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Horizontal radiation antenna

A radiation antenna, horizontal direction technology, applied in the direction of antenna, resonant antenna, antenna grounding device, etc., can solve the problems of hindering electromagnetic wave transmission, power leakage, etc., and achieve the effect of easy connection and improved radiation characteristics

Active Publication Date: 2012-09-19
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no structure to prevent the transmission of electromagnetic waves inside the dielectric substrate
Therefore, an electromagnetic wave in a parallel plate mode is formed between the ground electrode on the surface side and the ground electrode on the back side, and the electromagnetic wave propagates inside the dielectric substrate, causing a problem of power leakage.

Method used

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  • Horizontal radiation antenna
  • Horizontal radiation antenna

Examples

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Embodiment Construction

[0052] Hereinafter, as a horizontal radiation antenna according to an embodiment of the present invention, an antenna used in a 60 GHz frequency band will be described in detail with reference to the drawings.

[0053] Figure 1 ~ Figure 4 The horizontal direction radiation antenna 1 of the first embodiment is shown. The horizontal radiation antenna 1 is composed of a substrate 2 , a back side ground conductor plate 3 , a radiation element 4 , a parasitic element 7 , a front side ground conductor plate 8 and the like which will be described later.

[0054] The substrate 2 is formed in a flat plate shape extending parallel to, for example, the X-axis direction and the Y-axis direction among mutually orthogonal X-axis directions, Y-axis directions, and Z-axis directions. The substrate 2 has, for example, a width dimension of about several mm with respect to the Y-axis direction serving as the width direction, has a length dimension of, for example, about several mm with respect...

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Abstract

This disclosure provides a horizontal radiation antenna. The antenna includes a back-surface-side grounded conductor plate(3) on a back surface (2B)of a substrate(2), a radiation element(4) to which a coplanar line(5) is connected on the front surface of the substrate, and a passive element(7) closer to an end portion side of the substrate than the radiation element(4). A front-surface-side grounded conductor plate(8) is provided at a substantially same height as the radiation element with respect to a thickness direction of the substrate. A notch part (8A) is disposed on a end portion (2C) of the front-surface-side grounded conductor plate(8). And the radiation element(4) as well as the character-shaped frame part (9) of the passive element(7) is disposed on the periphery of the notch part (8A). The character-shaped frame part (9) is electrically connected to the back-surface-side grounded conductor plate(3) by a plurality of through holes (10), and can be used to form the conductive wall (11) by the through holes (10).

Description

technical field [0001] The present invention relates to a horizontal direction radiation antenna suitable for high-frequency signals such as microwaves and millimeter waves. Background technique [0002] As a conventional horizontal radiation antenna, Non-Patent Document 1 describes a structure in which a feeder line, an unbalanced-balun electrode (hereinafter referred to as a balun electrode) are formed on the surface of a dielectric substrate, Radiating elements, passive elements, etc., and a ground conductor plate is formed on the back of the dielectric substrate. [0003] Also, Patent Document 1 describes a structure in which a microstrip line for power feeding and a conductor cover are provided on the surface of a dielectric substrate, and a ground conductor plate is provided on the back surface of the dielectric substrate. In this case, the tip of the microstrip line is located at the end of the dielectric substrate and is electrically connected to the ground conducto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q15/14
CPCH01Q19/28H01Q21/06H01Q9/0407H01Q1/48H01Q19/005
Inventor 须藤薰藤井洋隆小林英一平塚敏朗
Owner MURATA MFG CO LTD
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