Surface-acoustic-wave devices for communications
- 1 May 1976
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IEEE
- Vol. 64 (5) , 652-671
- https://doi.org/10.1109/proc.1976.10190
Abstract
Surface-wave components have demonstrated performance capabilities in the VHF/UHF range which are available with no other filtering technique. The major advantages of the filters are their small size, high reliability, low cost, high Q, good reproducibility, temperature stability, wide dynamic range, and linear phase response, as well as special characteristics relevant to specific applications. Surface-acousticwave (SAW) devices are used for bandpass filtering [1], matched filtering for radar pulse compression [2], [3] or spread-spectrum signal processing [4], delay lines [5], and frequency control elements [3], [6]. Within the context of communication systems' applications, this paper reviews the state of the art for SAW components from high-performance fixed-tuned devices to tunable or programmable filters. Major technological advances discussed include unidirectional SAW filters [7] which eliminate bidirectionality loss and simultaneously suppress in-band spurious responses to achieve an insertion loss below 1 dB with a 0.04-dB peak-to-peak ripple. A novel surface-wave sub-system [8] which offers revolutionary signal processing functions through transform processing is also described.Keywords
This publication has 65 references indexed in Scilit:
- Resistive Losses in Acoustic Surface Wave Muitistrip CouplersIEEE Transactions on Sonics and Ultrasonics, 1975
- Low Insertion Loss Acoustic Surface Wave Filter Using Group-Type Unidirectional Interdigital TransducerPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1975
- Design of Unapodized Surface-Wave Transducers with Spectral WeightingIEEE Transactions on Microwave Theory and Techniques, 1974
- Unidirectional Acoustic Surface Wave Filters with 2 dB Insertion LossPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1974
- Acoustic-Surface-Wave Interdigital Hybrid-Junction TransducersIEEE Transactions on Sonics and Ultrasonics, 1974
- Surface Acoustic Wave Multistrip Components and Their ApplicationsIEEE Transactions on Microwave Theory and Techniques, 1973
- A Synthesis Procedure For Unanodized Nondispersive Surface Wave FiltersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1973
- Weighting Interdigital Surface Wave Transducers by Selective Withdrawal of ElectrodesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1973
- 500 MHz Bandwidth Surface Wave Pulse Compression FilterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1973
- Broad-Band Coupling to High-Q Resonant LoadsIEEE Transactions on Microwave Theory and Techniques, 1972