A broadband high gain wifi omnidirectional antenna

Abstract

The invention discloses a wide-band and high-gain WiFi (Wireless Fidelity) omnidirectional antenna, and mainly solves the problems of narrow band width, low gain, complex structure and poor omnidirectivity of the existing WiFi antennae. According to the wide-band and high-gain WiFi omnidirectional antenna disclosed by the invention, a PCB (Printed Circuit Board) substrate is designed that a copper foil is coated on each of an upper surface and a lower surface of the substrate; namely, copper foils which are provided with completely the same wiring are arranged on the upper surface and the lower surface of the substrate as irradiating bodies, and are provided with separate raised spots; a progressive matching segment is present between a feeding point and a first arm radiation unit; radiation units on the upper surface and the lower surface of the substrate are respectively connected with the raised spots by means of metallized through holes; and a loading unit is arranged at the top end of the antenna. According to the wide-band and high-gain WiFi omnidirectional antenna disclosed by the invention, the band width of the antenna can be widened effectively, without increasing size of the antenna, gain is increased and an deflection angle of a directional diagram is inhibited, a small-size WiFi antenna with high gain, wide frequency band, low cost and excellent omnidirectivity is realized on a F4B substrate; and the wide-band and high-gain WiFi omnidirectional antenna has the advantages of simple feeding manner, compact structure, easiness for processing and a wider application scope, and can be used for a 5G Hz WiFi frequency band communication system.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a WiFi antenna, in particular to a broadband, high-gain and omnidirectional WiFi antenna, which is a high-gain omnidirectional small antenna applied to the 5GHz frequency band. Background technique [0002] With the development of wireless communication technology, the popularity of using WiFi network is getting higher and higher, and with the rapid development and widespread popularization of smart phones, tablet computers and various smart devices, data transmission and exchange can be realized through wireless WiFi network Such as surfing the Internet, transmitting screens, copying files, etc. have become the basic functional configurations of these smart devices. Compared with wired methods, wireless WiFi has the advantages of convenience, speed and mobility. With the continuous improvement of transmission rate, wireless WiFi has become the standar...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of narrow bandwidth, small gain and uneven signal strength at the same distance and different azimuth angles in the prior art, the present invention provides a wide-band, high-gain, omnidirectional WiFi antenna, which is cheaper than traditional antennas Inexpensive and capable of higher gain, wider impedance bandwidth, smaller size and better omnidirectional performance

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