Microwave oscillators stabilized with surface transverse wave resonant devices

The author attempts to demonstrate that surface transverse wave (STW) resonant devices are not only well suited for stable oscillator applications but also have some unique features offering greater design flexibility than their SAW counterparts. Different designs of single and multimode resonators and resonator filters are presented, and their performance in fixed frequency and voltage controlled oscillators in the range of 750 MHz to 2 GHz is discussed. Data from frequency trimming, wideband frequency modulation (FM), injection locking, and temperature stability as well as results from phase noise and short-term stability measurements are presented.<>