30mhz~512mhz multi-band 2.5m whip antenna

A multi-band, 30mhz technology, applied in the field of antennas, to achieve the effect of "anti-destruction and three defenses" and easy disassembly and assembly

Inactive Publication Date: 2012-04-04
陕西烽火诺信科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a 30MHz~512MHz multi-band 2.5m w

Method used

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  • 30mhz~512mhz multi-band 2.5m whip antenna
  • 30mhz~512mhz multi-band 2.5m whip antenna
  • 30mhz~512mhz multi-band 2.5m whip antenna

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Embodiment Construction

[0023] refer to figure 2 and image 3 , the present invention divides 30MHz~512MHz into three frequency bands of high, medium and low, and the three frequency bands respectively adopt the structural forms of monopole antenna, sleeve antenna or similar sleeve antenna, and combine these antennas into one body through electronic switches , forming a 30MHz-512MHz ultra-wideband frequency multiplexing single-whip antenna structure. The height of the whole antenna is 2.5m, including the base 6, the lower radiator 7, and the upper radiator 5. Wherein the lower radiator 7 includes a lower section copper tube 1 and an upper section copper tube 3, the upper section and the lower section copper tube are connected by a transmission line transformer 2, and the transmission line transformer is used as an electronic switch to control high and low frequency conversion, and to control the antenna Impedance matching is carried out to make the antenna have broadband characteristics, and it do...

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Abstract

The invention provides a 30MHz-512MHz multi-band 2.5m whip antenna, which mainly solves the impedance matching problem between the antenna and the radio station. The entire antenna includes: a radiator, a coaxial cable 18, and a base 6. The radiator adopts a combined structure of a lower radiator 7 and an upper radiator 5. The lower radiator includes a lower copper tube 1 and an upper copper tube 3, two copper tubes The tubes are connected by a transmission line transformer 2, and a radiation oscillator 4 is fixed in the upper copper tube to form a sleeve antenna structure. The transmission line transformer adopts a three-winding center tap, and is equipped with four coils, which are respectively connected to the inner conductor, outer conductor, upper section copper tube, and lower section copper tube of the coaxial cable. It is used as both an electronic switch and an impedance matching element. Ultra-wideband characteristics in the 30MHz~512MHz frequency band. The invention has the advantages of wide frequency band, small standing wave ratio, high gain, no need for tuning, and can be directly matched with radio stations, and is suitable for installation on various armored vehicles and ships.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an ultra-wideband antenna suitable for use as an antenna for VHF / UHF multi-band radio stations. Background technique [0002] At present, the frequencies used by our military radio stations are generally divided into 4 frequency bands, namely 1.6MHz~30MHz, 30MHz~88MHz, 225MHz~512MHz, 400MHz~2500MHz, and the antennas that match the radio stations are also divided into the above 4 frequency bands. However, with the development of our military's new-generation communication technology system, new requirements have been put forward for the frequency band range, especially the pre-research software radio station, whose frequency range is 1.6MHz to 2500MHz. In such a wide frequency range, the existing The existing antenna system can no longer adapt to the development of new communication technologies, especially sharing multiple antennas will have many disadvantages in engineering, su...

Claims

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Application Information

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IPC IPC(8): H01Q9/34
Inventor 程智辉赵艳龙拉怀谢谢陈文君张志云
Owner 陕西烽火诺信科技有限公司
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