Two-side symmetrical arc arm phase shifter of electricity-regulating antenna

An ESC antenna and phase shifter technology, applied in antennas, circuits, electrical components, etc., can solve the problems of ESC antenna pattern distortion, design difficulty, and difficult power distribution, etc., and achieve good impedance matching.

Inactive Publication Date: 2008-05-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of this phase shifter is more compact, but it is also more difficult to design, and it is more difficult to achieve equal power distribution
[0025] All in all, the defect of the existing pointer phase shifter is that although i

Method used

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  • Two-side symmetrical arc arm phase shifter of electricity-regulating antenna
  • Two-side symmetrical arc arm phase shifter of electricity-regulating antenna
  • Two-side symmetrical arc arm phase shifter of electricity-regulating antenna

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Embodiment

[0050] As shown in Figures 1 and 2, the double-sided symmetrical arc arm phase shifter of the electronically adjustable antenna includes an arc arm, a rotating arm, and a feeder 9. The large and small arc arms 14 and 13 are symmetrically located on two concentric circles. The center of the circle is the rotation point 6, the radius ratio of the large arc arm 14 and the small arc arm 13 is 2:1, the rotating arm is suspended above the feeder 9 and the two arc arms 14, 13, and the rotating arm includes a straight section 10, a corner section 7. One end of the corner section 7 is connected to the central symmetrical position 8 of the straight section in a T-shape, and the other end of the corner section 7 is connected to the feeder line 9 at the rotation point 6 using gap coupling (side feed type) or coaxial excitation (center feed type) Suspension connection, the two ends 11, 12 of the straight section 10 of the rotating arm and the two arc arms 13, 14 respectively adopt T-shaped ...

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Abstract

The present invention provides an arc-arm phase shifter symmetrically arranged on both sides of an electric antenna, including an arc arm, a rotating arm and a feeder line. The two big and small arc arms are symmetrically arranged on two concentric circles, the circle center is the rotating point and the diameter ratio between the big arc arm and the small arc arm is 2:1. The rotating arm is suspended above the feeder line and the two arc arms, including a straight section and a cape section; one end of the cape section is connected in T shape with the symmetric center of the straight section and the other end of the cape section is connected in suspension with the feeder line in the rotating point; the two ends of the straight section of the rotating arm are respectively connected in T-shaped suspension with the two arc arms. The rotating point and the two ends of the rotating arm are located on a same straight line. The input terminal of the feeder line is connected with a feeder source and the four output terminals of the two arc arms are respectively connected with the radiation unit of antenna array. The present invention with simple structure and stable performance can effectively control and adjust the phase difference among radiation units of the antenna array and ensure the constant-power output on each output terminal.

Description

technical field [0001] The invention relates to the technology of base station electronically adjustable antenna equipment, in particular to a double-sided symmetrical arc arm phase shifter for the electronically adjustable antenna. Background technique [0002] The base station is an important part of the mobile communication system. The antenna is the "eyes and ears" of the base station, and is a key component of the front end of the base station, which plays the role of receiving and transmitting signal carriers. In the mobile communication network, the antenna directly determines the coverage and signal transmission of the base station network, and is very important to the operation quality of the mobile communication system. With the development and popularization of mobile communication systems 2.5G and 3G systems, the distribution of base stations in cities is becoming more and more dense, and there are more and more communication frequency bands, which directly brin...

Claims

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Application Information

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IPC IPC(8): H01Q3/30H01Q3/32H01P1/165H01P1/18
Inventor 褚庆昕周竞科
Owner SOUTH CHINA UNIV OF TECH
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