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Differential feed dual-polarization direction diagram reconfigurable antenna

A technology for differential feeding and reconfiguration of antennas, applied to antenna unit combinations, antennas, resonant antennas, etc. with different polarization directions, which can solve problems such as unfavorable antenna integration with RF front-end, unoptimistic solutions, and RF front-end loss. Achieve the effect of simple structure, low production cost, stable impedance bandwidth and pattern bandwidth

Pending Publication Date: 2019-05-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the use of balun will cause RF front-end loss and reduce system efficiency. The solution is not optimistic, which is not conducive to the integration of antenna and RF front-end

Method used

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  • Differential feed dual-polarization direction diagram reconfigurable antenna
  • Differential feed dual-polarization direction diagram reconfigurable antenna
  • Differential feed dual-polarization direction diagram reconfigurable antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0050] Such as figure 1 As shown, a reconfigurable antenna with differential feeding dual polarization pattern is a symmetrical structure about the center of the dielectric substrate, including a dielectric substrate 1, an antenna radiation unit, a microstrip line feed structure, a parasitic unit and a coaxial feeder unit;

[0051] Such as figure 2As shown, the length Subx of the dielectric substrate 1 is 54mm, and the width Suby is 54mm; the antenna radiation unit includes a first pair of double dipoles 2A, 2B and a second pair of double dipoles 2C, 2D, and two pairs of double dipoles The subs are connected through parallel microstrip lines, and are perpendicular to each other. In this embodiment, the parallel microstrip lines connected by the first pair of double dipoles are placed vertically, symmetrical about the Y axis of the dielectric substrate, and the second pair of double dipoles are connected The parallel microstrip lines are placed horizontally and are symmetrica...

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Abstract

The invention discloses a differential feed dual-polarization direction diagram reconfigurable antenna. The antenna comprises a medium substrate, an antenna radiation unit, a micro-strip line feed structure, parasitic units and a coaxial feed unit; the antenna radiation unit comprises a first double dipole and a second double dipole vertical to each other; four pairs of parasitic units are arranged around the antenna radiation unit; each pair of parasitic units load the switch; the micro-strip line feed structure comprises a first feed micro-strip line and a second feed micro-strip line in mutual vertical arrangement, and an intersection point is located at a center point of the medium substrate; and the coaxial feed unit performs the feeding on the antenna radiation unit. The differentialfeed structure disclosed by the invention is convenient to integrate with a radio frequency front-end. The differential feed dual-polarization direction diaphragm reconfigurable antenna has the advantages of being small in volume, light in weight and simple in structure, the polarization way of an x axle direction and a y axle direction, and the reconfigurable direction diaphragm of each of the Esurface and the F surface can be realized.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a reconfigurable antenna with a differential feeding dual polarization pattern. Background technique [0002] With the rapid development of wireless communication technology, antenna technology has also been developed rapidly. The reconfigurable antenna is the product of the intersection of antennas and radio frequency technology, microelectronics, electromechanical and other disciplines. It can dynamically adjust the aperture and structure of the antenna according to the working environment of the antenna to change some parameters of the antenna in real time, making it achieve different functions. Pattern reconfigurable antenna is an important category of reconfigurable antenna research field, it has the ability to reconfigure its radiation pattern, by changing the pattern shape or Radiation direction of the main beam. The pattern reconfigurable antenna can adjust the maxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q3/00H01Q9/16H01Q15/24H01Q19/02H01Q25/04
CPCH01Q21/24
Inventor 靳贵平黎淼兰曾广洁廖绍伟
Owner SOUTH CHINA UNIV OF TECH
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