A Rigid Structure HF Double Layer Logarithmic Periodic Antenna Sector Array

A log-periodic antenna and rigid structure technology, applied in log-periodic antennas, antenna arrays, radiating element structures, etc., can solve the problems of signal phase noise degradation, incomplete log-periodic antennas, and difficult on-site maintenance.

Active Publication Date: 2021-07-06
泰兴英武舟科技有限公司
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Problems solved by technology

[0002] At present, the antenna curtain of the existing short-wave logarithmic period antenna generally adopts a flexible vibrator and suspension cable structure, and the support tower usually adopts a cable tower. The antenna curtain needs to be lowered to the ground during antenna maintenance and inspection, which makes on-site maintenance difficult.
[0003] In addition, when the flexible structure logarithmic periodic antenna is used as a radar antenna, due to the influence of the wind, the flexible vibrator, suspension cable and supporting tower wire will have a large shake, which will cause the phase modulation of the transmitted / received signal and degrade the phase noise of the signal. Thus affecting the detection performance of the radar system for low-speed targets
So the existing shortwave logarithmic periodic antenna is not perfect enough

Method used

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  • A Rigid Structure HF Double Layer Logarithmic Periodic Antenna Sector Array
  • A Rigid Structure HF Double Layer Logarithmic Periodic Antenna Sector Array
  • A Rigid Structure HF Double Layer Logarithmic Periodic Antenna Sector Array

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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other. The present invention will be further described in detail below in combination with specific embodiments.

[0033] As a preferred embodiment of the present invention, the present invention provides a 3 × 2 logarithmic periodic antenna sector array based on double-layer door-shaped brackets (also can be composed of 2 × 2 unit horizontal logarithmic periodic antenna sector arrays, that is, 2 groups ...

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Abstract

The invention discloses a sector array of short-wave double-layer logarithmic periodic antennas with a rigid structure, which is characterized in that: it includes a plurality of double-layer horizontal logarithmic periodic antennas supported by double-layer door-shaped brackets, and the projection on the horizontal plane forms equal angles Fan-shaped array; each of the double-layer door-shaped brackets includes two supporting towers and two upper and lower beams between the two supporting towers, and each beam is fixed with a pair of short-wave horizontal logarithmic periodic antennas along its length direction to form a fan-shaped inward Double-layer logarithmic periodic antenna phased array has the advantages of full rigidity, wide frequency band, high gain, high power, and good maintainability.

Description

technical field [0001] The invention belongs to the technical field of radio short-wave transmitting (receiving) antennas, in particular to a fan-shaped array of short-wave double-layer logarithmic periodic antennas with a rigid structure. Background technique [0002] At present, the antenna curtain of the existing short-wave logarithmic period antenna generally adopts a flexible vibrator and suspension cable structure, and the support tower usually adopts a guyed tower. The antenna curtain needs to be lowered to the ground during antenna maintenance and testing, making on-site maintenance difficult. [0003] In addition, when the flexible structure logarithmic periodic antenna is used as a radar antenna, due to the influence of the wind, the flexible vibrator, suspension cable and supporting tower wire will have a large shake, which will cause the phase modulation of the transmitted / received signal and degrade the phase noise of the signal. Thus affecting the detection per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/00H01Q1/12H01Q1/36H01Q1/50H01Q3/36H01Q11/10H01Q21/00
CPCH01Q1/005H01Q1/12H01Q1/1242H01Q1/36H01Q1/50H01Q3/36H01Q11/10H01Q21/00
Inventor 柳超吴建清谢顺依张静吴华宇艾文珵
Owner 泰兴英武舟科技有限公司
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