TM010 MODE DIELECTRIC RESONATOR, RESONATOR ELEMENT, AND DIELECTRIC FILTER

WIPO Patent Application WO/2014/024349

A1

A problem addressed by the present invention is to provide a miniature TM010 mode dielectric resonator whereby Qu values are high and sufficient filter characteristics are exhibited, as well as a resonator element mounted in this TM010 mode dielectric resonator which has high Q∙f values, and a miniature dielectric filter whereby sufficient filter characteristics are exhibited. This dielectric filter includes at least one TM010 mode dielectric resonator (1), said TM010 mode dielectric filter (1) comprising a resonator element (11), and a metallic casing (12) which houses the resonator element (11) in close contact with at least one end face of the resonator element (11), the resonator element (11) further comprising: a pillar-shaped dielectric member (14); one or more tube-shaped dielectric members (15) which are positioned concentrically about the circumference region of the pillar-shaped dielectric member (14), and which have a smaller dielectric constant than the pillar-shaped dielectric member (14); and electrodes (16, 17) which are installed at both end faces of the pillar-shaped dielectric member (14) and the tube-shaped dielectric members (15).

JPS58155110	[Title of the device] Microwave resonant circuit
WO/2017/185237	DIELECTRIC RESONATOR, AND DIELECTRIC FILTER, TRANSCEIVER AND BASE STATION APPLYING SAME

KASASHIMA TAKASHI (JP)
OHBAYASHI KAZUSHIGE (JP)

PCT/JP2013/002499

February 13, 2014

April 11, 2013

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NGK SPARK PLUG CO (JP)

H01P7/10; H01P1/20

JP2000101314A	2000-04-07
JP2002158514A	2002-05-31
JP2002518917A	2002-06-25

FUKUMURA, NAOKI (JP)
Naoki Fukumura (JP)

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