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Novel wide-band omnidirectional antenna

An omnidirectional antenna, broadband technology, applied in antennas, antenna arrays, resonant antennas and other directions, can solve the problems of high processing cost, complex structure, increased cost, etc., to maintain symmetry, good directivity and uniformity, reduce Small size effect

Inactive Publication Date: 2009-03-04
JIANGSU ANTENAI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, antenna products were designed for different working frequency bands. Generally, the size and volume were relatively large. Different communication network systems were designed independently. Whether or not they were compatible or not depended on the bandwidth and corresponding performance of the antenna system. Some communication When the product system is integrated, the frequency and router are used, which is not easy to install and increases the cost. Moreover, all directional antenna products are developed. Although there are a few broadband omnidirectional antenna products, the structure is complex and the processing cost is high. And There are some defects in performance, which are not suitable for promotion, which makes it difficult to cover mobile communication cells. Therefore, it is very necessary to develop a multi-band miniaturized, simple structure, power saving and emission reduction, and low-cost broadband omnidirectional antenna.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 , Figure 4 , where 1 is the upper positioning cover, 2 is the lower positioning cover, 3 is the radome, 4 is the copper tube, 5 is the plastic fixed small plate, 6 is the main feeder, 7 is the outer sleeve, 8 is the inner sleeve, 9 is a large compensation sheet, 10 is a small compensation sheet, 11 is a tilt compensation sheet, 12 is an upper oscillator, 13 is a lower oscillator, 14 is a dielectric ring block, 31 is an upper port, 32 is a lower port, and 34 is a feed point.

[0024] figure 1 It is a low gain (2-3dBi) broadband omnidirectional antenna.

[0025] figure 1 , the signal from the communication machine is fed to the main vibrator via the main feeder 6. Note: the inner and outer conductors of the coaxial feeder are respectively connected to the upper vibrator 12 and the lower vibrator 13 of the main vibrator, and an inner sleeve is set inside the main vibrator The cylinder 8 and the outer sleeve 7 respectively perform impedance and reactance compe...

Embodiment 2

[0028] figure 2 , where 16 is a splitter for one-to-two power splitters, 17 is the first feeder, and 18 is the second feeder.

[0029] figure 2 Broadband full-wire antenna with medium gain (4-6)dBi.

[0030] it is actually made by figure 1The binary antenna array composed of two identical antenna elements is shown by figure 2 It can be seen that the main feeder 6 is divided into two paths through a power divider 16, and feeds the upper main oscillator and the lower main oscillator through the first feeder 17 and the second feeder 18 of equal length. The distance between the upper and lower main oscillators is about 0.8 into 0 (enter 0 is the wavelength corresponding to the center frequency).

Embodiment 3

[0032] image 3 , wherein 24 is the third feeder, 25 is the fourth feeder, and 26 is divided into four power splitters.

[0033] image 3 It is a broadband omnidirectional antenna with high gain (7-11)dBi.

[0034] it is actually made by figure 1 A quaternary antenna array composed of four identical antenna elements is shown, consisting of image 3 It can be seen that the main feeder 6 is divided into four routes through a power divider 26, and the first feeder 17, the third feeder 24, the second feeder 18, and the fourth feeder 25 of equal length feeders respectively feed the four feeders arranged in a straight line up and down. Feed from the main vibrator, the distance between the upper and lower main vibrators is about 0.8 0 (enter 0 is the wavelength corresponding to the center frequency).

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Abstract

The invention relates to a novel wide-band omnidirectional antenna; a main feeder (6) of the invention feeds power to a main element which comprises an upper element (12) and a lower element (13); the invention is characterized in that lower ports (32) of the upper element (12) and the lower element (13) are short-connected together and a plastic fixed small plate (5) is arranged between the ports; a hollow copper tube (4) perforates between the main elements; an inner layer sleeve (8) and an outer layer sleeve (7) are respectively sheathed at the outer side of the copper tube (4); and two layers of dielectric ring blocks (14) are added in the inner layer sleeve (8) of the upper element (12). The middle beginning section in the main element adopts a gradient transition form and an inclined angle between the gradient part and the central copper tube (4) is 30 degrees to 45 degrees; the thickness of the dielectric ring block (14) is adjustable and the distance between the two layers of the dielectric ring blocks (14) is also adjustable.

Description

technical field [0001] The invention relates to a new type of broadband omnidirectional antenna, which is used for sending or / and receiving radio signals in all communication network systems in the field of communication and mobile communication. The frequency coverage range is 806-960, 1710-2170, 2400- 2500MHz new broadband omnidirectional antenna. Technical field: radio communication equipment, electromagnetic field and microwave technology, mobile communication antenna. Background technique [0002] As radio communication equipment and electronic equipment are developing towards multi-function, miniaturization, ultra-wideband and friendly coordination with the surrounding environment, this makes the research of broadband and miniaturized antennas a hot topic in the mobile communication industry at home and abroad. It involves Antenna loading and reactance compensation technology, optimized design of small antenna appearance, design of small antenna broadband matching net...

Claims

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Application Information

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IPC IPC(8): H01Q9/16H01Q21/00H01Q21/08H01Q1/42
Inventor 邢红兵徐燕李渠塘
Owner JIANGSU ANTENAI TECH
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