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Patent Application
App. No. 15/315,366

One-Port Resonator Operating with Surface Acoustic Waves

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Quick Facts
Patent No.
US None
App. No.
15/315,366
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 ).

Claims (6)

1 . 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 ).

2 - 13 . (canceled)

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2017
From: EPCOS AG
To: SNAPTRACK, INC.
Reel/Frame 041608/0145 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 27, 2017
From: ROESLER, ULRIKE; RUILE, WERNER; BERGMANN, ANDREAS; MEISTER, VEIT
To: EPCOS AG
Reel/Frame 041107/0300 →