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Compact system with multiple beam antennas

一种多波束天线、单极子天线的技术，应用在天线、天线阵列、单独通电的天线阵列等方向

Inactive Publication Date: 2016-01-20
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, so far, the applications of the Van-Atta network have only been satellite or radar type applications

Method used

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  • Compact system with multiple beam antennas
  • Compact system with multiple beam antennas
  • Compact system with multiple beam antennas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] first refer to figure 2 and image 3 A description is given of a first embodiment of a compact multi-beam antenna system according to the present invention.

[0029] On a large-sized substrate 10 equipped with a ground plane, an antenna system has thus been generated comprising two monopole networks of the VanAtta type and several sources positioned symmetrically around the networks. As will be explained in more detail below, the monopole is located in a field close to the source. exist figure 2 In an embodiment of the present invention, the substrate 10 is a square substrate with a ground plane having dimensions of 250×250 mm. It is preferably produced using a multilayer standard substrate of the FR4 type (εr=4.4 and tan(delta)=0.02). The substrate has a thickness of 1.4mm. Such as figure 2 As shown in , two reverse-type networks have been produced on the substrate 10, each consisting of four 1 / 4 wavelength monopoles (quarterwave monopoles) separated by a dist...

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PUM

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Abstract

The present invention relates to a multi-beam antenna system comprising P networks (11, 12) of M radiation sources and N radiation elements (11a, 11b, 11c, 11d, 12a, 12b, 12c, 12d), where P is greater than 1 and N is an even number, the network elements are connected two by two via transmission lines (11', 11", 12', 12") of the same electrical length. In addition, P networks are co-located at the center (O) of each network, and M radiation sources (S1, S2, S3, S4) are each located at a distance Li from the center that is strictly smaller than The distance of the field in the far field and i varies from 1 to M. The system can be used in MIMO type devices.

Description

technical field [0001] The present invention relates to a compact multi-beam antenna system, and more particularly to a multi-beam antenna system that can be used in a wireless communication environment, more particularly in which propagation conditions of electromagnetic waves due to multiple paths are very Unfavorable wireless home network. Background technique [0002] The use of directional antennas as antennas capable of focusing radiated power in a specific direction in space is proving especially attractive for emerging applications such as wireless home networks, smart networks or similar types of networks. However, the laws of physics impose a minimum size on the antenna, which is more important because the antenna is more directional or because its operating frequency is low. [0003] To date, the use of directional antennas has been limited to applications operating at very high frequencies, typically with a fixed beam, and without size constraints such as those ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q1/36
CPCH01Q3/2647H01Q19/32H01Q21/28H01Q25/002H01Q21/06
Inventor J-F.平托斯P.米纳德A.洛齐尔D.洛西恩童
Owner THOMSON LICENSING SA