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:
Dec. 14, 2021

Filed:

Jan. 24, 2020
Applicant:

First Rf Corporation, Boulder, CO (US);

Inventors:

Joseph René Mruk, Boulder, CO (US);

Robert Patterson Scheeler, Boulder, CO (US);

Assignee:

FIRST RF Corporation, Boulder, CO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 5/19 (2006.01); H01Q 21/00 (2006.01); H01P 3/08 (2006.01); H01P 1/203 (2006.01);
U.S. Cl.
CPC ...
H01P 5/19 (2013.01); H01P 1/20336 (2013.01); H01P 3/081 (2013.01); H01Q 21/0006 (2013.01);
Abstract

A filtering power divider includes a first partial transmission line having a first electrical length, a second partial transmission line having a second electrical length, and a third partial transmission line having the second electrical length. The first, second, and third partial transmission lines connect to form a T-junction, and a sum of the first and second electrical lengths is ninety degrees. Thus, the first and second partial transmission lines cooperate to act as a quarter-wave transmission line. Similarly, the first and third partial transmission lines cooperate to act as a quarter-wave transmission line. Additional transmission lines may be connected to the first, second, and third partial transmission lines to implement a filter between an input port and each of two output ports.


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