Title :
Miniature 8-18 GHz four channel frequency converter
Author :
Roos, S. ; Griffith, P. ; Sheehan, R. ; McMahon, F. ; Kumar, M.
Author_Institution :
American Electron. Lab. Inc., Lansdale, PA, USA
Abstract :
A state-of-the-art, 8-18-GHz front end comprising four-phase and amplitude-matched frequency converters consisting of ten selectable 1-GHz-wide subband channels has been developed. An integrated local oscillator (LO) distribution module consisting of fine dielectric resonator oscillators (DROs) operating at 11, 12, 13, 14, and 15 GHz provides the downconversion of the 8-18-GHz RF spectrum to a 2-3-GHz intermediate frequency range. The input noise figure of each converter module is 10 dB, with an associated gain of 46 dB+or-1 dB. The spurious-free dynamic range is greater than 47 dB. The DRO oscillator accuracy is +or-5 p.p.m./ degrees C over a temperature range of 0 degrees C to 50 degrees C. The downconverter utilizes a combination of microwave IC (MIC) and monolithic microwave IC (MMIC) components to obtain state-of-the-art performance in a small volume of 1966 cm/sup 3/.<>
Keywords :
MMIC; dielectric resonators; frequency convertors; microwave integrated circuits; microwave oscillators; 0 to 50 C; 1 GHz; 10 dB; 2 to 3 GHz; 46 dB; 8 to 18 GHz; DRO oscillator; MIC; MMIC; SHF; dielectric resonator oscillators; downconversion; four channel frequency converter; front end; gain; input noise figure; intermediate frequency; microwave IC; monolithic microwave IC; spurious-free dynamic range; subband channels; temperature range; volume; Dielectrics; Dynamic range; Frequency conversion; Local oscillators; MMICs; Microwave integrated circuits; Microwave oscillators; Monolithic integrated circuits; Noise figure; Radio frequency;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99680
