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Method for easily adjusting overlapping of electric axes of multiple antennas

A technology of composite antenna and adjustment method, which is applied to antenna radiation pattern, control using feedback, etc., can solve the problems of long adjustment time, complex structure, and complicated erecting optical axis system, etc., and achieves simple structure, high integration, and adjustment range. big effect

Active Publication Date: 2018-01-05
SHANGHAI RADIO EQUIP RES INST
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, this method needs to set up the optical axis system, which is more complicated, and it needs to be calculated and judged to be corrected.
This method has disadvantages such as complex structure and long adjustment time.

Method used

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  • Method for easily adjusting overlapping of electric axes of multiple antennas
  • Method for easily adjusting overlapping of electric axes of multiple antennas
  • Method for easily adjusting overlapping of electric axes of multiple antennas

Examples

Experimental program
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Embodiment Construction

[0035] The seeker antenna is mainly in the form of a flat plate slot antenna, which is composed of a waveguide slot radiation front, a power distribution network, a waveguide sum difference network, and a transmission waveguide. The waveguide slot radiation front of the antenna is composed of several radiation waveguides arranged in parallel, and there are parallel cracks designed according to the amplitude distribution requirements of the antenna mouth surface on the radiation waveguide.

[0036] Using the port transmission characteristics of the H-face T-joint and the E-face T-joint, the electromagnetic waves fed into the four feeder waveguides are summed and differenced to form a sum-difference channel. In this way, the waveguide and the difference network are formed, and then the transmission waveguide is used to output the signal output by the waveguide and the difference network to the mixer from the designated antenna output position. The antenna system is composed of t...

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Abstract

The invention relates to a method for easily adjusting the overlapping of the electric axes of multiple antennas. The method configures electric axis regulators which separately correspond to a plurality of zones of multiple antennas so as to perform phase adjustment, and the electric axes of the antennas are adjusted by the electric axis regulators, such that the adjusted electric axes of the antennas overlap a mechanical axis. According to the invention, the method herein, by adding electric axis regulators or replacing electric axis regulators at different phases, can adjust the electric axis of a monopulse antenna until the electric axis and the mechanical axis completely overlap. By adding metal adjusting blocks on the broad face of a waveguide, the method herein can increase or decrease signal transmission paths, adjusts signal phase, designs the structure of wide phase shift of the electric axis regulator, and achieves impedance matching. According to the invention, the method therein has the advantages of simple structure, easy implementation, wide adjustment range, and high integration, and is suitable for adjusting the electric axes of multiple antennas of any specification.

Description

technical field [0001] The invention is directly applied to the technical field of compound antenna assembly and debugging, and is especially suitable for multi-mode compound or multi-band compound antenna debugging. Background technique [0002] The measurement accuracy of the composite antenna directly affects the accuracy of target indication, and thus directly affects the hit rate of the fire control system. After measuring the mechanical axis of the antenna, it is necessary to adjust the electrical axis to coincide with the mechanical axis through the correction of the electrical axis, and the electrical axis between the antenna and the antenna also needs to be adjusted to coincide with each other, so as to improve the indication accuracy of the antenna. The electrical axis of the antenna refers to the antenna beam pointing parallel to the antenna normal, that is, the zero pointing of the antenna. [0003] Composite antennas have the characteristics of high dimensional...

Claims

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Application Information

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IPC IPC(8): G05D3/12G01R29/10
Inventor 商远波王瑜宋诚夏龙安
Owner SHANGHAI RADIO EQUIP RES INST
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