A comparison of weighting techniques for SAW transducers at UHF
Abstract
A comparison is made of several constant-finger-overlap, interdigital transducer-weighting schemes for realizing low sidelobe, SAW, bandpass filters between 330 and 340 MHz. Withdrawal weighting yields slightly superior performance, but source weighting allows simpler design procedures. The neglect of near-neighbor interactions (all 1's design) yields relatively poor results. Source-weighting tables are provided in an Appendix.
- Publication:
-
Report
- Pub Date:
- March 1981
- Bibcode:
- 1981radc.rept.....S
- Keywords:
-
- Electroacoustic Transducers;
- Surface Acoustic Wave Devices;
- Weighting Functions;
- Bandpass Filters;
- Frequency Ranges;
- Insertion Loss;
- Sidelobe Reduction;
- Tables (Data);
- Ultrahigh Frequencies;
- Electronics and Electrical Engineering