Multi-resistance band and ultra-broadband antenna based on split ring resonancer and mount erosion aperture

Abstract

The present invention relates to a multi-stopband ultra-wideband antenna based on split ring resonators and patch etching gaps, comprising a disk antenna and a split ring resonator coupling micro-strip structure. A lower surface metal clad layer (2) is the ground of a feeder part. An upper surface metal clad layer (3) comprises an antenna radiation unit (4), a micro-strip feeder (5), a trapezoidal impedance transformation line (6) and a split ring resonator (8), wherein, the antenna radiation unit (4) adopts the disk antenna on which split ring shape gaps (7) with the same circle center are arranged; the back of the disk antenna has no metal area; the micro-strip feeder (5) adopts a micro-strip line form; the micro-strip feeder (5) and the antenna radiation unit (4) are in impedance matching connection through the trapezoidal impedance transformation line (6); the split ring resonator (8) comprises two pairs of resonators, namely a first resonator (9) and a second resonator (10), which are symmetrically distributed on two sides of the feeder; each resonator is formed by an inner split ring and an outer split ring, and the opening direction of the inner ring is far away from the feeder, while he opening direction of the outer ring is close to the feeder.

Description

technical field [0001] The invention is a comprehensive design technology of a multi-stop-band ultra-wideband (Ultra-Wideband, UWB) antenna capable of resisting multi-frequency signal interference. Background technique [0002] Ultra-wideband communication system has many advantages such as low complexity, low cost, anti-multipath and anti-aliasing, and adapts to the development requirements of today's high-speed broadband communication system. However, with the development of various communication systems, frequency bands overlap between UWB communication systems and other same-frequency communication systems, so the development of UWB systems has to face the problem of mutual interference between systems. Taking an ultra-wideband system with a working frequency band of 2GHz-10GHz as an example, the interfering frequency signals include: 2.4GHz / 5.8GHz signals of WLAN, and 3.5GHz signals of Fixed Broadband Wireless Access (FBWA). The existence of interference signals greatl...

AI Technical Summary

Problems solved by technology

Most of the existing stopband antennas have a single stopband, which cannot suppress signals at multiple frequency points; or, the working bandwidth of antennas with two stopbands is affected and reduced, which does not meet the ultra-wideband characteristics

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