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High-precision log-periodic dipole antenna integral forming method

A vibrator antenna, logarithmic period technology, applied in the direction of antenna, antenna parts, antenna support/installation device, etc., can solve the problem that it is difficult to meet the requirements of high phase and high wide-angle gain of several-cycle antennas, and reduce the effective The effect of product weight, improving mechanical properties, and improving product structural strength

Inactive Publication Date: 2018-08-03
CHINA ELECTRONICS TECH GRP NO 39 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The current common radiating oscillator and assembly line forming process is difficult to meet the requirements of high phase and high wide-angle gain of the logarithmic periodic antenna

Method used

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  • High-precision log-periodic dipole antenna integral forming method
  • High-precision log-periodic dipole antenna integral forming method
  • High-precision log-periodic dipole antenna integral forming method

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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0044] The oscillator antenna of the logarithmic periodic antenna is mainly composed of pentagonal collection lines and multi-layered rectangular cross-section radiation oscillators. The implementation plan is mainly explained in detail from the aspects of the structure design, material selection, molding process and inspection methods of the oscillator antenna. .

[0045] 1. Structural design of high-precision integrally formed vibrator antenna

[0046] The design of the vibrator antenna is to propose the working bandwidth of the antenna, the radiation pattern, gain and voltage standing wave ratio on the feeder of the antenna in the working frequency band according to the needs of the application, and determine the structural geometry of the antenna.

[0047...

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Abstract

The invention provides a high-precision log-periodic dipole antenna integral forming method. The main structure of a high-precision log-periodic dipole antenna comprises an assembly line with a pentagonal cross section, and multi-layer radiation oscillators which are integrally designed and attached to the assembly line and have different lengths and different cross sections. According to productworking requirements, detailed structural design is carried out through theoretical calculation and simulation, materials meeting task requirements are selected, complex workpiece machining is carriedout by means of various combined machining processes such as numerical control machining, precision wire cutting and deep hole machining, a 3D laser scanner is adopted to perform effective precisionmonitoring on the complex shape of the high-precision log-periodic dipole antenna and screening qualified parts after the machining is completed, and the structural consistency between products is ensured to guarantee requirements for electrical performance of log-periodic antennas after assembly. The high-precision log-periodic dipole antenna integral forming method effectively solves the problems of guaranteeing high phase consistency, wide frequency band, wide directional diagram, high gain and the like between different log-periodic antennas in the L / S / C band, effectively reduces product weight, improves structural strength of products, broadens the application range of measurement and control type log-periodic antennas, and is adapted to different application fields of the products.

Description

technical field [0001] The invention belongs to the technical field of measurement and control logarithmic period antenna development, and specifically relates to a high-precision logarithmic period dipole antenna integral forming method. Background technique [0002] The dipole antenna is an important component of the logarithmic periodic antenna, which is mainly composed of collection lines, radiation dipoles with different cross-sections and lengths, etc., see figure 1 As shown in Fig. 1, the position accuracy of the radiating oscillators directly determines the electrical performance index of the antenna. The common forming processes of radiating vibrator and assembly wire mainly include screwing, welding, riveting, gluing, etc. The disadvantages mainly include low mechanical precision, high weight, and low mechanical reliability. [0003] Measurement and control logarithmic periodic antennas are mainly used for large-angle interferometric measurements. There are two te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/12H01Q1/36H01Q1/50
CPCH01Q1/12H01Q1/36H01Q1/364H01Q1/50
Inventor 李启明李惟韬赵泓滨沈军龙
Owner CHINA ELECTRONICS TECH GRP NO 39 RES INST
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