Title :
GaAs MESFET dual-gate mixer with active filter design for Ku-band applications
Author :
Chang-Ho Lee ; Sangwoo Han ; Laskar, J.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
We present the design of an active filter to suppress the LO noise, spurious and harmonics of an upconversion mixer for Ku-band (12/spl sim/18 GHz) applications. This filter, when combined with the dual-gate mixer, can replace the need for a balanced topology with comparable performance. The conversion loss and harmonics suppression is improved by more than 15 dB and 20 dB, respectively. Such a filter is more compact and flexible than the widely used balanced topology.
Keywords :
III-V semiconductors; MESFET integrated circuits; MMIC mixers; active filters; field effect MMIC; gallium arsenide; harmonics suppression; interference suppression; microwave filters; 12 to 18 GHz; GaAs; GaAs MESFET dual-gate mixer; Ku-band applications; LO noise suppression; SHF; active filter design; harmonics suppression; upconversion mixer; Active filters; Application software; FETs; Gallium arsenide; MESFETs; Power harmonic filters; Radio frequency; Satellite communication; Topology; Transmitters;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779890
