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:
Apr. 15, 2003
Filed:
Sep. 05, 2001
Junichi Noro, Akita, JP;
Akemi Kato, Akita, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
In an antenna unit ( ) comprising a circuit board ( ) having a principal surface ( ) and a back surface ( ) and an antenna element ( ) mounted on the principal surface of the circuit board, a helical antenna having an axial direction extending in substantially parallel with the principal surface is used ad the antenna element ( ). A shield cover ( ) is added to the circuit board at the back surface ( ) so as to cover circuit elements ( ) and shields the circuit elements arranged on the back surface of the circuit board. An output cable ( ) is connected to the circuit elements inside the shield cover and is pulled out of the shield cover. The circuit elements include a low-noise amplifier (LNA) circuit ( ).