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Large-bandwidth circularly polarized conical helical antenna

A helical antenna and circular polarization technology, which is applied in the directions of antenna support/installation device, antenna grounding switch structure connection, radiation element structure, etc., can solve wide-angle axial difference, cannot meet wide-angle circular polarization, absorption type The problem of low radiation efficiency of the planar helical antenna can achieve the effect of reducing the cross-sectional area, realizing broadband performance and high reliability, and improving the feeding method

Inactive Publication Date: 2017-06-23
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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Problems solved by technology

The radiation efficiency of the absorbing planar helical antenna is low, the gain at the low end of the frequency is usually less than 0 decibels, and the beam width is 70°-100°; although the circularly polarized horn antenna can achieve higher gain, the wide-angle axis is relatively poor, and the beam width It varies significantly with frequency, and cannot meet the requirements of broadband, high gain, wide beam, and wide-angle circular polarization in the field of electronic reconnaissance

Method used

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  • Large-bandwidth circularly polarized conical helical antenna
  • Large-bandwidth circularly polarized conical helical antenna

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Embodiment Construction

[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0023] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0024] Such as figure 1 , a wide bandwidth angle circularly polarized conical helical antenna, characterized in that it includes a housing 1 and a feed balancer, the housing 1 includes a conical helical section 4 and a column helical section 2, and the bottom surface of the conical helix section 4 corresponds to the connecting column helix Section 2, the diameter of the bottom surface of the conical helical section 4 is the same as the diameter of the column helical section 2; the top of the housing ...

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Abstract

The present invention discloses a large-bandwidth circularly polarized conical helical antenna. The large-bandwidth circularly polarized conical helical antenna comprises a shell and a feeding balancer; the shell comprises a conical helical section and a columnar helical section; the bottom surface of the conical helical section is correspondingly connected with the columnar helical section; the diameter of the bottom surface of the conical helical section is the same as the diameter of the columnar helical section; a through groove is formed at the top of the shell; the outer surface of the shell is provided with a helical line; the helical line is in 180-degree rotational symmetry; the feeding balancer includes a radio frequency coaxial connector, a balancer circuit and a microstrip printed line, wherein the microstrip printed line extends out from the through groove at the top of the shell; the microstrip printed line is provided with a printing circuit; and the printing circuit and the helical line are in lap welding so as to feed electricity. The antenna of the above structure is small in cross-sectional size, can form required directional beams and can achieve broadband, wide beam and wide-angle circular polarization performance.

Description

technical field [0001] The invention relates to a circularly polarized antenna, in particular to a wide bandwidth angle circularly polarized conical helical antenna. Background technique [0002] Circularly polarized antennas with a working bandwidth of three times the frequency can be in the form of planar helical antennas, circularly polarized horn antennas, and the like. The radiation efficiency of the absorbing planar helical antenna is low, the gain at the low end of the frequency is usually less than 0 decibels, and the beam width is 70°-100°; although the circularly polarized horn antenna can achieve higher gain, the wide-angle axis is relatively poor, and the beam width It varies significantly with frequency, and cannot meet the requirements of broadband, high gain, wide beam, and wide-angle circular polarization in the field of electronic reconnaissance. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/12
CPCH01Q1/38H01Q1/12H01Q1/50
Inventor 刘颖朱海冰叶君永何亚东黄迎春张义萍柏京
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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