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.

Date of Patent:
Oct. 20, 2020

Filed:

Nov. 08, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Takeshi Yuasa, Tokyo, JP;

Takeshi Oshima, Tokyo, JP;

Hiroyuki Aoyama, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); H01P 1/203 (2006.01); H03H 7/01 (2006.01); H03H 7/38 (2006.01); H03H 7/46 (2006.01); H03H 9/64 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0233 (2013.01); H01P 1/2039 (2013.01); H03H 7/01 (2013.01); H03H 7/38 (2013.01); H03H 7/46 (2013.01); H03H 9/6406 (2013.01); H03H 9/72 (2013.01); H05K 1/025 (2013.01); H05K 1/0243 (2013.01); H05K 2201/09227 (2013.01);
Abstract

The multiband filter includes a printed circuit board, a first filter, a second filter having an outer dimension different from that of the first filter and passband frequencies higher than those of the first filter, an input terminal, an output terminal, a first inductor, a first capacitor, which are connected except the first capacitor by signal line conductor patterns to form a first transmission line, which connect the second filter, the input terminal, the output terminal, and the first capacitor to form a second transmission line, a part thereof in the first transmission line being arranged in an area on the printed circuit board, formed by the difference between the outer dimensions of the first and the second filters, to achieve desirable passbands and enough attenuation in a suppression band outside the passbands.


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