Miniature dual-band-stop ultra-wide band micro-strip antenna

Abstract

The invention discloses a miniature dual-band-stop ultra-wide band micro-strip antenna, and relates to the field of ultra-wide band wireless communication. The miniature dual-band-stop ultra-wide band micro-strip antenna comprises a dielectric substrate; a feeder line which is arranged on the dielectric substrate and used for receiving electromagnetic waves; a radiating element which is connected with the feeder line and used for radiating the electromagnetic waves; two earth plates which are arranged on the dielectric substrate and are symmetrically arranged on the left side of the feeder line and the right side of the feeder line; two C-shaped grooves formed at the upper end of the radiating element and with different sizes; outer convex gradually-changing grooves formed at the lower end of the radiating element; and inner concave gradually-changing grooves which are matched with the outer convex gradually-changing grooves and arranged on the two earth plate respectively. The metal earth plates and the metal radiating element are designed into double gradually-changing grooves, so that a standing-wave ratio bandwidth reaches 2GHz-16GHz and 156% of a relative standing-wave ratio bandwidth is achieved. The two C-shaped grooves in the metal radiating element are 3.0 GHz-3.8GHz of a quarter of a wavelength and 5.0GHz-5.8GHz of a quarter of the wavelength, so that the notch function and the double-band-stop design of the antenna in two frequency ranges are achieved.

Description

technical field [0001] The invention relates to the technical field of ultra-wideband wireless communication, in particular to a miniaturized dual-band-stop ultra-wideband microstrip antenna. Background technique [0002] With the development of society and the advancement of science and technology, the application frequency band of radio has also been continuously expanded, thereby promoting the emergence of ultra-wideband electromagnetics. UWB technology has many advantages that narrowband systems cannot match, such as: high data rate, low system cost and anti-multipath effect, etc. The unique advantages make UWB system one of the most competitive and promising technologies. [0003] UWB antennas have a wide range of applications. It can be used for GPRS global positioning, resource and environment detection, satellite communication, radar, etc. In recent years, there have been many studies on short-distance wireless communication. The advantages of high data rate can be ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing U-shaped slot ultra-broadband microstrip antenna's narrow frequency bandwidth and relatively narrow bandwidth, and the lack of dual-band-stop design for interference system signals in the two frequency bands of 3.0GHz-3.8GHz and 5.0GHz-5.8GHz Problem, the present invention provides a kind of miniaturized dual-band stop ultra-wideband microstrip antenna

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