A half wave vibrator antenna array

A half-wave vibrator and antenna array technology, applied in the directions of antenna arrays, antennas, electrical components, etc., can solve problems such as the bottleneck of antenna cost and price, increase of antenna cost, and complicated process, so as to solve the problem of high cost, improve antenna gain, reduce The effect of complexity

Inactive Publication Date: 2008-03-19
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many professional PCB (circuit board) design and antenna manufacturers at home and abroad. For example, Shenzhen Huaji Technology Co., Ltd. in China, but the disadvantages of PCB board design are high cost and complicated process, which makes the production The cost of the antenna increases accordingly
Especially in the current network planning, the cost of the antenna has become a major price bottleneck

Method used

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  • A half wave vibrator antenna array
  • A half wave vibrator antenna array
  • A half wave vibrator antenna array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] As shown in Figure 2, first take a rectangular flat long iron sheet, the length, width and thickness are according to the dimensions shown in Figure 1: H1=26mm, H2=4mm, H3=1.2mm and folded into two vibrators, and the middle part is folded into The "U" shape shown in Figure 2. Solder it with a wire at point A near the feed point HO on one end of the half-wave vibrator, and connect the other end of the wire to point B on the other half-wave oscillator near the feed point HO and fix it with solder, that is, short-circuit HO with a wire , that is, a half-wave dipole antenna is obtained. The input impedance of a single half-wave dipole antenna is 75 ohms, and the impedance of the coaxial cable is 50 ohms. Use the same method to make four identical half-wave dipole antennas, and weld them on the reflector according to the position shown in Figure 3. The size of the reflector is 180×270mm 2 , the distance between the reflector and the vibrator is a quarter wavelength, the m...

Embodiment 2

[0039] Same as Embodiment 1, except that the half-wave vibrator antenna is connected in a 1x4 manner, as shown in Figure 5, the length of the transmission line is L' 1 : meet the odd multiple of half wavelength, here take half wavelength, L' 2 : Satisfies an even multiple of half a wavelength, here take a wavelength, L' 3 : It satisfies an even multiple of half a wavelength. Here, a wavelength is chosen to meet the design scheme of the impedance-matched transmission line. The achieved performance index is a gain of 14~15dB, a horizontal lobe width of about 45°, and a vertical lobe width of about It is 120°, and the standing wave ratio is less than 1.4dB.

[0040] FIG. 6 is a planar electromagnetic radiation test diagram of Embodiment 1 in the vertical direction at 2.45 GHz.

[0041] FIG. 7 is a planar electromagnetic radiation test diagram of Embodiment 1 in the horizontal direction at 2.45 GHz.

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Abstract

The invention relates to a half-wave element antenna array, belonging to the field of radio transmitting technology. The half-wave element antenna array is composed of a plurality of half-wave element antennae that are connected withgether via the leading-outs of each element, the antenna array is fixed on a reflecting plate, which is covered with an aluminum foil. The invention lowers the high cost of the antenna array production, reduces the complexity of production and design, improves gain of the antenna, and controls the direction of polarization and coverage of the antenna.

Description

(1) Technical field [0001] The invention relates to a half-wave vibrator antenna array, which belongs to the technical field of radio transmission. (2) Background technology [0002] Printed circuit board (PCB) appears in almost every electronic device. The main function of the PCB is to provide the mutual electrical connection of the above parts. As electronic devices become more and more complex, more and more parts are required, and the lines and parts on the PCB are becoming more and more dense. The substrate of the board itself is made of insulating and heat-insulating materials that are not easily bent. The small circuit material that can be seen on the surface is copper foil. Originally, the copper foil covered the entire board, but part of it was etched away during the manufacturing process, and the remaining part became a network of small circuits. . These lines are called wires (conductor pattern) or wiring, and are used to provide the circuit connection of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q19/10
Inventor 袁东风孙君刘立国许伟
Owner SHANDONG UNIV
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