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Broadband circularly polarized microstrip antenna array

A technology of microstrip antenna and circular polarization, which is applied to antenna unit combinations, antennas, electrical components and other directions with different polarization directions, can solve the problems of narrow working bandwidth of microstrip antenna and limit the application of broadband wireless communication, and achieve broadened Application market, working frequency bandwidth and axial ratio bandwidth improvement, and the effect of working bandwidth improvement

Pending Publication Date: 2016-11-30
上海捷士太通讯技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, with the advent of the era of high-speed data communication, broadband wireless communication has developed rapidly. Broadband wireless communication requires a relatively wide operating bandwidth, but the shortcoming of the narrow operating bandwidth of the microstrip antenna limits its application in the rapidly developing field of broadband wireless communication.

Method used

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  • Broadband circularly polarized microstrip antenna array

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specific Embodiment approach

[0030] Figure 1-Figure 2 Show the specific implementation of the broadband circularly polarized microstrip antenna array of the present invention: a broadband circularly polarized microstrip antenna, including a plurality of antenna units, main feeding unit 201, feeding unit 1 202, feeding unit 2 203, The feed unit 3204, the dielectric substrate 21, and the formation II 22 are composed of the antenna unit 1191, the antenna unit 2 192, the antenna unit 3 193 and the antenna unit 4 194, which are identical and have the same spacing between them. The adjacent antenna units Rotate 90 degrees sequentially in the direction, the feed signal amplitude of the antenna unit is equal, and the phase difference is 0 degree, -90 degree, -180 degree and -270 degree in turn, and the feeder of the branch circuit is connected to the main feed unit 201 Unit 1 202, feeding unit 2 203, and feeding unit 3 204, the feeding unit 1 202, feeding unit 2 203, and feeding unit 3 204 are sequentially conne...

Embodiment 2

[0035] Figure 3-Figure 4Show the specific implementation of the antenna unit in the wideband circularly polarized microstrip antenna array of the present invention: a wideband circularly polarized microstrip antenna, including a first radiation unit 1, a second radiation unit 2, a first H-shaped slot 301, The second H-shaped slot 302, the first feed unit 401, the second feed unit 402, the 90° broadband phase shifter 11, the load 12, the ground via hole 14, the pad 15, the first dielectric base layer 5, the second A dielectric base layer 6 , a third dielectric substrate 7 , an air dielectric layer 9 , a formation 10 and a pad 8 . The first radiation unit 1 is attached to the upper surface of the first dielectric substrate 5, the second radiation unit 2 is attached to the upper surface of the second substrate 6, and the space between the first dielectric substrate 5 and the second dielectric substrate 6 is air The dielectric layer 9 is supported by the gasket 8. The ground la...

Embodiment 3

[0050] Figure 5 produced Figure 3-Figure 4 The embodiment of the antenna unit in the broadband circularly polarized microstrip antenna array of the present invention is shown: the antenna unit adopts a narrowband circularly polarized microstrip antenna unit. The antenna units include antenna unit 1 191, antenna unit 2 192, antenna unit 3 193 and antenna unit 4 194 which are identical and have the same distance between them. The amplitudes of the electrical signals are equal, and the phases are sequentially different from 0 degree, -90 degree, -180 degree and -270 degree. Unit 3 204, the feeding unit 1 202, feeding unit 2 203, and feeding unit 3 204 are sequentially connected to antenna unit 1 191, antenna unit 2 192 and antenna unit 3 193, and the main feeding unit 201 is connected to Antenna unit 4 194. The main feeding unit 201, feeding unit 1 202, feeding unit 2 203, and feeding unit 3 204, the signal input from the main feeding unit 201 is divided into four channels w...

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Abstract

The invention discloses a broadband circularly polarized microstrip antenna array and relates to the technical field of antennae. The broadband circularly polarized microstrip antenna array comprises a plurality of antenna units, a main feed unit, a feed unit 1, a feed unit 2, a feed unit 3, a dielectric substrate and a stratum II, wherein the antenna units include an antenna unit 1, an antenna unit 2, an antenna 3 and an antenna unit 4 which are all the same and are same in interval; the adjacent antenna units are rotated for 90 degrees in sequence in direction; feed signal amplitudes of the antenna units are the same, and phase differences of the antenna units are 0 degree, -90 degrees, -180 degrees and -270 degrees in sequence; the main feed unit is connected with the feed unit 1, the feed unit 2 and the feed unit 3 of branches; the feed unit 1, the feed unit 2 and the feed unit 3 are connected with the antenna unit 1, the antenna unit 2 and the antenna unit 3 in sequence; and the main feed unit is connected with the antenna unit 4.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband circularly polarized microstrip antenna array. Background technique [0002] In recent years, with the rapid development of mobile communication, wireless mobile communication has also been widely used. The antenna is an important part of the wireless mobile communication system, responsible for sending and receiving wireless signals. Among many types of antennas, microstrip antennas are favored by the market and widely used due to their small size, light weight, planar structure, easy integration with IC devices, easy batch processing, and low cost. However, the shortcoming of the narrow working bandwidth (<5%) of the microstrip antenna also greatly limits the application of the microstrip antenna. Circularly polarized antennas are widely used in radar, military, satellite communication and mobile communication systems. Compared with linearly polarized waves, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/08H01Q1/38H01Q21/24
CPCH01Q1/38H01Q13/085H01Q21/24
Inventor 鲁勇
Owner 上海捷士太通讯技术有限公司
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