Super short wave all-frequency band combined airplane antenna

An ultra-short-wave, full-band technology, which is applied to antennas, loop antennas, and radiating unit covers, can solve the problems that antennas cannot meet omnidirectional radiation and gain requirements, limited communication capabilities, and difficulty in full-band, etc., to improve airborne characteristic gain. , to ensure effective transmission and avoid the effect of large attenuation

Inactive Publication Date: 2013-01-02
成都晶成电子设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to cover the entire frequency band with only one microstrip antenna
Therefore, the antenna cannot meet the specified omnidirectional radiation and gain requirements, and the communication capability is very limited.

Method used

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  • Super short wave all-frequency band combined airplane antenna
  • Super short wave all-frequency band combined airplane antenna
  • Super short wave all-frequency band combined airplane antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0026] When the operating frequency of the antenna is high, if the antenna radiator is made of a metal plate, the antenna current will only flow along the longitudinal edge of the plate. Based on the super-skin effect of high-frequency current, the plate edge of the reflective panel 20 can be cut into concave-convex arc tooth shape instead of a hollow dragon shape, and the effect characteristic of low-frequency extension can still be achieved.

[0027] A loading circuit 19 may also be connected between the lower part of the double-sided copper-clad reflective panel and the metal conductor antenna base 6 .

Embodiment 3

[0029] The antenna radiator electrically connected to the microstrip antenna in the present invention may be a linear antenna or a planar antenna parallel to its radome.

[0030] The loading circuit may be composed of a resistor, or a resistor, an inductance coil, or a series or parallel equivalent circuit of a resistor, an inductance coil, or a capacitor. Or the equivalent circuit of a low-pass filter. The loading circuit is specifically defined in relevant textbooks.

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Abstract

The invention discloses a USW full frequency band combinatorial airborne antenna, which comprises a structure formed by a 108 to 400 MHz micro-strip antenna which is installed in the antenna fairing;, on the micro-strip antenna fairing, at least one 30 to 88 MHz antenna radiator that is electrically and parallel connected with the micro-strip antenna fairing is installed, thus forming a USW high and low frequency bands antenna combinatorial structure. By adopting an optimized combination of a double-layer capping cordwood series structure, the invention not only further improves the low frequency characteristic of the antenna, enhances the insulation between the micro-strip antenna and an antenna with a low frequency expander circuit, but also greatly avoids obstruction and interference between the high and the low frequency bands of the two paralleled upper and lower antennas. A combined loop circuit tower-layer expander circuit antenna array excellently solves the contradiction of the deviation between aircraft air performance requirement and antenna frequency band wavelength characteristic. Proved by tests, gain is increased by over 13dB, radiation power is increased by 20 times and air-to-air communications distance is increased by over 4 times.

Description

technical field [0001] The invention relates to a large and complex aircraft airborne antenna, in particular to an airborne ultra-short wave omnidirectional antenna for air-to-ground, air-to-air communication or data transmission, which is matched with an airborne radio station or data transmission equipment in the corresponding frequency band. Background technique [0002] The function and performance of the antenna structure installed on the aircraft are different from the general engineering structure. It not only needs the electrical performance requirements of the antenna, but also meets the weight requirements, external dimensions, interface relations, and structural requirements, and is also subject to aerodynamic performance requirements. and loading conditions and constraints. The weight requirements of the installed equipment must be met as much as possible and the weight reduced as much as possible. The aerodynamic performance requirements of aircraft or other ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q7/00H01Q13/08H01Q19/10
Inventor 覃毅
Owner 成都晶成电子设备有限公司
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