Title :
Use of active networks to widen the spectrum of application of piezoelectric filters
Author :
Orlov, A.T. ; Skripov, V.F.
Author_Institution :
Dept. of Microelectron., Kiev Polytech. Inst., Ukraine
Abstract :
This paper describes the design of active bulk acoustic wave (BAW) piezoelectric filters with properties that are unattainable with inductorless passive piezoelectric filters. Circuit realizations for wideband (fractional bandwidth of between 5% and 50%) bandpass filters (BPF), low pass filters (LPF), highpass filters (HPF), band reject filters (BRF), and tunable filter sections are proposed. This class of filter eliminates the characteristic restrictions related to the properties of the piezoelectric material. The proposed approach would be useful for the design of integrated circuit (IC) compatible thin film BAW piezoelectric filters over a wide frequency range of up to 1-2 GHz
Keywords :
acoustic microwave devices; active filters; band-pass filters; band-stop filters; bulk acoustic wave devices; circuit tuning; crystal filters; high-pass filters; integrated circuit design; low-pass filters; microwave filters; 1 to 2 GHz; BAW piezoelectric filters; active bulk acoustic wave; active networks; band reject filters; cascade; highpass filters; inductance simulation; inductorless passive piezoelectric filters; integrated circuit design; low pass filters; piezoelectric filters; thin film filters; tunable filter sections; wideband bandpass filters; Acoustic waves; Band pass filters; Bandwidth; Low pass filters; Passive filters; Piezoelectric films; Piezoelectric materials; Thin film circuits; Tunable circuits and devices; Wideband;
Conference_Titel :
Frequency Control Symposium, 1994. 48th., Proceedings of the 1994 IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-1945-1
DOI :
10.1109/FREQ.1994.398304
