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:
Jan. 07, 1992
Filed:
Jan. 29, 1990
Yuji Ishida, Nishinomiya, JP;
Michio Taniguchi, Kobe, JP;
Daihen Corporation, Osaka-fu, JP;
Abstract
There are disclosed an automatic microwave impedance adjusting apparatus for a microwave load connected to a microwave oscillator through a microwave transmission line, and an automatic microwave impedance adjusting method therefor. In the apparatus and method, there is measured either an impedance seen looking toward a microwave load at a predetermined reference point of a microwave transmission line connected between a microwave oscillator and the microwave load or a reflection coefficient thereat by detecting a voltage standing wave of a microwave propagating on the microwave transmission line. Thereafter, a controller controls variable impedance means mounted on the microwave load side of the reference point on the microwave transmission line responsive to the value measured at the first step, so as to adjust the impedance seen looking toward the microwave load to a predteremined value.