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:
Mar. 03, 2015
Filed:
Dec. 27, 2011
Applicants:
Takayuki Furuta, Yokohama, JP;
Atsushi Fukuda, Yokosuka, JP;
Hiroshi Okazaki, Zushi, JP;
Shoichi Narahashi, Yokohama, JP;
Inventors:
Takayuki Furuta, Yokohama, JP;
Atsushi Fukuda, Yokosuka, JP;
Hiroshi Okazaki, Zushi, JP;
Shoichi Narahashi, Yokohama, JP;
Assignee:
NTT DOCOMO, INC., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/38 (2006.01); H01P 1/203 (2006.01); H03H 7/46 (2006.01);
U.S. Cl.
CPC ...
H03H 7/38 (2013.01); H01P 1/2039 (2013.01); H03H 7/46 (2013.01); H03H 2007/386 (2013.01);
Abstract
A first line stub SBand one end of each of two switches SWand SWare connected to a transmission lineL at spacings L, Land Lin order from the input end of the transmission lineL, the other ends of the two switches are connected to a second line stub SB, the first and second line stubs have an open end or short-circuit end, and matching at any of four frequency bands can be selected by combining on and off of the two switches SWand SW