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Low-cost broadband millimeter wave array antenna

An array antenna, millimeter wave technology, applied in the direction of antenna, antenna coupling, antenna array, etc., to achieve the effect of wide impedance bandwidth, small size, and high power capacity

Pending Publication Date: 2021-02-19
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a low-cost broadband millimeter-wave array antenna to overcome the shortcomings of existing millimeter-wave PCB planar antennas and traditional horn antennas

Method used

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  • Low-cost broadband millimeter wave array antenna
  • Low-cost broadband millimeter wave array antenna
  • Low-cost broadband millimeter wave array antenna

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0031] Embodiment 1 of the present invention is a low-cost broadband millimeter-wave array antenna, which mainly includes two parts: a metal horn part and a cavity-backed patch antenna.

[0032] Such as figure 1 As shown, the metal horn part includes at least two metal horn antenna units 1 for transmitting and two metal horn antenna units 11 for receiving, forming an array distribution. The metallic horn antenna unit 1 for transmitting and the metallic horn antenna unit 11 for receiving are identical in structure, and are realized by milling on the same piece of metal.

[0033]The cavity-backed patch antenna includes an antenna feeding dielectric plate 10, on which there are provided a transmitting feed unit 2 corresponding to the number of transmitting metal horn antenna units 1, and a corresponding number of receiving ...

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Abstract

The invention discloses a low-cost broadband millimeter wave array antenna, and belongs to the technical field of antennas. The antenna comprises a metal horn part and a back cavity patch antenna, wherein the metal horn part comprises at least two metal horn antenna units for transmitting and two metal horn antenna units for receiving which are distributed in an array; and the back cavity patch antenna comprises an antenna feed dielectric plate, and transmitting feed units and receiving feed units which are arranged on the antenna feed dielectric plate correspond to the transmitting metal hornantenna units and the receiving metal horn antenna units in number respectively. The metal horn part is attached to the back cavity patch antenna through conductive adhesive, and each patch antenna radiation source is attached to the lower portion of the corresponding metal horn antenna unit. The antenna can be realized only through a mature, simple and low-cost machining process and a standard single-layer PCB process; and meanwhile, other properties such as return loss, bandwidth and radiation pattern keep excellent characteristics.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a low-cost broadband millimeter-wave array antenna. Background technique [0002] Array antennas are widely used in wireless systems such as communication and radar. The integrated design of the transceiver array antenna can effectively improve the compactness of the antenna array and even the entire system, reduce the volume of the system, reduce the difficulty of processing, and reduce assembly errors. However, when the operating frequency of the system reaches the millimeter wave frequency band, the design of the array antenna will encounter some new problems and challenges. [0003] In the millimeter wave frequency band, due to the interference of the surface wave of the printed circuit board, the coupling between the planar array antenna elements is relatively large, and the isolation performance is poor, resulting in distortion of the pattern. At the same tim...

Claims

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Application Information

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IPC IPC(8): H01Q13/02H01Q21/00H01Q21/06H01Q1/50H01Q1/52
CPCH01Q13/02H01Q21/064H01Q1/50H01Q21/0006H01Q1/523Y02D30/70
Inventor 成立吴福伟李元吉杨予昊李大圣孙俊
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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