Title :
A high-gain 50-GHz-band monolithic balanced gate mixer with an external IF balun
Author :
Kawakami, Kenji ; Uehara, Naohisa ; Matsuo, Koichi ; Kashiwa, Takuo ; Itoh, Kenji ; Isota, Yoji ; Ishida, Osami
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan
fDate :
6/1/1998 12:00:00 AM
Abstract :
This paper presents a 90-GHz-band high-gain monolithic balanced gate mixer. IF impedance of the balanced gate mixer is approximated from a small-signal equivalent circuit, and conversion gain of the mixer is improved by using an external IF balun with high impedance-transforming ratio. The maximum conversion gain of 8.2 dB is achieved at LO power of 0 dBm. Effectiveness of the described mixer is confirmed experimentally
Keywords :
HEMT integrated circuits; MMIC mixers; baluns; field effect MIMIC; impedance matching; millimetre wave mixers; 50 GHz; 8.2 dB; EHF; conversion gain improvement; external IF balun; high-gain MM-wave mixer; monolithic balanced gate mixer; small-signal equivalent circuit; Circuit topology; Filters; HEMTs; Impedance matching; Millimeter wave circuits; Millimeter wave communication; Millimeter wave radar; Millimeter wave technology; Millimeter wave transistors; Schottky diodes;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
