Double-helix slot antenna for radio communication

Abstract

The invention discloses a double-helix slot antenna for radio communication, and the antenna comprises a one-side copper-coated dielectric plate and a slot antenna etched on the one-side copper-coateddielectric plate. The slot antenna includes a coplanar waveguide feed line and two split ring resonators loaded with double-helix structures. The coplanar waveguide feed line consists of two signal transmission gaps, a central conduction band, and a metal ground. The two split ring resonators loaded with double-helix structures are symmetrically disposed at two sides of the coplanar waveguide feed line, and are respectively connected with the signal transmission gaps through trough line segments. Each split ring resonator loaded with the double-helix structure consists of a U-shaped line, a fifth trough line, and a double-helix line. Each double-helix line consists of a spiral structure A and a spiral structure B. The spiral structures A and the spiral structures B are respectively connected with the corresponding U-shaped lines, and openings are disposed between the fifth trough lines and the U-shaped lines. The antenna is compact, is simple in structure, is low in profile, is convenient to process, is low in cost, and is easy to integrate with other microwave circuits.

Description

technical field [0001] The invention relates to the technical field of microwave communication, in particular to a coplanar waveguide-fed double helix slot antenna applied to wireless communication. Background technique [0002] In 1887, after the German scientist Hertz verified the existence of electromagnetic waves through experiments, human beings entered the era of developing and using electromagnetic waves. Wireless communication is developing rapidly in social work and life, and wireless application equipment is also increasing day by day, and antenna, as an indispensable part of wireless communication system, has also received more and more attention from researchers. In the 21st century, with the continuous advancement of wireless technology, indoor wireless networks and global microwave interconnection access are gradually popularized, and antennas working on WLAN (wireless local area network) and WIMAX (global microwave interconnection access) are increasingly popu...

AI Technical Summary

Problems solved by technology

However, the antennas currently used in indoor WLAN and WIMAX either have a large size and a narrow bandwidth with a reflection coefficient of 10dB, or they do not belong to a planar structure, which increases the difficulty of integration and processing, and is not easy to promote and use.

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