Title :
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
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;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.188203
