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:
May. 27, 2008
Filed:
Jun. 04, 2004
Toshiyuki Wada, Kumagaya, JP;
Keisuke Fukamachi, Kumagaya, JP;
Kenji Hayashi, Kumagaya, JP;
Takashi Shiba, Yokosuka, JP;
Norio Hosaka, Kamakura, JP;
Makoto Katagishi, Chigasaki, JP;
Toshiyuki Wada, Kumagaya, JP;
Keisuke Fukamachi, Kumagaya, JP;
Kenji Hayashi, Kumagaya, JP;
Takashi Shiba, Yokosuka, JP;
Norio Hosaka, Kamakura, JP;
Makoto Katagishi, Chigasaki, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Hitachi Media Electronics Co., Ltd., Iwate, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A multi-band transceiver has a function of sharing transmitted and received signals of multiple frequency bands by the same antenna. The multi-band transceiver mounts multiple filters that correspond to the multiple frequency bands and multiple amplifiers for amplifying the transmitted signals on the same substrate, and arranges the multiple filters in close vicinity to the amplifier in the order where the multiple filters are excellent in their temperature characteristic.