Title :
1 GHz low loss coupled resonator filter using surface skimming bulk waves and Bleustein-Gulyaev waves
Author_Institution :
Inst. of Solid State Phys., Sofia, Bulgaria
Abstract :
A three-pole coupled resonator filter (CRF) based on the simultaneous excitation of surface skimming bulk waves (SSBW) and Bleustein-Gulyaev waves (BGW) with the same magnitude is described. This device operates at 1 GHz, has an insertion loss of 3-4 dB, a typical 1 dB bandwidth of 0.15% and can dissipate a power of more than 2 W on a quartz substrate area of 3 mm2.
Keywords :
microwave filters; radiofrequency filters; resonators; solid-state microwave devices; surface acoustic wave filters; 1 GHz; 2 W; 3 to 4 dB; Bleustein-Gulyaev waves; UHF; coupled resonator filter; low loss; surface skimming bulk waves; three-pole type;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910262
