UHF-frequency-band high-gain left-handed circularly polarized antenna

A left-handed circularly polarized, high-gain technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of narrow antenna coverage and low gain, etc., to improve the gain, improve the overall gain, increase the The effect of the reflection area

Pending Publication Date: 2021-04-09
无锡华信雷达工程有限责任公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a UHF frequency band high-gain left-handed circularly polarized antenna, which is used to solve the problems of narrow frequency band coverage and low gain of existing antennas, so as to meet the requirements of communication terminals for satellite communication

Method used

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  • UHF-frequency-band high-gain left-handed circularly polarized antenna
  • UHF-frequency-band high-gain left-handed circularly polarized antenna
  • UHF-frequency-band high-gain left-handed circularly polarized antenna

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Embodiment Construction

[0023] Such as Figure 1-2 As shown, the UHF frequency band high-gain left-handed circularly polarized antenna includes an antenna body, and the antenna body includes a first connecting seat 1, a UHF frequency band choke tube 2, a second connecting seat 3, a connecting rod 4 and The third connection seat 5, the bottom of the first connection seat 1 is provided with a UHF frequency band coaxial feeder connected to the UHF frequency band radiation oscillator arm; specifically, the connecting rod is made of PPS material; the first connection seat 1, the UHF frequency band choke tube 2. The second connecting seat 3 , the connecting rod 4 and the third connecting seat 5 are detachably connected by threads in turn, which is convenient for loading and unloading, and convenient for maintenance and repair.

[0024] The first connection base 1, the second connection base 3 and the third connection base 5 are respectively provided with a reflection ground 6, a UHF frequency band radiator...

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Abstract

The invention provides a UHF-frequency-band high-gain left-handed circularly polarized antenna. An antenna body comprises a first connecting seat, a UHF-frequency-band choke tube, a second connecting seat, a connecting rod and a third connecting seat which are sequentially arranged from bottom to top, and the first connecting seat, the second connecting seat and the third connecting seat are provided with a reflecting ground, a UHF-frequency-band radiator and a director; the director, the UHF-frequency-band radiator and the reflection ground comprise four cross oscillator arms, director oscillator arms, UHF-frequency-band radiator arms and reflection oscillator arms are movably connected with the third connecting seat, the second connecting seat and the first connecting seat; a UHF-frequency-band coaxial feeder connected with the UHF-frequency-band radiation oscillator arms is arranged at the bottom of the first connecting seat; and the gain of the antenna body is superior to 6dBi in a full frequency band, and the antenna body has an access networking function. The access networking comprises access to a tactical satellite UHF communication network and a tactical radio station Internet. And the antenna has a relatively strong anti-interference capability and can better meet the requirements of new-generation tactical communication.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a UHF frequency band high-gain left-handed circularly polarized antenna. Background technique [0002] According to the polarization characteristics, the antenna can be divided into three types: linear polarization, circular polarization and elliptical polarization. Circularly polarized antennas can receive linearly polarized waves in any polarization direction, and the signals it emits can also be received by linearly polarized antennas in any polarization direction, and have hand-to-hand orthogonality, especially in aerospace vehicles, wireless It is widely used in radio fields such as polarization diversity of communication and radar, and global positioning. With the development of wireless communication technology, the development of communication terminals tends to be miniaturized, multi-functional, multi-band, multi-polarized and multi-purpose, which brings mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50H01Q5/10H01Q5/28H01Q5/307H01Q15/14
CPCH01Q1/36H01Q1/48H01Q1/50H01Q15/145H01Q5/10H01Q5/28H01Q5/307
Inventor 张杰
Owner 无锡华信雷达工程有限责任公司
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