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Antenna module

An antenna module and antenna technology, applied in antennas, antenna arrays, electrical short antennas, etc., can solve problems such as spacing deviation

Pending Publication Date: 2020-12-08
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the spacing of radiation elements is optimized in one frequency band, the spacing of radiation elements in other frequency bands may deviate from the appropriate range.

Method used

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Examples

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Effect test

no. 1 example

[0032] refer to Figure 1A to Figure 6B The accompanying drawings illustrate the antenna module of the first embodiment.

[0033] Figure 1A is a schematic diagram of the antenna module of the first embodiment. The antenna module of the first embodiment has a plurality of multiband antenna elements 20 and an antenna driving unit 50 . Each of the plurality of multiband antenna elements 20 can operate at a plurality of frequencies. A plurality of multi-band antenna elements 20 are arranged in, for example, a two-dimensional matrix of 4 rows and 4 columns to form an array antenna 21 . In addition, the number of rows and columns is not limited to four. The pitch Px in the row direction of the multiband antenna elements 20 is equal to the pitch Py in the column direction. At this time, the distance in the 45° inclined direction is ((2 1 / 2 ) / 2) Px. Here, the "distance in the oblique direction" does not refer to the distance between two adjacent multiband antenna elements 20 in...

no. 2 example

[0063] Next, refer to Figure 9A , Figure 9B ,as well as Figure 9C , the antenna module of the second embodiment will be described. Hereinafter, the description of the common configuration with the antenna module of the first embodiment will be omitted.

[0064] Figure 9A It is a plan view of a multi-band antenna element 20 used in the antenna module of the second embodiment. In the first embodiment, the multiband antenna element 20 is composed of a first conductor pattern 201 and a second conductor pattern 202 ( Figure 1B )constitute. The multiband antenna element 20 of the second embodiment is composed of a plurality of conductor patterns 203, 204, and 205 of different sizes arranged on the same plane.

[0065] The multiband antenna elements 20 of the second embodiment are each provided with the smallest pair of conductor patterns 203 on the innermost side, for example. On the outside of the pair of conductive patterns 203, a pair of larger conductive patterns 204...

no. 3 example

[0071] Next, refer to Figure 10A to Figure 10E The accompanying drawings illustrate the antenna module of the third embodiment. Hereinafter, the description of the common configuration with the antenna module of the first embodiment will be omitted.

[0072] Figure 10A is a top view of a plurality of multi-band antenna elements 20 of the antenna module of the third embodiment. In the first embodiment, 16 multi-band antenna elements 20 ( Figure 1A ) are arranged in a matrix of 4 rows and 4 columns. In the third embodiment, 36 multiband antenna elements 20 are arranged in a matrix of 6 rows and 6 columns. Let P represent the pitch in the row direction and the column direction.

[0073] Figure 10B to Figure 10E The drawings shown in FIG. 1 and 2 are diagrams showing examples of combinations of multiband antenna elements 20 in operation. In any of the drawings, the active multiband antenna element 20 is hatched. The multi-band antenna element 20 that is not hatched is i...

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Abstract

In the present invention, an array antenna is configured with multiple multiband antenna elements capable of operating at multiple frequencies. An antenna drive unit, upon selecting some multiband antenna elements from among multiple multiband antenna elements in accordance with one operating frequency selected from among multiple operating frequencies, activates the selected multiband antenna elements.

Description

technical field [0001] The present invention relates to antenna modules. Background technique [0002] Patent Document 1 below discloses an array antenna system capable of rapidly forming a beam pattern matching the communication direction of a radio signal. This array antenna system includes a plurality of antenna elements arranged at predetermined intervals in a row direction and a column direction, and a control unit that directs the plurality of antenna elements along the direction of a received radio signal. At least two of the antenna elements selectively operate. [0003] Patent Document 2 below discloses a microstrip antenna in which a plurality of antenna elements (patches) are laminated and a coaxial feeder is provided on each antenna element. This microstrip antenna can handle two frequencies or a plurality of frequencies through multi-layered antenna elements. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2008-167401 [0005] Patent Document 2: Ja...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/30H01Q5/307H01Q5/378H01Q13/08H01Q21/06H01Q21/28
CPCH01Q21/065H01Q21/0006H01Q9/0414H01Q5/42H01Q1/28H01Q5/307H01Q5/378H01Q13/08H01Q21/28
Inventor 上田英树须藤薰尾仲健吾森弘嗣村田崇基
Owner MURATA MFG CO LTD
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