Antenna with various pattern reconfigurable characteristics

A pattern and characteristic technology, applied in the direction of antenna, antenna support/installation device, antenna grounding switch structure connection, etc., can solve the problems of limited gain, insufficient scanning accuracy, complex structure, etc., to reduce processing complexity, feed power Simple network, high gain effect

Active Publication Date: 2013-11-13
JIANGSU HENGXIN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of performance, it has omni-directional reconfigurable pattern, and can also improve scanning accuracy and multiple working modes according to needs, and the control and feed network are relatively simple, so as to overcome the complex feed structure of traditional omni-directional beam reconfigurable antennas. , limited gain, insufficient scanning accuracy and other shortcomings

Method used

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  • Antenna with various pattern reconfigurable characteristics
  • Antenna with various pattern reconfigurable characteristics
  • Antenna with various pattern reconfigurable characteristics

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Embodiment Construction

[0016] see figure 1 , the radiation unit of the present invention uses domestic F4B substrates connected end to end to form a cylinder with a height of 57.4 mm and a diameter of 90 mm. The inner surface of the cylinder is a dielectric layer, and N=6 rectangular patch copper layers are evenly distributed on the outer surface (P 1 ,P 2 ,P 3 ,P 4 ,P 5 ,P 6 ), each rectangular patch has a height of 45 mm, a width of 35.3 mm, a distance of 6.2 mm from the bottom edge of the substrate, and a distance of 11.7 mm between two adjacent patches. Between two adjacent patches, between the patch and the upper and lower edges of the substrate, there are metal strips for grounding the PIN diode. The metal strip between the two patches is 5.5 mm wide, and the distance between the two patches is equal. The width of the metal strip between the upper and lower bottom edges of the substrate is 5.4 mm. For one of the above rectangular patches (such as P 1 ), PIN diode (PIN 11 ) is welded to...

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Abstract

The invention discloses an antenna with various pattern reconfigurable characteristics. The antenna is characterized in that with the adoption of a capacitor coupled feeding mode, a PIN diode loaded between a patch antenna and a grounding metal bar is controlled so as to control the metal patch to be a radiating unit or to be grounded, and accordingly, the antenna can obtain omnibearing scanning or horizontal omnibearing radiating characteristics. The antenna comprises the radiating unit, a base and a feed network. The PIN diode is used for controlling the patch to be connected or disconnected with the ground, so that various reconfigurable characteristics such as scanning of radiating wave beams in a horizontal plane, omnibearing radiating and the like can be realized. The antenna has the advantages of small scanning stepping, high gains, novel design concept, simple feed network and the like, and can be widely used in fields such as a wireless communication system, a wireless tracing and positioning system and the like.

Description

technical field [0001] The invention relates to a reconfigurable antenna, in particular to an antenna with multiple reconfigurable characteristics in the pattern. Background technique [0002] Reconfigurable antennas are a frontier topic in the field of antenna research, and they are also the development direction of antennas in the future. With the rapid development of wireless communication systems, the design of the antenna system needs to meet the requirements of high channel capacity and high transmission rate. In order to reduce the complexity of system design, simplify the electromagnetic environment, and save energy, it is often required that an antenna has a variety of different jobs. mode, and can easily switch between different modes. Pattern reconfigurable antennas are a major research direction of reconfigurable antennas. Electromagnetic energy can be concentrated in the area that needs to be covered by scanning and rotating the pattern, which can not only real...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/24H01Q1/38H01Q1/50H01Q1/12
Inventor 林先其张瑾于家伟靳俊叶张榕
Owner JIANGSU HENGXIN TECH CO LTD
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