideband unilateral 4-port junction using distributed amplification techniques

Author

Robertson, I.D. ; Aghvami, A.H.

Author_Institution

Dept. of Electron. & Electr. Eng., Kings Coll., London, UK

fYear

1992

fDate

1-5 June 1992

Firstpage

1051

Abstract

A novel active unilateral 4-port junction operating over 1 to 20 GHz has been demonstrated in monolithic microwave integrated circuit (MMIC) technology, using distributed amplifier techniques, and was capable of covering an extremely wide frequency range. The circuit had unique unilateral characteristics with a relatively constant insertion loss and high isolation, and could replace isolators, circulators, and directional couplers in many ultra-wideband applications. The prototype had insertion losses of approximately 5 dB and excellent port-to-port isolation.<>

Keywords

MMIC; multiport networks; waveguide couplers; wideband amplifiers; 1 to 20 GHz; 5 dB; MMIC technology; constant insertion loss; distributed amplification techniques; high isolation; monolithic ultra-wideband unilateral 4-port junction; port-to-port isolation; Distributed amplifiers; Insertion loss; Integrated circuit technology; Isolation technology; MMICs; Microwave integrated circuits; Microwave technology; Microwave theory and techniques; Monolithic integrated circuits; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1992., IEEE MTT-S International

Conference_Location

Albuquerque, NM, USA

ISSN

0149-645X

Print_ISBN

0-7803-0611-2

Type

conf

DOI

10.1109/MWSYM.1992.188171

Filename

188171