Tri-Band Monopole Antenna

Abstract

The invention discloses a three-band monopole antenna, which comprises a substrate, a first floor, a second floor, an antenna feeder and a radiation patch located on the same surface of the substrate. flush, the other end is connected to the radiation patch, the first floor and the second floor are symmetrically distributed with respect to the antenna feeder and the lower edges of the first floor and the second floor are flush with the lower edge of the substrate, the first floor and the second floor are aligned with the There is a coupling gap between the antenna feeders; the radiation patch includes thick branches and thin branches. The thick branches are in a semi-circular structure, and the thin branches are in an open ring structure, and the opening of the ring is bent and folded several times to form a circular ring. It is an arc structure of concentric circles, the thick branches are embedded in the ring structure of the thin branches and the two ends are connected with the opening ends of the rings of the thin branches. The three-band monopole antenna has the characteristics of novel and compact structure, small volume, high space utilization rate, etc., and can be used in communication frequency bands such as GSM, WLAN, and WiMAX.

Description

technical field [0001] The invention relates to the technical field of antennas for wireless communication, in particular to a three-band monopole antenna fed by a coplanar waveguide. Background technique [0002] Global System of Mobile Communication (Global System of Mobile Communication, GSM) is currently the most widely used mobile phone standard. More than 1 billion people in more than 200 countries and regions around the world are using GSM phones, accounting for 70% of the global mobile phone market share. It is the second generation of cellular mobile communication technology. [0003] Wireless local area network (WirelessLocalAreaNetwork, WLAN) has been applied in industries such as medical care, manufacturing, and retailing because of its low price, flexible networking form, and support for high-speed data access. The reason why LAN technology is applied to wireless channels is possible because of its technological development including antennas, which can achieve...

AI Technical Summary

Problems solved by technology

[0005] In order to meet the large demand for wireless communication technology, radio frequency certification, wireless sensor network and Internet of Things integration applications, people are investing more and more energy and material resources on various multi-band antennas and even ultra-wideband antennas, but now in many In the design and research of frequency band antennas, there will be shortcomings such as large antenna volume, complex structure, inconvenient integration, high cost, and poor radiation performance.

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