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Slot array antenna

An array antenna, slot technology, applied in slot antennas, antennas, antenna arrays and other directions, can solve problems such as trouble

Inactive Publication Date: 2009-05-27
OKI ELECTRIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the direction of the main beam of the antenna is not calibrated, then replacing this adjustment will be a lot of trouble

Method used

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  • Slot array antenna
  • Slot array antenna
  • Slot array antenna

Examples

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no. 2 example

[0102] Figure 20 is a cross-sectional view showing a slot array antenna 111 and a dielectric cover 156 according to a third embodiment of the present invention, which figure includes a cross-section of a radiation waveguide. Although in Figure 20 The outer plane P11 and the inner plane P12 of the medium cover 156 seem to be parallel, but in fact, as Figure 19 As shown, the inner plane P12 has a predetermined angle inclined to the outer plane P11 along the axial direction of each radiation waveguide. By the way, the method of determining the inclination angle is similar to that of the first and second embodiments, and therefore relevant information about it will be omitted. instruction of.

[0103] As described above, each of the first to third embodiments has such an inclination angle that the inclination angle of the main beam having radiation directivity can be suppressed by the dielectric cover. However, it should also be considered that the dielectric cover is prefabri...

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Abstract

A slot array antenna is composed of a slot array antenna main body (111) and a dielectric cover (116). The slot array antenna body (111) has a slotted plate (113). The slot array antenna body (111) is arranged such that the main beam (115) with radiation directivity extends in a direction inclined only by an inclination angle θ from the vertical direction of the plane P1 of the slotted plate (113). The dielectric cover (116) has an inclination angle α formed by the outer plane P3 and the inner plane P4, and is made of a dielectric material with a refractive index n. The inner plane P4 of the dielectric cover (116) is arranged to face the slotted plate (113) of the slot array antenna main body (111). Therefore, the main beam (115) with radiation directionality is emitted through the dielectric cover (116) and refracted by the dielectric cover (116), thereby modifying the tilt angle θ so that the main beam is perpendicular to the dielectric cover (116). It extends in the direction of the outer plane P3.

Description

technical field [0001] The invention relates to a slot array antenna composed of a plurality of element antennas and comprising a slotted plate with a plurality of slots. Background technique [0002] An array antenna is an antenna in which a plurality of element antennas are arranged in a predetermined pattern and has characteristics that are difficult to obtain with a single antenna. Controlling the phase of each element antenna constituting the array antenna can control the directivity of the entire array antenna. Therefore, the array antenna can be used as a beam scanning antenna without mechanically triggering the array antenna body. [0003] With the remarkable development of wireless communication technology, the frequency bands allocated for various communication devices have tended to be insufficient in recent years. In order to make up for this, the effective use of frequencies and the conversion to higher frequencies are required The development of the technolog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/06H01Q13/10H01Q3/00H01Q15/08H01Q1/42H01Q21/00
Inventor 巫·H.·霍尔
Owner OKI ELECTRIC IND CO LTD