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:
Aug. 29, 1995
Filed:
Jul. 26, 1994
Applicant:
Inventors:
Tatsuya Miya, Tokyo, JP;
Kazuyoshi Uemura, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 99 ; 3311 / ; 331115 ; 3311 / ; 3311 / ;
Abstract
In a microwave oscillation apparatus including a negative resistance element, a microstrip line having a first end connected to the negative resistance element and a second end connected to a terminating resistor, and a dielectric resonator magnetically coupled to the microstrip line, a capacitive stub is provided on the microstrip line at a distance (1/4) .lambda..sub.s (2N-1) from the first end thereof, where .lambda..sub.s is a wavelength of a spurious oscillation frequency component and N is a positive integer.