Flexible dual-band planar microstrip antenna

A flat microstrip antenna, dual-band technology, applied to antennas, resonant antennas, devices that make antennas work in different frequency bands at the same time, etc., to achieve the effects of easy pasting, easy portability, and reduced size

Inactive Publication Date: 2013-12-18
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ultra-wideband antenna can solve the problem of narrow bandwidth, but because its bandwidth ranges from 3.1GHz to 10.6GHz, it does not cover the frequency bands commonly used in our lives and is easily interfered, so it is not a good solution

Method used

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Embodiment Construction

[0019] The specific embodiment of the present invention is as figure 1 shown.

[0020] In this embodiment, the flexible dual-band planar microstrip antenna consists of a first U-shaped resonator 1, a second U-shaped resonator 2, a first rectangular branch 3, a second rectangular branch 6, a first rectangular ground 4, and a second rectangular ground 7 1. The feeder 5 of the flexible microstrip antenna and the polyimide material dielectric plate 8 are composed; the first U-shaped resonator 1 and the second U-shaped resonator 2 have the same shape and different sizes, and are made of U-shaped metal sheets as The U-shaped resonator of the main radiator; the size of the first U-shaped resonator 1 is smaller than the size of the second U-shaped resonator 2; the first U-shaped resonator 1 co-patched on the polyimide material dielectric plate 8 Located in the second U-shaped resonator 2, the bottom of the second U-shaped resonator is connected to the feeder 5 of the flexible micros...

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Abstract

A flexible dual-band planar microstrip antenna comprises a first U-shaped resonator (1), a second U-shaped resonator (2), a first rectangular branch (3), a second rectangular branch (6), a first rectangular ground (4), a second rectangular ground (7), a feeder (5) of the flexible microstrip antenna and a polyimide medium plate (8). A flexible polyimide material serves as the medium plate, so that the antenna has good folding and bending characteristics. Two U-shaped quarter-wave resonators of different sizes are used for coupling, so that ultra-wind band coverage of a first band from 1 GHz to 2.5GHz is achieved on the condition that the dual-band characteristic of the antenna is kept. The two rectangular branches are symmetrically distributed on the two sides of a U-shaped irradiator, and are used for achieving coverage of a second communication band of 5.5GHz. A coplanar waveguide feed method is adopted, so that the whole antenna is totally integrated on one side of the medium plate and is easy to adhere, and severe influences on performance of the antenna are not generated. The flexible dual-band planar microstrip antenna is suitable for various electronic products with microstrip antennas.

Description

[0001] technical field [0002] The invention relates to a flexible, foldable and bendable dual-band microstrip antenna, belonging to the technical field of microstrip antennas. Background technique [0003] At present, there are many types of antennas in the field of electronic devices. In addition to the common whip antennas, horn antennas and other larger antennas, the market share of microstrip antennas is also increasing due to their small size and easy integration. However, most ordinary microstrip antennas use PCB as the dielectric board, which cannot be folded and bent, which greatly limits its application. Especially in the pursuit of ultra-thin and ultra-light electronic market trends, the disadvantages of microstrip antennas in PCB board materials are becoming increasingly obvious. [0004] Regarding the frequency band characteristics, most of the existing dual-band antennas have an absolute bandwidth of about 0.5GHz. The narrower bandwidth will not only rest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q9/04H01Q13/08H01Q5/01H01Q5/10
Inventor 张晓燕喻易强刘志伟王国皓刘颖婷张月圆官雪辉
Owner EAST CHINA JIAOTONG UNIVERSITY
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