Researchers in the Department of Electrical Engineering have developed a cavity demonstrating resonance through polarization standing waves.
Resonator is one of the fundamental building blocks for microwave and RF devices. Conventional resonators, such as microstrip resonators, are limited by their low RF handling power and quality factor, Q, a parameter associated with energy losses within the cavity. Other resonators, such as waveguide resonators, have higher quality factors but tuning their frequency is difficult.
Researchers at UCLA have developed a cavity resonator with high RF power handling, high quality factor, and easy tunability. The waveguide cavity demonstrates resonance through a polarization standing wave, resulting in cavity size reduction. The resonator quality factor is 60X greater than microstrip resonators. The easy frequency tunability creates a structure much cheaper than conventional waveguide cavities and provides an easier and more robust frequency tuning mechanism for mm-waves and THz region.
|United States Of America||Issued Patent||10,615,473||04/07/2020||2017-878|
Waveguide cavity, resonant cavity, frequency tuning, polarization standing wave, resonance