Fully integrated double balanced MMIC mixer using a star arrangement of diodes for extended IF performance

Author

Staudinger, J. ; Friesen, M.

Author_Institution

Motorola Semicond. Products Sector, Tempe, AZ, USA

fYear

1992

fDate

1-5 June 1992

Firstpage

1163

Abstract

A double balanced diode mixer with all circuitry contained on a single MMIC (monolithic microwave integrated circuit) die has been designed and fabricated. The mixer consists of four diodes arranged in a star configuration connected to several balun-type structures. The configuration allows extracting the IF (intermediate frequency) signal at a node which is a virtual ground to both LO (local oscillator) and RF signals. Thus, compared to conventional MMIC mixers, a significant improvement in extracting the IF signal to achieve a broad bandwidth performance is possible. On-chip matching circuitry is included between diodes and baluns to enhance performance across a 6-GHz IF bandwidth.<>

Keywords

MMIC; mixers (circuits); 6 GHz; IF performance; balun-type structures; broad bandwidth performance; diodes; double balanced MMIC mixer; intermediate frequency; monolithic microwave integrated circuit; onchip matching circuitry; star configuration; Bandwidth; Circuit topology; Impedance matching; MMICs; Mixers; Network topology; RF signals; Radio frequency; Schottky diodes; Semiconductor diodes;

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.1992.188203

Filename

188203