Accession Number:

AD0751746

Title:

Microwave Network Synthesis

Descriptive Note:

Semiannual rept. 1 Feb-31 Jul 1972,

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CA

Report Date:

1972-11-01

Pagination or Media Count:

110.0

Abstract:

The results of a theoretical and experimental study of the grating transducer are presented. The results clearly demonstrate that such a structure can couple effectively to surface acoustic waves. However the study has revealed two problem areas 1 It is difficult to prevent the parasitic capacitance to ground from dominating the electrical behavior of such transducers, and 2 the electric fields that jump over between nonadjacent electrodes can couple to surface waves and bulk waves and therefore must be taken into account in a transducer design. A possible method for improving the transducer design is discussed. A compact channel-dropping-filter geometry consisting of hairpin bandpass and folded-line bandstop filters is proposed for stripline and MIC microwave integrated circuits. Design details and theoretical and experimental data for a trial channel-dropping filter are presented.

Subject Categories:

  • Line, Surface and Bulk Acoustic Wave Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE