Plane ultra-wide band antenna

Abstract

This invention relates to plane super wide antenna, which comprises irradiation copper layer and feedback copper layer covered on positive and back planes of medium baseboard, which is characterized by the following: irradiation copper layer is composed of upper and down rows with upper unit composed of upper line edge and down ellipse edge and with down unit composed of left and right ellipse edges to form one ellipse edge and line edge; the feedback copper layer rectangle transmission band is relative to other side with upper edge relative to the center of irradiation units; the transmission band top end is in shape of fan with open angle symmetric.

Description

Technical field: [0001] The invention belongs to the technical field of ultra-wideband antennas, in particular to planar omnidirectional radiation antennas. Background technique: [0002] As a key component for radiating and receiving energy in an Ultra-Wide Band (UWB) wireless communication system, the antenna has performance requirements including a large impedance bandwidth, small size and easy conformability, and low processing cost. [0003] The International Institute of Electrical and Electronics Engineers "Antennas and Propagation" magazine (IEEE Transaction on Antennas and Propagation, No. 2, 1998, pages 294-295) once introduced the elliptical monopole antenna as a typical structure for obtaining a large impedance bandwidth, but due to this type In actual application, the antenna needs a large ground plane perpendicular to the radiation sheet, so that on the one hand, this type of antenna only has energy radiation in the upper half space containing the radiation uni...

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Problems solved by technology

[0003] The International Institute of Electrical and Electronics Engineers "Antennas and Propagation" magazine (IEEE Transaction on Antennas and Propagation, No. 2, 1998, pages 294-295) once introduced the elliptical monopole antenna as a typical structure for obtaining a large impedance bandwidth, but due to this type In actual application, the antenna needs a large ground plane perpendicular to the radiation sheet, so that on the one hand, this type of antenna only has energy radiation in the upper half space containing the radiation unit, and cannot obtain the radiation characteristics in the whole space. On the one hand, due to the fact that the three-dimensional structure limits the miniaturization of the antenna and cannot meet the requirements of conformal characteristics, it is difficult to be widely used in actual communication systems, especially small systems.

[0004] In order to solve the above problems, at the 2003 IEEE Antennas Propagation Society International Symposium, Schantz proposed a bottom-fed planar elliptical UWB antenna (Bottom fed planar elliptical UWB antennas), which has a planar structure feature and can realize edge feeding to reduce the influence of the feeding structure on the pattern, but its balun structure design is complex, and the working bandwidth cannot completely cover the 3.1GHz-10.6GHz frequency range required for ultra-wideband wireless communication, so in There are still deficiencies in the application

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