Title :
Design of piezoelectric resonant filter with tunable bandwidth
Author :
Chen, Jian ; Chen, Deyong
Author_Institution :
Inst. of Electron., CAS, Beijing
Abstract :
In this paper the design of piezoelectric resonant filter with tunable bandwidth is introduced. The distributed piezoelectric finite element model of resonant filter is proposed. By means of static analysis and modal analysis of piezoelectric finite element model based on ANSYS, the specific value of lumped model of piezoelectric resonator of a specific example is obtained. Based on this lumped model, the effect of tunable capacitor or tunable inductor in parallel with the piezoelectric resonator on bandwidth is discussed. The simulation of electrical circuits with distributed piezoelectric finite element model is conducted which verifies that only one piezoelectric resonator in parallel with a well chosen micro-machined tunable inductor can behave as a band-pass filter
Keywords :
capacitors; crystal filters; crystal resonators; finite element analysis; inductors; lumped parameter networks; ANSYS; band-pass filter; distributed piezoelectric finite element model; electrical circuits; lumped model; micromachined tunable inductor; modal analysis; piezoelectric resonant filter; piezoelectric resonator; static analysis; tunable bandwidth; tunable capacitor; Band pass filters; Bandwidth; Capacitors; Circuit simulation; Finite element methods; Inductors; Modal analysis; Resonance; Resonator filters; Tunable circuits and devices;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306355
