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:
May. 19, 1998
Filed:
Jul. 28, 1997
Shin Abe, Mukoh, JP;
Toru Kurisu, Kyoto, JP;
Abstract
It is desirable to broaden a frequency adjusting range of a resonator, or an adjusting range of a coupling coefficient between two resonators, even in a downsized TM mode dielectric resonator by enhancing a ratio of frequency change relative to an amount of movement of a frequency adjusting dielectric rod, a frequency adjusting hole is formed in a direction orthogonal to a direction of an electric field which exists in a dielectric pillar at resonance, and a void is extended from the frequency adjusting hole in a direction that is orthogonal both to the electric field and also to the frequency adjusting hole. Thus the frequency adjusting range or the adjusting range of the coupling coefficient can be broadened even in a downsized TM mode dielectric resonator, even when the dielectric rod has a limited range of movement, without substantially enlarging the frequency adjusting dielectric rod.