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Updated: Jul 7, 2026
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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Gigahertz range resonant devices for oscillator applications using shear horizontal acoustic waves
1Inst. of Solid State Phys., Acad. of Sci., Sofia.
Summary
Surface transverse wave (STW) resonant devices offer greater design flexibility than surface acoustic wave (SAW) devices for stable oscillators. STW resonators can be frequency trimmed using heavy ion bombardment, enhancing their application potential.
Area of Science:
- Physics
- Electrical Engineering
- Materials Science
Background:
- Surface acoustic wave (SAW) devices are widely used in electronic applications.
- Stable oscillator applications require high-performance resonant devices.
- Existing resonant device technologies have limitations in design flexibility and frequency control.
Purpose of the Study:
- To investigate surface transverse wave (STW) resonant devices as an alternative to SAW devices.
- To explore the design flexibility and performance of STW resonators for stable oscillators.
- To compare the characteristics of STW and SAW resonators and demonstrate frequency trimming techniques for STW devices.
Main Methods:
- Theoretical analysis and design of single- and multimode STW resonators and resonator filters.
- Experimental fabrication and characterization of STW and SAW two-port metal strip resonators.
- Frequency trimming of STW resonators using heavy ion bombardment.
Main Results:
- STW resonant devices demonstrate superior design flexibility compared to SAW devices.
- Various STW resonator and filter designs are presented with properties suitable for stable fundamental-mode fixed-frequency and voltage-controlled oscillators (750 MHz to 2 GHz).
- Comparative data show distinct characteristics between SAW and STW resonators with identical designs.
- Successful frequency trimming of STW resonators via heavy ion bombardment is achieved.
Conclusions:
- STW resonant devices are highly suitable for stable oscillator applications, offering enhanced design flexibility over SAW devices.
- The presented STW designs and frequency trimming method expand their applicability in advanced electronic systems.
- STW technology represents a promising advancement for high-frequency resonant device applications.
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