Title :
Gigahertz range resonant devices for oscillator applications using shear horizontal acoustic waves
Author :
Avramov, Ivan D.
Author_Institution :
Inst. of Solid State Phys., Acad. of Sci., Sofia, Bulgaria
Abstract :
It is shown that surface transverse wave (STW) resonant devices are not only very well suited for stable oscillator applications but have some unique features offering greater design flexibility than their surface acoustic wave (SAW) counterparts. Various designs for single- and multimode resonators and resonator filters are presented, and their properties in respect to applications in stable fundamental-mode fixed-frequency and voltage-controlled oscillators in the range of 750 MHz to 2 GHz are discussed. Characteristics of SAW and STW two-port metal strip resonators using identical designs are compared. Data from frequency trimming on STW resonators, using heavy ion bombardment, are presented.<>
Keywords :
crystal resonators; radiofrequency oscillators; surface acoustic wave devices; variable-frequency oscillators; 750 MHz to 2 GHz; STW resonators; UHF; VCO; VFO; fixed-frequency; frequency trimming; fundamental-mode; gigahertz range; heavy ion bombardment; multimode design; resonant devices; shear horizontal acoustic waves; single-mode design; stable oscillator applications; surface transverse wave; two-port metal strip resonators; voltage-controlled oscillators; Acoustic propagation; Acoustic waves; Delay lines; Frequency; Microwave oscillators; Resonance; Strips; Surface acoustic wave devices; Surface acoustic waves; Voltage-controlled oscillators;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
