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.

Date of Patent:
May. 14, 2002

Filed:

Dec. 29, 2000
Applicant:
Inventors:

Toshiro Hiratsuka, Kusatsu, JP;

Tomiya Sonoda, Muko, JP;

Kenichi Iio, Nagaokakyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 1/213 ; H01P 1/20 ;
U.S. Cl.
CPC ...
H01P 1/213 ; H01P 1/20 ;
Abstract

A dielectric filter, a transmission-reception shared unit, and a transceiver, which incorporate the filter, are disclosed; in which spurious modes such as HE110 mode, HE210 mode, HE310 mode, etc., can be suppressed so as to improve blocking-band attenuation characteristics. The dielectric filter comprises a dielectric plate; electrodes having electrodeless parts, which are formed on both main surfaces of the dielectric plate so as to form dielectric resonators; and probes disposed parallel to the line along which the dielectric resonators are aligned.


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