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:
Jan. 24, 2006

Filed:

Apr. 08, 2003
Applicants:

Dong-ha Shim, Seoul, KR;

In-sang Song, Seoul, KR;

Young-il Kim, Ansan, JP;

Sun-hee Park, Yongin, KR;

Young-tack Hong, Suwon, KR;

Dong-ki Min, Suwon, KR;

Inventors:

Dong-ha Shim, Seoul, KR;

In-sang Song, Seoul, KR;

Young-il Kim, Ansan, JP;

Sun-hee Park, Yongin, KR;

Young-tack Hong, Suwon, KR;

Dong-ki Min, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 29/24 (2006.01); G01R 27/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An RF power sensor for measuring power for an RF signal using capacitance includes a substrate preferably formed of a semiconductor, such as silicon or of a dielectric substance, a fixture part fixed to the substrate and forming a signal line and ground lines that transmit RF signals, and a bridge connected to the ground lines and floating over the signal line, wherein the bridge is driven by an external driving force, and the external driving force induces capacitance between the bridge and the signal line. Accordingly, power for an RF signal can be measured through the capacitance between the signal line and the bridge. The RF power sensor facilitates matchings, reduces insertion loss, and can be used in a wide bandwidth because it is based on transmission lines having characteristic impedance. Further, high power can be measured depending upon bridge designs.


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