Title:
FILTER, BRANCHING FILTER, WIRELESS COMMUNICATION MODULE, BASE STATION, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2016/013135
Kind Code:
A1
Abstract:
The objective of the invention is to provide a profile-reduced or size-reduced filter. A filter comprises: a metallic casing; an opening that is formed in the metallic casing; a metallic cover that covers the opening; and transverse magnetic (TM) mode dielectric resonators that are disposed in the opening and that are in electrical contact with the bottom surface of the metallic casing and with the metallic cover, said filter being configured such that the heights of the TM mode dielectric resonators are lower than the lowest of the heights of one-quarter wavelength semi-coaxial resonators that could be disposed in the opening.
Inventors:
YOSHIDA MANABU (JP)
Application Number:
PCT/JP2015/001582
Publication Date:
January 28, 2016
Filing Date:
March 20, 2015
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01P1/213; H01P1/20; H01P7/10
Foreign References:
| JPS57106201A | 1982-07-02 | |||
| JP2002158514A | 2002-05-31 | |||
| JP2002084102A | 2002-03-22 | |||
| JPS60192502U | 1985-12-20 | |||
| JP2011029996A | 2011-02-10 | |||
| JPS63232602A | 1988-09-28 |
Other References:
Y.KOBAYASHI ET AL.: "Bandpass Filters Using TM010 Dielectric Rod Resonators", MICROWAVE SYMPOSIUM DIGEST, 1978 IEEE -MTT-S INTERNATIONAL, 1978, pages 233 - 235, XP031666330
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
Naoki Shimosaka (JP)
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