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A dual-band circularly polarized planar printed antenna

A printed antenna and circular polarization technology, which is applied in the field of mobile communication systems and wireless communication, can solve the problems of not being able to cover the wireless communication frequency band, narrow impedance bandwidth and axial ratio bandwidth, and large size, and achieve simple structure, impedance and circular polarity The effect of widening the bandwidth and widening the bandwidth

Inactive Publication Date: 2020-03-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing dual-band circularly polarized planar printed antenna has problems such as large size, narrow impedance bandwidth and axial ratio bandwidth, and cannot cover more wireless communication frequency bands, and it is difficult to meet the requirements of thinner and thinner modern communication equipment and functional diversification.

Method used

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  • A dual-band circularly polarized planar printed antenna
  • A dual-band circularly polarized planar printed antenna
  • A dual-band circularly polarized planar printed antenna

Examples

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Effect test

Embodiment

[0038] The effect of the present invention can be further illustrated by the test of the above-mentioned specific dual-band circularly polarized planar printed antenna:

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Abstract

The invention discloses a dual-band circularly polarized planar printed antenna. An improved L-shaped microstrip structure, an inverted L-shaped loading pile, and an impedance-matched input feeder are printed on the upper surface of a dielectric substrate, and an inverted loaded antenna is printed on the lower surface. L-shaped metal strips and metal ground with L-shaped slots and rectangular slots, through a certain layout, realize dual-band circular polarization, and its impedance bandwidth and circular polarization bandwidth can cover WLAN (2.4 / 5.2 / 5.8-GHz) frequency bands at the same time , Wi‑Fi (2.4 / 5.5‑GHz) frequency band, Bluetooth (2.5‑GHz) frequency band, and WiMAX (2.5 / 5.5‑GHz) frequency band.

Description

technical field [0001] The invention belongs to the field of mobile communication systems and wireless communication technologies, and more specifically relates to a dual-band circularly polarized planar printed antenna. Background technique [0002] In recent years, with the rapid increase of data transmission volume and the diversification of wireless communication services, wireless communication systems working in different frequency bands are required. [0003] With the Global System for Mobile Communications (GSM), Global Positioning System (GPS), Digital Communications System (DCS), Personal Communications System (PCS), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), Wireless Local Area Network (WLAN) , Bluetooth (Bluetooth), Wireless Fidelity (Wi-Fi) and Worldwide Interoperability for Microwave Access (WiMAX) and other wireless communication standards, as well as the development needs of mobile terminal integration and miniaturization, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q5/50H01Q15/24H01Q5/10H01Q5/20H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50H01Q5/10H01Q5/20H01Q5/50H01Q15/24
Inventor 李倩魏彦玉丁冲吴刚雄雷霞黄民智徐进路志刚王战亮宫玉彬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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