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Superhigh-frequency radio frequency identification micro-strip conformal yagi antenna

A technology of radio frequency identification and Yagi antenna, which is applied in the direction of antenna, radiating element structure, electrical components, etc., and can solve the problems of large volume and small gain of flat-panel antennas

Inactive Publication Date: 2014-07-16
JIANGSU BELLON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of large volume and small gain of the panel antenna of the automobile electronic license plate reader, the present invention proposes an ultra-high frequency radio frequency identification microstrip conformal Yagi antenna

Method used

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  • Superhigh-frequency radio frequency identification micro-strip conformal yagi antenna
  • Superhigh-frequency radio frequency identification micro-strip conformal yagi antenna

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Embodiment Construction

[0016] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the above-mentioned and other purposes, features and advantages of the present invention will be clearer. Like reference numerals designate like parts throughout the drawings. The drawings have not been drawn to scale, emphasis instead being placed upon illustrating the gist of the invention.

[0017] figure 1 is a schematic diagram of the overall structure of the front of the dielectric substrate of the present invention, figure 2 It is a schematic diagram of the overall structure of the back side of the dielectric substrate of the present invention, such as figure 1 and figure 2 As shown, the UHF radio frequency identification microstrip conformal Yagi antenna includes: a dielectric substrat...

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Abstract

The invention provides a superhigh-frequency radio frequency identification micro-strip conformal yagi antenna. The superhigh-frequency radio frequency identification micro-strip conformal yagi antenna comprises a dielectric substrate, active oscillators, guiding oscillators, reflection oscillators, a micro-strip line and a feeder line. The active oscillators, the reflection oscillators and the guiding oscillators are etched on the dielectric substrate through the aluminum or copper etching technology or printed on the dielectric substrate through the printing technology. The guiding oscillators are distributed on the front face of the dielectric substrate at equal intervals side by side and in parallel. The reflection oscillators are located on the rear of the active oscillators and the back face of the dielectric substrate. Each active oscillator is composed of two quarter-wave oscillators, and the active oscillators are parallel with the guiding oscillators and the reflection oscillators and located on the front face and the back face of the dielectric substrate. The micro-strip line is perpendicularly connected to the active oscillators and the reflection oscillators and connected to the contact of the feeder line in parallel for short circuit protection, and the feeder line is connected to an antenna interface of a superhigh-frequency radio frequency identification reader-writer.

Description

technical field [0001] The invention relates to a microstrip conformal Yagi antenna, in particular to a microstrip conformal Yagi antenna for ultra-high frequency radio frequency identification. Background technique [0002] At present, more and more electronic license plates based on the latest RFID radio frequency identification technology are appearing in the intelligent traffic management of cities and highways. At present, the most common reader antenna is a flat-panel antenna. The flat-panel antenna is large in size, and the wind resistance installed on a 6-meter-high gantry is relatively large, which brings certain safety hazards. Yagi antenna is a typical directional antenna. Since it was invented and named "Yagi-Uda antenna" in the last century, or "Yagi antenna" for short, it has been favored by people for its simple structure and high gain. However, the traditional Yagi antenna Usually the size is relatively large, which is not conducive to carrying and beautifyi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q19/30
Inventor 陈昊任国滨
Owner JIANGSU BELLON TECH
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