Title :
A 10-14 GHz quenchable MMIC oscillator
Author :
Dietz, G. ; Becker, R. ; Haubenstricker, R. ; Moghe, S. ; Giacomino, G.
Author_Institution :
Northrop Electron. Syst. Div., Rolling Meadows, IL, USA
Abstract :
A wideband negative-resistance MMIC (monolithic microwave integrated circuit) oscillator chip has been designed and tested for fast switching DRO (dielectric resonator oscillator) and VCO (voltage-controlled oscillator) applications. This MMIC has an on-chip quench circuit which allows for very fast switching of the oscillator without affecting the active device bias. The MMIC, which also has an on-chip resistive heater section located in close proximity to the active device, minimizes frequency drift due to temperature variations. The switching performance was measured with the chip configured as a DRO; its frequency settled within 0.6 MHz of the final frequency in only 0.5 mu s. This MMIC configured as a VCO achieved wideband tuning from 10 to 14 GHz.<>
Keywords :
MMIC; dielectric resonators; field effect integrated circuits; microwave oscillators; tuning; variable-frequency oscillators; 10 to 14 GHz; SHF; VCO; dielectric resonator oscillator; fast switching DRO; monolithic microwave integrated circuit; negative-resistance; onchip quench circuit; oscillator chip; quenchable MMIC oscillator; resistive heater section; voltage-controlled oscillator; wideband tuning; Application specific integrated circuits; Circuit testing; Electromagnetic heating; Frequency; MMICs; Microwave devices; Microwave oscillators; Switching circuits; Voltage-controlled oscillators; Wideband;
Conference_Titel :
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1991. Digest of Papers, IEEE 1991
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-0087-4
DOI :
10.1109/MCS.1991.148079
