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A broadband conformal circular polarized antenna

A circularly polarized antenna and broadband technology, applied in the fields of electromagnetic fields and microwaves, can solve problems such as the influence of conformal installation on the electrical characteristics of antenna arrays, achieve obvious weight reduction effects, reduce maintenance and replacement difficulties, and eliminate damage effects

Inactive Publication Date: 2019-04-05
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a broadband conformal circularly polarized antenna, which aims to solve the problem of conformal installation of the interferometer antenna unit under harsh installation conditions and the impact of conformal installation on the electrical characteristics of the antenna array. impact problem

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  • A broadband conformal circular polarized antenna
  • A broadband conformal circular polarized antenna

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Embodiment Construction

[0010] A broadband conformal circularly polarized antenna, such as figure 1 As shown, including: foam material 1, spiral surface 2, parallel double wire 3, ferrite absorbing material 4, honeycomb absorbing material 5, cavity balancer 6, radome 7, dielectric support 8, silicone sealing area 9, ring Oxygen glue 10, air pressure balance hole 11, antenna radiation cavity 12, etc., wherein:

[0011] 1. The foam material is a thin cylindrical part processed by PMI hard foam. Because the material has the characteristics of good strength and strong machinability, it can complete the protection and protection of the helix surface between the radome 7 and the helix surface 2. supporting role;

[0012] 2. The spiral surface is a sheet-shaped part processed by printing double-sided copper-clad laminates. Its upper surface is a metal spiral strip, which is fed through parallel double-wire 3 signals to complete the radiation of broadband circularly polarized waves; its lower surface Bonde...

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Abstract

The invention discloses a broadband conformal circular polarized antenna comprising a radome, a spiral surface, an antenna radiation cavity and a cavity balancer. Honeycomb absorbing materials are arranged in the antenna radiation cavity. A medium support is arranged between the spiral surface and the honeycomb absorbing materials. The upper surface of the spiral surface is a spiral metal strip, and a signal of parallel-wires is fed into the spiral surface to complete the radiation of broadband circular polarized waves; and circular ferrite absorbing materials are arranged above the spiral surface to cover the tail end area of the spiral line. Foam materials are arranged above the spiral surface, and the radome is arranged above the foam materials. The embedded type conformal design methodof the present invention lowers requirements for installing a broadband phase interferometer on a platform and eliminates damages to the antenna unit amplitude phase characteristics by the radome; acarrier platform provides an installation interface, and no installation rack is needed, so that the weight reduction of the phase interferometer antenna array is obvious; and embedded conformal installation reduces the difficulty of maintaining and replacing the antenna.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic fields and microwaves, and in particular relates to a broadband conformal circularly polarized antenna. Background technique [0002] The existing commonly used interferometer antenna arrays mostly use ordinary absorbing planar helical antennas with good circular polarization characteristics. The antenna array composed of planar helical antenna units is embedded in the absorbing material as a whole and then installed on the carrier platform, which will make the carrier The opening space of the platform is larger. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a broadband conformal circularly polarized antenna, which aims to solve the problem of conformal installation of the interferometer antenna unit under harsh installation conditions and the impact of conformal installation on the electrical cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q1/42H01Q17/00
CPCH01Q1/36H01Q1/42H01Q1/50H01Q17/008
Inventor 于伟谭继勇张义萍何清明李智
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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