Title:
【発明の名称】近接結合を有する差動入出力弾性表面波デバイス
Document Type and Number:
Japanese Patent JP2957159
Kind Code:
B2
Abstract:
The resonator structure has a number of parallel channels with proximity coupling. The channels can be numerically rotated. The first acoustic channel (1) has 2 transducers each with two bus connections (10,11,12,13) and extending electrodes. The bus connections are connected in parallel between them forming a first (E+) and second (E-) differential port. The two differential sections are electrically symmetrical. A second channel (2) has a third port (S).
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Inventors:
MARUKU SORARU
PIEERU DEYUFUIRI
PIEERU DEYUFUIRI
Application Number:
JP10749898A
Publication Date:
October 04, 1999
Filing Date:
April 17, 1998
Export Citation:
Assignee:
TOMUSON SA
International Classes:
H03H9/145; H03H9/00; H03H9/02; H03H9/25; H03H9/64; (IPC1-7): H03H9/145; H03H9/25; H03H9/64
Domestic Patent References:
| JP1120110A | ||||
| JP9331232A | ||||
| JP9505706A |
Other References:
Ｂ．Ｗａｌｌ，Ａ．ｄｕ Ｈａｍｅｌ’Ｂａｌａｎｃｅｄ Ｄｒｉｖｅｎ Ｔｒａｎｓｖｅｒｓｅｌｙ Ｃｏｕｐｌｅｄ Ｗａｖｅｇｕｉｄｅ Ｒｅｓｏｎａｔｏｒ Ｆｉｌｔｅｒｓ’，１９９６ ＩＥＥＥ ＵＬＴＲＡＳＯＮＩＣＳ ＳＹＭＰＯＳＩＵＭ，ｐｐ．４７−５１
Attorney, Agent or Firm:
Yoshio Kawaguchi