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Ultra-wideband gradual change seam circularly polarized microstrip antenna

A gradient slot, microstrip antenna technology, applied in the direction of antenna, antenna grounding switch structure connection, radiating element structure and other directions, can solve the problems of low profile, relative bandwidth only a few percent, narrow operating frequency band, etc., to achieve radiation Good directionality, good application prospect, simple feeding effect

Pending Publication Date: 2018-05-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Microstrip antennas have the advantages of low profile, light weight, easy conformality, and easy integration with active devices, but the traditional general-shaped microstrip antenna has an inherent disadvantage that the operating frequency band is too narrow, and its relative bandwidth is only about 100. fraction

Method used

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  • Ultra-wideband gradual change seam circularly polarized microstrip antenna
  • Ultra-wideband gradual change seam circularly polarized microstrip antenna
  • Ultra-wideband gradual change seam circularly polarized microstrip antenna

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0041] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0042] like figure 1 As shown, the present invention discloses an ultra-broadband gradient circularly polarized microstrip antenna, comprising a square dielectric substrate, a radiation metal layer arranged on the front of the square dielectric substrate, a feeding metal layer arranged on the back of the square dielectric substrate, a first to the second capacitor, and the first to the second inductance;

[0043] The radiation metal layer includes a square metal frame, first to fourt...

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Abstract

The invention discloses an ultra-wideband gradual change seam circularly polarized microstrip antenna which comprises a square dielectric substrate, a front radiation metal layer, a back feed metal layer and two pairs of passive element capacitors and inductors, wherein the front radiation metal layer comprises a square metal frame, first to fourth blade-shaped patches, and first to fourth long strip-shaped patches; the back feed metal layer is used as a feed unit to feed the upper-layer slot line and is provided with a metalized through hole to connect with the front radiation metal layer andthe back feed metal layer; and the two pairs of passive element capacitors and inductors are arranged in the center of the front radiation metal layer. According to the ultra-wideband gradual changeseam circularly polarized microstrip antenna in the invention, the circularly polarized radiation function of the S wave band is realized; and the antenna has the advantages of being small in size, simple in feed, ultra-wideband, good in radiation directionality, high in gain and the like and has a good application prospect.

Description

technical field [0001] The invention relates to the field of electronic communication, in particular to an ultra-wideband gradient circularly polarized microstrip antenna. Background technique [0002] Microstrip antennas have the advantages of low profile, light weight, easy conformality, and easy integration with active devices, but the traditional general-shaped microstrip antenna has an inherent disadvantage that the operating frequency band is too narrow, and its relative bandwidth is only about 100. fractions. [0003] UWB technology has become one of the most competitive hot technologies due to its high performance, high speed, low power consumption, low cost and other advantages. The UWB wireless communication system requires the UWB antenna not only to have a good impedance bandwidth, but also to have high efficiency, a fixed phase center, low profile, and easy feeding, etc., which puts forward very high requirements for the design of the UWB antenna. . Gradient ...

Claims

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Application Information

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IPC IPC(8): H01Q15/24H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50H01Q15/24Y02D30/70
Inventor 秦江弘刘少斌唐丹张斯
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS