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Author(s):
Weigel, Robert; Bader, Bernhard; Fischerauer, Gerhard; Russer, Peter 
Title:
IIDT-Type Low-Loss SAW Filters Used in Wideband Cellular Radio Systems 
Abstract:
The design and performance of wideband low-loss surface-acoustic-wave (SAW) filters employing interdigitated interdigital transducers (IIDTs) suitable for cellular radio systems are described. The filters were fabricated on 36 deg; YX-LiTaOtextlesssubtextgreater3textless/subtextgreater substrates. A detailed design method which optimizes the IIDT configuration has been worked out. In the 500-MHz band, fractional bandwidths of up to 5.2 
Keywords:
cellular radio, design, fractional bandwidths, frequency response, insertion loss, interdigital transducers, interdigitated interdigital transducers, LiTaOtextlesssubtextgreater3textless/subtextgreater, LiTaO3, lithium compounds, passband ripples, performance, SAW filters, sidelobe suppression, surface acoustic wave filters, surface acoustic wave transducers, wideband cellular radio systems 
Book / Congress title:
IEEE Pacific Rim Conference on Communications, Computers and Signal Processing 
Volume:
Publisher address:
Victoria, BC, Canada 
Year:
1993 
Month:
may 
Pages:
722--725