Title :
An MMIC active filter with 60-dB rejection
Author :
Bonetti, R.R. ; Williams, A.E. ; Duong, T. ; Gupta, R. ; Mott, R.
Author_Institution :
COMSAT Lab., Clarksburg, MD, USA
Abstract :
The design, fabrication, and characterization of a GaAs monolithic, active, 4-GHz bandpass filter with 60-dB edge-of-band rejection are described. A predistorted transfer function is realized by a set of cascaded-, lumped-, and distributed-element inductance-capacitance circuits isolated by two feedback amplifiers. The monolithic microwave integrated circuit (MMIC) consists of two identical 3-mm*2-mm GaAs chips. A remarkable advantage of this circuit over other resonant-based implementations is the absence of a second harmonic passband.<>
Keywords :
III-V semiconductors; MMIC; active filters; band-pass filters; gallium arsenide; microwave filters; transfer functions; 4 GHz; GaAs; MMIC; SHF; active filter; cascaded element; characterization; distributed-element; fabrication; feedback amplifiers; inductance-capacitance circuits; lumped element; monolithic microwave integrated circuit; predistorted transfer function; Active filters; Band pass filters; Fabrication; Feedback amplifiers; Feedback circuits; Gallium arsenide; MMICs; Microwave integrated circuits; Monolithic integrated circuits; Transfer functions;
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.1992.188212
