A Mechanically Tunable Antenna with Low Profile Broadband and High Gain Pattern

A high-gain, directional-pattern technology, applied in the electronic field, can solve the problems of heavy servo structure, complex structure, and large volume, and achieve the effect of low profile, simple and compact structure, and high-gain radiation

Active Publication Date: 2021-09-24
NORTHWEST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing planar antenna based on the principle of phased array can realize high-gain beam scanning, but it is large in size, complex in structure and high in cost
Antennas based on mechanical servo structures can also achieve high-gain beam scanning, but the servo structures tend to be bulky and complex

Method used

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  • A Mechanically Tunable Antenna with Low Profile Broadband and High Gain Pattern
  • A Mechanically Tunable Antenna with Low Profile Broadband and High Gain Pattern
  • A Mechanically Tunable Antenna with Low Profile Broadband and High Gain Pattern

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the low-profile pattern reconfigurable antenna design of the embodiment of the present invention includes a first dielectric substrate 1 and a second dielectric substrate 2 . Periodically arranged periodic surface coatings 5 ​​are printed on the upper surface of the first dielectric substrate; the periodic surface coatings 5 ​​are square metal patch units arranged periodically in N×N, and each metal patch unit has the same size , both are a×a, and the distance between adjacent metal patch units is the same, both are p;

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Abstract

The invention discloses a mechanically adjustable antenna with a low-profile broadband and high-gain pattern. Periodic surface coatings are printed on the upper surface of the first dielectric substrate of the antenna, and metal contacts with rectangular excitation slits are printed and etched on the upper surface of the second dielectric substrate. floor. The second dielectric substrate and the first dielectric substrate are stacked up and down, and the rectangular microstrip feeder is printed on the lower surface of the second dielectric substrate, and the microstrip feeder couples and feeds the radiation patch of the antenna through the rectangular excitation slot. By mechanically moving the position of the dielectric substrate, the main beam pointing of the antenna radiation pattern can be changed. The invention can conveniently change the radiation pattern of the antenna through mechanical movement, solves the problems of fixed performance of the radiation pattern of the high-gain antenna and high profile of the mechanical scanning antenna with narrow bandwidth, and can be applied to wireless communication.

Description

technical field [0001] The invention belongs to the field of electronic technology. The invention relates to a design of a low profile broadband pattern adjustable antenna, specifically a design of a periodic surface coating pattern adjustable antenna based on mechanical movement, which can be applied to wireless communication system. Background technique [0002] High-gain directional antennas are widely used in the field of wireless communication. Compared with communication systems using low-gain omnidirectional antennas, communication systems using high-gain directional antennas have lower transmission power and stronger anti-interference capabilities. [0003] The existing planar antenna based on the principle of phased array can realize high-gain beam scanning, but it has large volume, complicated structure and high cost. Antennas based on mechanical servo structures can also achieve high-gain beam scanning, but the servo structures tend to be bulky and complex. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50
Inventor 李珂麻星王夫蔚任宇辉高宝建
Owner NORTHWEST UNIV
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