High-strength dual-band directional antenna

A directional antenna, dual-band technology, applied to antennas, devices that make antennas work in different bands at the same time, waveguide-type devices, etc., can solve the problems of no antenna system, low structural strength, narrow bandwidth, etc. In-band differential loss is small, and the effect of improving bandwidth

Inactive Publication Date: 2014-02-26
SOUTHEAST UNIV +2
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing antennas either can only work in Western systems or in Eastern systems, and there is no antenna system compatible with both systems, and the radome of this type of antenna is not formed by mold casting. The disadvantages are low structural strength, large size, narrow bandwidth, low gain, and can only work in one band

Method used

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  • High-strength dual-band directional antenna
  • High-strength dual-band directional antenna
  • High-strength dual-band directional antenna

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Embodiment Construction

[0028] A high-strength dual-band directional antenna, comprising: a metal reflection cavity 8, a microstrip plate 6 is arranged in the metal reflection cavity 8, a multiplexer 11 is arranged on the microstrip plate 6, and a main circuit of the multiplexer 11 The coaxial cable 9 is connected to 11-3, the first radiation oscillator 2 and the second radiation oscillator 3 are respectively connected to the first branch 11-1 and the second branch 11-2 of the multiplexer 11, and A radiating oscillator 2 and a second radiating oscillator 3 are covered with a solid radome 1, the first radiating oscillator 2 and the second radiating oscillator 3 adopt a hollow sail-shaped monopole metal oscillator, and the hollow sail-shaped monopole metal The vibrator is composed of a first metal straight bar, a second metal straight bar and an arc-shaped metal bar. The first metal straight bar, the second metal straight bar and the arc-shaped metal bar are connected end to end, and the first metal str...

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Abstract

The invention relates to a high-strength dual-band directional antenna, which comprises a metal reflection cavity. A microstrip plate is arranged in the metal reflection cavity. A multiplexer is arranged on the microstrip plate. A coaxial cable is connected onto the main circuit of the multiplexer. A first radiation oscillator and a second radiation oscillator are respectively connected onto a first branch circuit and a second branch circuit of the multiplexer. Solid antenna domes respectively cover the first radiation oscillator and the second radiation oscillator. The first radiation oscillator and the second radiation oscillator are of hollow sail-shaped monopole metal oscillators. Each hollow sail-shaped monopole metal oscillator consists of a first metal straight strip, a second metal straight strip and an arc-shaped metal strip, wherein the first metal straight strip, the second metal straight strip and the arc-shaped metal strip are head-to-tail connected, three angles formed by the first metal straight strip, the second metal straight strip and the arc-shaped metal strip are acute angles, and metal blocks are arranged or directly welded on the hollow sail-shaped monopole metal oscillators to form internal and external battlement structures.

Description

technical field [0001] The invention relates to an inner and outer battlement-type high-strength dual-band directional antenna suitable for flight carriers. Its typical working frequency bands are P-band and L-band, and it works with vertical polarization. It has high gain, small standing wave, high efficiency, and dual-band operation. , mainly used in identification systems and communication systems of various flight carrier identities. Background technique [0002] At present, civil aviation systems have installed identification systems that are convenient for air traffic control; various military fighter planes in developed countries in Europe and the United States are equipped with identification friend or foe systems based on Western systems, and their main working band is L-band; Military fighter planes are equipped with an identification friend or foe system based on the Eastern system, and its main working band is the P band; while some working fighter planes are equ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/42H01Q5/01H01Q15/14H01P1/203H01Q5/10
Inventor 曹振新王安宁沙本桂
Owner SOUTHEAST UNIV
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