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- Document type:
- Konferenzbeitrag
- Author(s):
- Weigel, R.; Bader, B.; Fischerauer, G.; Russer, P.
- Title:
- Design and performance of wide-band IIDT-type SAW filters with low loss and improved sidelobe suppression
- Abstract:
- Wideband low-loss surface-acoustic-wave (SAW) filters employing interdigitated interdigital transducers (IIDTs) suitable for cellular radio systems are presented. The filters were fabricated on 36 degrees Y-X LiTaO3 substrates. The sidelobe suppression has been improved by withdrawal weighting techniques. A design method which optimizes the weighting functions and the number of fingers has been worked out. In the 500-MHz band, fractional bandwidths of up to 5.2% with passband ripples smaller tha... »
- Keywords:
- surface acoustic wave filters, radiofrequency filters, sidelobe suppression, 1.8 dB, 500 MHz, cellular radio, interdigitated interdigital transducers, cellular radio systems, design method, IIDT-type SAW filters, LiTaO3 substrates, low loss, surface-acoustic-wave, weighting functions, wideband type, withdrawal weighting techniques
- Book / Congress title:
- Microwave Symposium Digest, 1993., IEEE MTT-S International
- Year:
- 1993
- Pages:
- 1505--1508 vol.3
- Print-ISBN:
- 0149-645X
- Fulltext / DOI:
- doi:10.1109/MWSYM.1993.276855
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