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Ultra-wideband conical logarithm helical antenna

A technology of logarithmic helical and helical antennas, applied to antennas, antenna arrays, antenna grounding devices, etc., can solve the problems of high antenna input impedance, inconvenient SMA interface direct feeding, complex structure, etc., and achieve low cost and convenient direct feeding The effect of electricity and simple structure

Active Publication Date: 2021-01-29
杭州永谐科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing conical logarithmic helical antenna still has the problem of complex structure, and the input impedance of the antenna is high, which is not convenient for direct feeding of SMA interface

Method used

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  • Ultra-wideband conical logarithm helical antenna
  • Ultra-wideband conical logarithm helical antenna
  • Ultra-wideband conical logarithm helical antenna

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

[0025] refer to Figure 1 to Figure 7 As shown, an ultra-wideband conical logarithmic helical antenna in this embodiment includes a plastic housing 1, a first helical antenna 2 and a second helical antenna 3, the plastic housing 1 includes a first end face 11 and a second end face 12, The second end face 12 is fixed with a metal reflector 4, the reflective surface of the metal reflector 4 faces the first end face 11, the setting of the metal reflector...

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Abstract

The invention relates to the technical field of antennas, and discloses an ultra-wideband conical logarithm helical antenna. The antenna comprises a plastic shell, a first helical antenna and a secondhelical antenna, the plastic shell comprises a first end surface and a second end surface, a metal reflecting plate is fixed on the second end surface, and the reflecting surface of the metal reflecting plate faces the first end surface; and an SMA interface is fixedly connected to the metal reflecting plate, a cross section of the plastic shell is gradually reduced from the first end surface tothe second end surface, and the metal reflecting plate is arranged and can reflect radiation generated by the first helical antenna and the second helical antenna towards the second end surface so that the directional radiation characteristics of the first helical antenna and the second helical antenna are good. Through the arrangement of a dielectric plate, a microstrip line and a ground line, amicrostrip balun structure is formed in the plastic shell so that the input impedance of the first helical antenna and the second helical antenna is reduced, direct feeding of the SMA interface is facilitated, the structure is simple, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an ultra-wideband conical logarithmic helical antenna. Background technique [0002] The conical logarithmic helical antenna is a broadband, circularly polarized antenna that can obtain unidirectional radiation characteristics without a reflective cavity or reflective surface. Due to its characteristics of broadband, directional radiation and circular polarization, it can be used for military electronic countermeasures, communication measurement, etc.; [0003] However, the existing conical logarithmic helical antenna still has the problem of complex structure, and the input impedance of the antenna is high, which is not convenient for direct feeding of the SMA interface. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an ultra-wideband conical logarithmic helical antenna, which is convenient f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/10H01Q1/38H01Q1/48H01Q1/50H01Q21/00
CPCH01Q19/104H01Q1/50H01Q1/48H01Q21/0006H01Q21/0075H01Q1/38
Inventor 马长春邓万强
Owner 杭州永谐科技有限公司
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