Circular polarization electromagnetic dipole array antenna

An electromagnetic dipole and array antenna technology, applied to linear waveguide feed arrays, antenna arrays with separate power supply, antennas, etc., can solve the problems of unsuitable excitation antennas, small converter impedance, narrow bandwidth, etc., and achieve overall The effects of structure miniaturization, feed capacity improvement, and axial ratio bandwidth expansion

Active Publication Date: 2019-08-30
东莞市南斗星科技有限公司
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Problems solved by technology

The common substrate-integrated waveguide-to-coaxial rotator uses a basic integrated waveguide with a small impedance. Although it can be made into a converter with a wider bandwidth, the size is huge
In addition, d

Method used

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  • Circular polarization electromagnetic dipole array antenna
  • Circular polarization electromagnetic dipole array antenna
  • Circular polarization electromagnetic dipole array antenna

Examples

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Embodiment

[0038] Such as Figure 1-9 As shown, a circularly polarized electromagnetic dipole array antenna, in order to deal with air absorption, uses a 4 by 4 16-element antenna array to obtain a gain higher than that of a single antenna, specifically including 4 sub-arrays arranged on a dielectric plate And the sequence phase feeding network, each sub-array all comprises 4 antenna units, and the whole array antenna comprises 16 antenna units; each sub-array is fed by a one-to-four power divider 6; in each sub-array, the one The power splitter 6 is composed of five substrate-integrated waveguide-to-coaxial converters. One of the substrate-integrated waveguides is used as an input, and the energy output from the coaxial line is distributed to the remaining four substrate-integrated waveguides through the converter. It passes through the converter to the coaxial line, and finally supplies power to the four antenna elements of each sub-array.

[0039] Such as Figure 6 The main structur...

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Abstract

The invention provides a circular polarization electromagnetic dipole array antenna, which comprises four sub-arrays arranged on a dielectric plate and a sequence phase feed network, wherein each sub-array includes four antenna units, and the whole array antenna includes 16 antenna units; each sub-array is fed by a one-to-four power divider; in each sub-array, the one-to-four power divider is composed of a five integrated waveguide-to-coaxial line converter, one of the substrate integrated waveguides serves as the input, and energy is outputted by a coaxial line through the converter and allocated to the remaining four substrate integrated waveguides, is then transmitted to the coaxial line through the converter and finally supplies power to the four antenna units of the sub-array. The circular polarization electromagnetic dipole array antenna is simple in feed structure, uses the substrate integrated waveguide with high impedance as the input, simplifies the design of the sequence phase feed network and realizes the miniaturization of the overall structure.

Description

[0001] [technical field] [0002] The invention relates to the technical field of antennas, in particular to a circularly polarized electromagnetic dipole array antenna. [0003] [Background technique] [0004] With the further development of wireless communication technology, low-frequency bands are increasingly unable to meet the growing demand for bandwidth. Circularly polarized antenna communication systems have better communication quality than linear polarization, and there is no problem caused by polarization mismatch. Communication failure, because millimeter waves are not good at diffraction, circularly polarized millimeter wave antennas have positive significance for improving the capabilities of communication systems. Millimeter-wave microstrip lines generally use substrates with a thickness of 0.127mm or 0.254mm. The types of antennas that can use these two substrates are relatively limited, so the feed network design of millimeter-wave antennas is usually based on ...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q21/06H01Q1/50
CPCH01Q1/50H01Q21/0037H01Q21/0068H01Q21/062
Inventor 冯波涛赖杰鑫
Owner 东莞市南斗星科技有限公司
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