PATCH ANTENNA - NTT DOCOMO INC

Title:

PATCH ANTENNA

Document Type and Number:

Japanese Patent JP2002261540

Kind Code:

A

Abstract:

To improve the F/B ratio of a patch antenna and, in addition, to increase the gain of the antenna in the obliquely forward direction.

This patch antenna is constituted, in such a way that a planar feeding element 13 is arranged at the central part, and at the same time, planar nonfeed elements 16 and 17 are arranged on both sides of the element 13 on a base plate 11, and frame-like conductive sidewalls 12 are connected to the base plate 11 in a state where the sidewalls 12 surround the elements 13, 16, and 17. In addition, plate-shaped conductors 21a and 21b are provided to respectively face the outsides of the longer sides 12a and 12b of the sidewalls 12 and the base plate 11 is connected to the conductors 21a and 21b by extending the plate 11 in its widthwise direction.

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Inventors:

KANEMOTO TAKASHI
EBINE YOSHIO
ARAI HIROYUKI

Application Number:

JP2001061329A

Publication Date:

September 13, 2002

Filing Date:

March 06, 2001

Export Citation:

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Assignee:

NTT DOCOMO INC
ARAI HIROYUKI

International Classes:

H01Q21/08; H01Q1/48; H01Q1/52; H01Q13/08; (IPC1-7): H01Q13/08; H01Q1/48; H01Q1/52; H01Q21/08

Attorney, Agent or Firm:

Kusano Taku (1 person outside)

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