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Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna

A low-frequency vibrator and array antenna technology, applied in antennas, antenna coupling, antenna arrays, etc., can solve the problems of inability to obtain a pattern, high system isolation, large mutual influence, and small antenna volume, so as to improve the degree of deviation, increase the isolation, the effect of improving the overall performance

Active Publication Date: 2016-01-27
GUANGDONG BROADRADIO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All of the above are arranged to reduce the mutual influence between high and low frequency radiating units, and the influence on eliminating high and low frequency radiating units is limited
[0004] Due to the requirements of antenna miniaturization and high system isolation, the same antenna rarely includes two low-frequency systems on the market. Due to the small size of the antenna, the mutual influence between the two low-frequency systems is large, and it is impossible to obtain a good pattern and high system. isolation

Method used

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  • Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna
  • Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna
  • Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Figure 1 to Figure 3 An ultra-broadband dual-polarization low-frequency vibrator unit is shown, including a vibrator 2 , a base plate 3 connected to both ends of the vibrator 2 , a radiation arm 1 , and a feed pin 4 connected to the vibrator 2 . The vibrator 2 includes four vibrator pieces that are orthogonally clamped, and the centers of the blades of two adjacent vibrator pieces are respectively provided with corresponding grooves 23 and bosses 24, and through their clamping positions, any two non-adjacent vibrator pieces are connected to each other. Parallel, two adjacent vibrator pieces are perpendicular to each other, and four vibrator pieces surround a square box-shaped vibrator 2 . The tops of the four vibrator pieces are all provided with first bosses 21 and the bottoms are provided with second bosses 22 , the inner side of the vibrator pieces is covered with a balun 25 , and the outer side is covered with a matching circuit 26 . The matching circuit 26 is con...

Embodiment 2

[0037] Image 6 It shows a multi-band array antenna, in which the low-frequency dipole units are placed staggered in two adjacent rows, and other structures are the same as those in Embodiment 1, so details are not repeated here.

Embodiment 3

[0039] Figure 7A multi-band array antenna is shown, in which the high-frequency vibrator units are increased to three columns, and other structures are the same as those in Embodiment 1, so they will not be repeated.

[0040] In summary, the use of the vibrator arm with the resonant circuit eliminates the influence of the existence of the low frequency vibrator on the pattern of the high frequency vibrator; the box-type feeding vibrator sheet can effectively provide the feed balance, which is beneficial to improve the deviation of the antenna beam; The base plate with coupler effectively improves the isolation between different systems of the antenna and improves the overall performance of the antenna; the S-shaped arrangement of the low frequency oscillators effectively reduces the beam width to miniaturize the antenna.

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Abstract

The invention relates to an ultra broadband dual polarization low frequency oscillator unit and a multi-frequency-range array antenna. The ultra broadband dual polarization low frequency oscillator unit comprises an oscillator, a pedestal plate, a feed needle and radiation arms, wherein two end of the oscillator are respectively connected with the pedestal plate and the radiation arms; the feed needle is arranged on the oscillator; the oscillator includes four oscillator sheets which are clamped orthogonally; corresponding grooves and bosses are respectively arranged at the center of the blades of the adjacent two oscillator sheets; any two non-adjacent oscillator sheets can be parallel to each other through clamping of the bosses and the grooves; the number of the radiation arms is 4; every two radiation arms are arranged orthogonally; a fine copper foil and a crude copper foil cover the surface of two ends of each radiation arm; the fine copper foils and the crude copper foil are respectively equivalent to the inductance and the capacitance under high frequency; and the middle segment of each radiation arm is also provided with a double-faced copper foil with a through hole. As the oscillator arm with a resonance circuit is used, the influence of existence of a low frequency oscillator on a high frequency oscillator directional diagram is eliminated; the irrelevance of the antenna wave beam is improved; and the overall performance of the antenna is improved so that the antenna can be miniaturized.

Description

technical field [0001] The invention relates to the technical field of antenna dipoles, and more specifically relates to an ultra-broadband dual-polarization low-frequency dipole unit and a multi-band array antenna thereof. Background technique [0002] In the period when 2G, 3G and 4G networks coexist, multiple systems using different frequency bands exist at the same time, and it is necessary to use base station antennas that can work in different frequency bands. Using ordinary narrow-band antennas, a base station needs to arrange many sub-antennas, which increases system complexity and property costs. In order to reduce the cost of network construction, multi-standard antennas, broadband and miniaturization have become one of the current hot spots. [0003] Due to the limitation of the bandwidth of the radiating unit, in order to be compatible with various communication systems, there must be two kinds of radiating units in the antenna: one high-frequency radiating unit...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H01Q1/50H01Q1/38H01Q1/12H01Q21/00H01Q19/10
Inventor 张劭吴壁群苏振华吴泽海
Owner GUANGDONG BROADRADIO COMM TECH
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