Square double-notch ultra wide-band antenna with spiral resonators

Abstract

The present invention relates to a square double-notch ultra wide-band antenna with spiral resonators. The antenna comprises a dielectric substrate (1), a radiation element (2), spiral ring resonators (3), a coplanar waveguide signal feed strip line (4) and coplanar waveguide ground planes (5). The radiation element, the spiral ring resonators, the coplanar waveguide signal feed strip line and the coplanar waveguide ground planes are printed at the upper surface of the dielectric substrate; the radiation element is in square-shaped and located at the middle portion of the dielectric substrate; the coplanar waveguide signal feed strip line clings to the edge of the dielectric substrate and is connected with the radiation element; there are two pieces of coplanar waveguide ground planes which are respectively fixed at two sides of the coplanar waveguide signal feed strip line, and there is a gap between each coplanar waveguide ground plane and a microstrip line; and the two spiral ring resonators are located at two sides of the radiation element, and there is a certain gap between each spiral ring resonator and the radiation element. The two spiral ring resonators are arranged at two sides of the radiation element to realize the notch performance without degradation of the ultra wide-band antenna performance, and the square double-notch ultra wide-band antenna with the U-shaped groove is compact in structure and tiny in size, has reliability and simplicity, can regulate notch frequency, solves the problem of the same frequency interference of the ultra wide-band communication system and has a high practical value.

Description

technical field [0001] The invention relates to an antenna, in particular to a square double-notch ultra-wideband antenna with a helical resonator, which can realize notch characteristics without changing the performance of the ultra-wideband antenna. Background technique [0002] With the continuous development of wireless communication technology and the continuous improvement of hardware research and development conditions, in order to better realize the transmission of wireless signals, higher requirements are placed on the performance of antennas. In today's environment where wireless communication equipment is widely used , the importance of antennas is increasing day by day, and the research of various antenna technologies and the requirements of higher technical indicators make antenna technology usher in a major development opportunity. [0003] UWB communication covers a wide frequency band, and some frequency bands share frequency band resources with other wireles...

AI Technical Summary

Problems solved by technology

Designing a coplanar waveguide ultra-wideband antenna with notch characteristics is one of the important methods to solve such problems, and at the same time solve the problem that the current antenna structure and process are relatively complicated

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