Simple Magnetostatic Delay Lines
WESTINGHOUSE RESEARCH AND DEVELOPMENT CENTER PITTSBURGH PA PITTSBURGH
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The authors describe, through calculation and experiment, how simple, single finger, microstrip transducers may be used to demonstrate both linearly dispersive and constant delay type magnetostatic delay lines. The desired delay behavior is achieved over some useful measure of bandwidth through the influence of a close proximity ground plane to the yttrium iron garnet film. The two limitations of this technique are pointed out and one possible remedy to one of them is shown.