A building bloc approach to the design of large bandwidth SAW filters
Abstract
The paper proposes a new method for the design of large bandwidth SAW filters, which is based on a combination of several interdigital transducers (IDT) with uniform overlap to allow development of the overall frequency response of the filter by means of a frequency sampling. Each IDT is formed with a limited number of fingers so that the overall dimensions are contained. A prototype filter is designed with the proposed method, and the performance of the filter is analyzed and compared with theoretical requirements of the design. The design requires an optimization procedure to obtain the desired tolerances in the frequency response of the filter.
- Publication:
-
Alta Frequenza
- Pub Date:
- April 1982
- Bibcode:
- 1982AlFr...51...52S
- Keywords:
-
- Bandpass Filters;
- Electronic Filters;
- Piezoelectric Transducers;
- Surface Acoustic Wave Devices;
- Systems Engineering;
- Broadband;
- Network Synthesis;
- Electronics and Electrical Engineering