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A broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance

A multi-mode resonance, patch antenna technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of multiple units, complex design, narrow bandwidth, etc., and achieve stable profile and gain pattern distribution. , The effect of stable working performance

Active Publication Date: 2021-10-26
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, the existing problems of multi-beam antennas are: narrow bandwidth, high profile, multi-unit, complex design and other defects, which hinder the practical application of the antenna

Method used

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  • A broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance
  • A broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance
  • A broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance

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Embodiment 1

[0031] see figure 1 as well as figure 2 , a broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance, including a rectangular radiation patch 1, a dielectric layer 2 and a ground plate 3 stacked in sequence; it also includes feeding the rectangular radiation patch 1 coaxial probe 4; between the rectangular radiation patch 1 and the ground plate 3 are respectively loaded with TM 1 / 2,1Mode realizes the first short-circuit component group 5 of single-beam radiation, is used to form and make TM 1 / 2,0 mode realizes the second short-circuit component group 6 of dual-beam radiation and is used to make the TM 3 / 2,1 mode achieves single-beam radiation and enables TM 3 / 2,0 Mode realizes the third short-circuit component group 7 of double-beam radiation; the first short-circuit component group 5 is located next to a short edge of the rectangular radiation patch 1; the second short-circuit component group 6 is provided with two groups, respectively l...

Embodiment 2

[0035] see figure 1 as well as figure 2 , a broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance, including a rectangular radiation patch 1, a dielectric layer 2 and a ground plate 3 stacked in sequence; it also includes feeding the rectangular radiation patch 1 coaxial probe 4; between the rectangular radiation patch 1 and the ground plate 3 are respectively loaded with TM 1 / 2,1 Mode realizes the first short-circuit component group 5 of single-beam radiation, is used to form and make TM 1 / 2,0 mode realizes the second short-circuit component group 6 of dual-beam radiation and is used to make the TM 3 / 2,1 mode achieves single-beam radiation and enables TM 3 / 2,0 Mode realizes the third short-circuit component group 7 of double-beam radiation; the first short-circuit component group 5 is located next to a short edge of the rectangular radiation patch 1; the second short-circuit component group 6 is provided with two groups, respectively ...

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Abstract

The present invention provides a broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance, which includes sequentially stacked rectangular radiation patches, dielectric layers and grounding plates; also includes coaxial probes; the rectangular radiation patch and The first short-circuit component group, the second short-circuit component group and the third short-circuit component group are respectively loaded between the grounding plates; the first short-circuit component group is located next to a short edge of the rectangular radiation patch; the second short-circuit component There are two sets of groups, which are respectively located on two corners next to the other short side of the rectangular radiation patch; the third short-circuit component group is located between the first short-circuit component group and the second short-circuit component group; The connection point between the coaxial probe and the rectangular radiation patch is located between the first short circuit component group and the third short circuit component group and deviates from the symmetry axis of the rectangular radiation patch. The patch antenna realizes the characteristics of low profile, dual-frequency multi-beam and bandwidth enhancement, relatively stable gain pattern distribution, and stable working performance.

Description

technical field [0001] The invention relates to the technical field of patch antennas, in particular to a broadband low-profile dual-frequency multi-beam patch antenna based on multi-mode resonance. Background technique [0002] Microstrip patch antennas have received extensive attention due to their small size, light weight, and wide signal coverage. In modern wireless communications, there is an increasing demand for antennas with single-beam and dual-beam patterns. At present, the methods of realizing multi-beam at home and abroad mainly include: adopting the form of array antenna in a single band, using reconfigurable technology, and loading a frequency selective surface in a dual band. When the form of array antenna is adopted, by selecting the input port of the feed network, the antenna can alternately form single beam and double beam, but in this design, the feed network introduced increases the complexity of antenna design and implementation, and must Consists of m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q25/04H01Q5/10H01Q5/28H01Q5/314H01Q5/321H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50H01Q25/04H01Q5/10H01Q5/28H01Q5/314H01Q5/321
Inventor 刘能武梁宇栋祝雷傅光
Owner XIDIAN UNIV