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Broadband circularly polarized antenna array

A circularly polarized antenna and array technology, applied in the antenna field, can solve problems such as low broadband performance and narrow bandwidth, and achieve the effects of reducing signal reflection, increasing bandwidth, and improving impedance matching

Active Publication Date: 2020-12-04
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the circularly polarized antenna arrays currently available for millimeter waves have narrow bandwidths and low broadband performance, which needs to be improved.

Method used

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  • Broadband circularly polarized antenna array
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  • Broadband circularly polarized antenna array

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] In order to be able to process millimeter wave resources with a wider range of transmission spectrum, an embodiment of the present invention provides a broadband circularly polarized antenna array, such as figure 1 and figure 2 As shown, the antenna array includes: feed network unit 1, antenna unit 2 and microstrip line feed port 3;

[0038] The feed network unit 1 includes a feed network layer 11, and the feed network layer 11 includes a plurality of...

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Abstract

The embodiment of the invention provides a broadband circularly polarized antenna array, and relates to the technical field of antennas. The broadband circularly polarized antenna array comprises a feed network unit, an antenna unit and a microstrip line feed port, and the microstrip line feed port is coupled with the feed network unit through a microstrip line. The feed network unit comprises a feed network layer, and the feed network layer comprises a plurality of microstrip line power dividers connected by gradient microstrip lines. The microstrip line feed port is used for receiving a to-be-sent signal and feeding the to-be-sent signal into the feed network layer; the feed network layer is used for receiving the to-be-sent signal fed by the microstrip line feed port and sending the to-be-sent signal to the antenna unit; and the antenna unit is used for receiving the to-be-sent signal sent by the feed network layer and sending the to-be-sent signal in the form of circularly polarized millimeter waves, so that the broadband transmission characteristic of the circularly polarized antenna can be supported, and the bandwidth of the broadband circularly polarized antenna array is improved.

Description

technical field [0001] The present application relates to the technical field of antennas, in particular to a broadband circularly polarized antenna array. Background technique [0002] Antennas play an extremely important role in radio communication systems, and are responsible for transforming the guided waves transmitted on the transmission line into electromagnetic waves that can be transmitted in free space. Systems that use electromagnetic waves to transmit information rely on antennas to work. The performance of the antenna will directly affect the performance of the entire mobile communication system. Therefore, with the rapid development of mobile data transmission technology, the requirements for broadband antennas are also getting higher and higher. . [0003] At this stage, the research and development and industrialization of millimeter wave communication have entered a rapid development track. Compared with the low- and mid-band spectrum (Sub-6GHz), the millim...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q1/38H01Q1/50H01Q23/00
CPCH01Q1/38H01Q1/50H01Q21/00H01Q23/00
Inventor 陈智娇田洁亓丽梅姚远俞俊生
Owner BEIJING UNIV OF POSTS & TELECOMM
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