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Author(s):
Müller, Günter; Machui, Jürgen; Reindl, Leonhard; Weigel, Robert; Russer, Peter 
Title:
Design of a Low Loss SAW Reflector Filter with Extremely Wide Bandwidth for Mobile Communication Systems 
Abstract:
The design and performance of a low-loss surface acoustic wave (SAW) reflector filter are presented. The structure is a dual-track configuration incorporating two interdigital transducers (IDTs) and reflectors in each track. Extremely wide bandwidth can be obtained if chirped IDTs and reflectors are used. From the theoretical conditions for low-loss operation of the reflector filter, a design rule for the distances between the chirped components and for their lengths is derived. Because the tran...    »
 
Keywords:
128°, 200 MHz, 4 dB, broadband operation, chirped IDTs, chirped reflectors, dual-track configuration, finger-width-weighting, interdigital transducers, LiNbO3, losses, low-loss operation, mobile communication systems, mobile radio systems, passband distortions, phase-weighting, radiofrequency filters, RF filters, SAW reflector filter, shape factor, stopband rejection, surface acoustic wave, surface acoustic wave filters, synthesis method, transfer function, transfer functions, VHF, wideband oper...    »
 
Journal title:
IEEE Transactions on Microwave Theory and Techniques 
Year:
1993 
Journal volume:
41 
Month:
dec 
Journal issue:
12 
Pages contribution:
2147--2155