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., London Univ., UK

fYear

1992

fDate

1-3 June 1992

Firstpage

189

Lastpage

192

Abstract

A novel active unilateral four-port junction operating over 1 to 20 GHz has been demonstrated in monolithic microwave integrated circuit (MMIC) technology, using distributed amplifier techniques. The circuit is capable of covering an extremely wide frequency range. This prototype had insertion losses of approximately 5 dB and excellent port-to-port isolation. One of the key advantages of this active technique, compared to conventional circulators and directional couplers, is that the low-frequency cutoff is limited only by the design of the bias networks.<>

Keywords

MMIC; active networks; field effect integrated circuits; 1 to 20 GHz; 5 dB; MMIC; SHF; active unilateral four-port junction; bias networks; distributed amplification; monolithic microwave integrated circuit; ultra-wideband; Distributed amplifiers; Frequency; 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 and Millimeter-Wave Monolithic Circuits Symposium, 1992. Digest of Papers, IEEE 1992

Conference_Location

Albuquerque, NM, USA

Print_ISBN

0-7803-0677-5

Type

conf

DOI

10.1109/MCS.1992.186032

Filename

186032