The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2005
Filed:
Feb. 25, 2004
Applicants:
Masakazu Adachi, Osaka, JP;
Kazuhide Uriu, Osaka, JP;
Toshio Ishizaki, Hyogo, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q001/26 ;
U.S. Cl.
CPC ...
Abstract
To realize high pressure-tightness and improvement in a high-frequency characteristic due to a low impedance between a shunt FET and a ground of a FET switch circuit. An antenna switch module comprising a switch circuit for switching between transmitting and receiving of a signal between an antenna and a transmitting portion and/or a receiving portion and having a shunt circuit, wherein a capacitor of the shunt circuit of the switch circuit is provided to a dielectric layered body, and remaining elements of the switch circuit are provided to semiconductor chips mounted on the dielectric layered body.