Title :
A 60 GHz uniplanar MMIC 4X subharmonic mixer
Author :
Chapman, M.W. ; Raman, S.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
A uniplanar GaAs MMIC subharmonic mixer has been designed and fabricated using an antiparallel diode pair in finite ground coplanar (FGC) waveguide technology. This mixer is designed to operate over an RF range of 58.5-60.5 GHz, an IF range of 1.5-2.5 GHz, and an LO frequency range of 14-14.5 GHz. Of several mixer configurations tested, the best results show a maximum conversion loss of 13.2 dB over the specified frequency range with a minimum LO power of 3 dBm. The minimum upper sideband conversion loss is 11.3 dB at an RF of 58.5 GHz and an IF of 2.5 GHz. This represents excellent performance for a 4X subharmonic mixer operating at 60 GHz.
Keywords :
MMIC mixers; Schottky diode mixers; coplanar waveguides; gallium arsenide; millimetre wave mixers; 11.3 dB; 13.2 dB; 60 GHz; GaAs; Schottky mixer; antiparallel diode pair; finite ground CPW technology; high-performance; maximum conversion loss; minimum upper sideband conversion loss; uniplanar MMIC subharmonic mixer; Attenuation; Coplanar waveguides; Diodes; Frequency conversion; MMICs; Mixers; Oscillators; Planar waveguides; Radio frequency; Topology;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.966847
