One-Port Resonator Operating with Surface Acoustic Waves
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United States of America Patent
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Jul 16, 2015
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Aug 19, 2014
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Abstract
The present invention relates to a one-port resonator (1) operating with surface acoustic waves, comprising an interdigital transducer (2) having a first busbar (6), a second busbar (7) and electrode fingers (8), wherein in an excitation region (10) of the interdigital transducer (2) the electrode fingers (8) are alternately connected to the first busbar (6) and the second busbar (7) in the longitudinal direction (L), wherein the interdigital transducer (2) comprises a first reversed region (11), in which the electrode fingers (8) are alternately connected to the first busbar (6) and the second busbar (7) in the longitudinal direction (L) and which is directly adjacent to the excitation region (10), and wherein that electrode finger (118) of the first reversed region (11) which is directly adjacent to the excitation region (10) in the longitudinal direction (L) and that electrode finger (118) of the excitation region (10) which is directly adjacent thereto are connected to the same busbar (6, 7).
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