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Broadband omnidirectional/directional pattern reconfigurable antenna

A technology for reconfiguring antennas and directional diagrams, applied to antennas, loop antennas, antenna grounding devices, etc., can solve the problems of fewer antennas and narrow bandwidth, and achieve the effect of satisfying structure, fewer RF switching diodes, and broadband reconfigurability

Pending Publication Date: 2019-11-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing omnidirectional / directional pattern reconfigurable antennas use more RF switch diodes or narrow bandwidth, etc. Only three RF diode switches are used to realize broadband omnidirectional / directional pattern reconfigurable fewer antennas

Method used

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  • Broadband omnidirectional/directional pattern reconfigurable antenna
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  • Broadband omnidirectional/directional pattern reconfigurable antenna

Examples

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0044] Such as figure 1As shown, a broadband omnidirectional / directional pattern reconfigurable antenna includes a radiation unit 1, a feed unit 2, a feed metal post 3, a short-circuit metal post, a coaxial line 5, a floor 6, a support post 7, a short-circuit A needle 8, a dielectric substrate and three radio frequency switching diodes for controlling the working mode of the antenna, the three radio frequency switching diodes are respectively: a first radio frequency switching diode 9, a second radio frequency switching diode 10 and a third radio frequency switching diode 11; The dielectric substrate has two layers including an upper dielectric substrate and a lower dielectric substrate;

[0045] The radiation unit 1 is loaded at the center of the front of the upper die...

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Abstract

The invention discloses a broadband omnidirectional / directional pattern reconfigurable antenna, and the antenna comprises a radiation unit, a feed unit, a feed metal column, a short circuit metal column, a short circuit pin, a floor plate, a coaxial line, a support column, a dielectric substrate and a radio frequency switch diode for controlling the working mode of the antenna. The dielectric substrate comprises an upper layer dielectric substrate and a lower layer dielectric substrate. The radiation unit comprises an inner circle and an outer circular ring which are loaded on the front surface of the upper dielectric substrate; the floor plate is loaded on the back surface of the lower dielectric substrate. The feed unit comprises a metal circle and a short circuit microstrip line, and the feed unit is loaded on the back surface of the upper dielectric substrate; the short circuit metal column is placed in a gap between the inner circle and the outer ring, and the short circuit pin isconnected with the feed unit and the outer ring of the radiation unit; the feed metal column is connected with the floor and the feed unit, and the antenna adopts coupling feed. By controlling the state of a radio frequency switch diode, the antenna can realize reconstruction of omnidirectional radiation characteristics and directional radiation characteristics of a broadband.

Description

technical field [0001] The invention relates to the field of mobile communication antennas, in particular to a broadband omnidirectional / directional reconfigurable antenna. Background technique [0002] With the advancement of science and technology, people's demand for information has increased unprecedentedly, making communication technology develop by leaps and bounds. As an important branch of the communication field, wireless communication has been widely used in various fields such as national defense and people's livelihood because it gets rid of the dependence on physical transmission lines. The antenna is the information entrance and exit of radio equipment, and the performance of the antenna directly affects the communication quality of the entire wireless communication system. [0003] Nowadays, wireless communication is gradually accelerating into the multi-functional, large-capacity, and ultra-broadband era. The rapid development of modern wireless communicatio...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q3/00H01Q3/24H01Q7/00
CPCH01Q1/38H01Q7/00H01Q1/48H01Q1/50H01Q3/00H01Q3/247Y02D30/70
Inventor 李融林肖美珍崔悦慧
Owner SOUTH CHINA UNIV OF TECH
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