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.:

US 6614328 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 02, 2003

Filed:

Feb. 25, 2002
Applicant:
Inventors:

Mi-Hyun Son, Seoul, KR;

Seong-Soo Lee, Kyonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/20 ; H01P 1/205 ;
U.S. Cl.
CPC ...
H01P 1/20 ; H01P 1/205 ;
Abstract

Disclosed is a radio frequency filter of a combline structure including a frequency cut-off circuit for cutting off a specific frequency from a frequency band having a given frequency bandwidth. The frequency cut-off circuit includes an inductive transmission line extending from the output terminal by a length determined to provide an approximate inductance corresponding to a calculated value approximate to an inductance for obtaining the specific frequency, and a capacitive element coupled to the approximate inductance provided by the inductive transmission line, so that it has a capacitance for obtaining the specific frequency. The inductive transmission line is connected to the capacitive element through a via hole formed at an end of the transmission line opposite to the output terminal, from which the transmission line extends. The invention also proposes a method for implementing the radio frequency filter.


Find Patent Forward Citations

Son, Mi-Hyun. (2003). Radio frequency filter of combline structure having frequency cut-off circuit and method for implementing the same (U.S. Patent No. 6614328). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6614328

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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