DocumentCode :
2686316
Title :
UHF Film Resonator Evaluation and Resonator-Controlled Oscillator and Filter Design Using Computer-Aided Design Techniques
Author :
Driscoll, M.M. ; Krishnaswamy, S.V. ; Moore, R.A. ; Szedon, J.R.
fYear :
1985
fDate :
4-6 June 1985
Firstpage :
239
Lastpage :
242
Abstract :
RF magnetron-sputtered piezoelectric films on silicon semiconductor substrates provide the basis for high Q, temperature-stable, bulk acoustic resonators in monolithic, UHF signal processing circuits. This paper describes the design of UHF oscillators using such resonators as the frequency-controlling elements. RF circuit analysis/optimization software has been used for determining resonator equivalent electrical circuit parameters and oscillator sustaining-stage optimum small-signal impedance characteristics, based on automated measurement of resonator and transistor S-parameters. Oscillator circuits have been designed for potential implementation using silicon and GaAs technology. A prototype oscillator has been fabricated that is realizable in monolithic form and allows resonator utilization as a one port. Measurement of oscillator output-signal phase-noise sideband spectra indicates achievement of L(f) = -110 dB/Hz at 1 kHz carrier offset frequency.
Keywords :
Circuits; Design automation; Film bulk acoustic resonators; Magnetic separation; Oscillators; Piezoelectric films; Radio frequency; Resonator filters; Semiconductor films; Silicon;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Symposium Digest, 1985 IEEE MTT-S International
Conference_Location :
St. Louis, MO, USA
ISSN :
0149-645X
Type :
conf
DOI :
10.1109/MWSYM.1985.1131951
Filename :
1131951
Link To Document :
بازگشت