Title :
Monolithic IMPATT millimeter-wave oscillator stabilized by open-cavity resonator
Author :
Shillue, W.P. ; Wong, S.-C. ; Stephan, K.D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA
Abstract :
A monolithic IMPATT (impact avalanche transit time) oscillator operating in the 50-GHz region has been controlled in frequency in an open microwave resonator. The noise spectrum of the oscillator in a closed quasi-optical cavity showed substantial improvement when compared to oscillation in free-space. These results show that monolithic circuits are compatible with open-resonator techniques, which can lead to improved monolithic oscillator stability.<>
Keywords :
IMPATT diodes; MMIC; cavity resonators; frequency stability; microwave oscillators; 50 GHz; EHF; IMPATT; MM wave circuit; closed quasi-optical cavity; impact avalanche transit time; millimeter-wave oscillator; monolithic circuits; noise spectrum; open-cavity resonator; oscillator stability; Coaxial components; Coupling circuits; Diodes; Frequency; Microstrip resonators; Microwave oscillators; Millimeter wave circuits; Millimeter wave technology; Optical resonators; Phased arrays;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38830
