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. 26, 1998

Filed:

Jan. 11, 1996
Applicant:
Inventors:

Tsukasa Yoneyama, Sendai, JP;

Youhei Ishikawa, Kyoto, JP;

Tohru Tanizaki, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ; H01P / ;
U.S. Cl.
CPC ...
343783 ; 343784 ; 343785 ; 343771 ; 333237 ; 333248 ; 333239 ;
Abstract

A leakage dielectric waveguide includes a housing made of plane-shaped electrical conductors located parallel to each other, and a dielectric strip for propagating a high-frequency wave between the parallel electrical conductors, wherein the dielectric strip is provided within the housing. The housing is arranged to be asymmetrical, thereby leaking and radiating a high-frequency wave propagating through the dielectric strip. The housing is preferably further composed of the plane-shaped parallel electrical conductors and a side wall. A plane antenna includes the above-mentioned leakage dielectric waveguide, and a projecting device for projecting the high-frequency wave toward a free space in response to a high-frequency wave being projected from the dielectric waveguide. Alternately, a plane antenna includes a plurality of the above-mentioned leakage dielectric waveguides, and a projecting device for projecting either one high-frequency wave or a plurality of high-frequency waves toward a free space in response to a plurality of high-frequency waves being projected from the plurality of dielectric waveguides.


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