Impedance element SAW filters

Author

Heighway, James ; Kondratyev, Sergei N. ; Plessky, Victor P.

Author_Institution

Adv. SAW Prods. SA, Bevaix, Switzerland

fYear

1994

fDate

1-3 Jun 1994

Firstpage

374

Lastpage

378

Abstract

Over the last few years a new generation of surface acoustic wave (SAW) devices with low loss and operating at high frequency have been invented to meet the demand of mobile communication systems. Besides outstanding electrical characteristics, these filters need to have small size and weight, must be highly reproducible, need no tuning, must be very cheap and if necessary, able to handle power levels up to a few Watts. In this work we introduce a new class of SAW filters-balanced bridge impedance element filters-which have all these advantages: low insertion loss, extremely small size and weight, a wide variety of centre frequencies and passbands, excellent suppression in the stopband and require no external matching circuits

Keywords

bridge circuits; mobile communication; surface acoustic wave filters; electrical characteristics; impedance element SAW filters; low insertion loss; mobile communication systems; passbands; small size; small weight; Acoustic waves; Electric variables; Frequency; Matched filters; Mobile communication; SAW filters; Surface acoustic wave devices; Surface acoustic waves; Surface impedance; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 1994. 48th., Proceedings of the 1994 IEEE International

Conference_Location

Boston, MA

Print_ISBN

0-7803-1945-1

Type

conf

DOI

10.1109/FREQ.1994.398309

Filename

398309