Fractal ultra-wideband trap antenna with C band suppression function

A notch antenna and C-band technology, which is applied in the field of fractal ultra-wideband notch antenna, can solve the problems of not being able to accurately suppress frequency bands, very little research on band-stop performance, and blind antenna notch frequency bands, etc., and achieve simple structure and low cost. The effect of integrating and suppressing interference frequency bands

Active Publication Date: 2013-09-18
XIAMEN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The research on ultra-wideband antennas has achieved many results, and its technology is relatively mature, but there is still room for further improvement in the research on the band-stop performance and structure of ultra-wide-band antennas. In the C-ba

Method used

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  • Fractal ultra-wideband trap antenna with C band suppression function
  • Fractal ultra-wideband trap antenna with C band suppression function
  • Fractal ultra-wideband trap antenna with C band suppression function

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the embodiments and drawings.

[0027] See figure 1 with 2 , figure 1 Mark 1 in the middle is a dielectric substrate with a dielectric constant of 3.2 and a tangent loss of 0.002, with a length of 40mm, a width of 29mm, and a height of 1.5mm. The upper and lower sides of the dielectric substrate are covered with copper layers, and the upper surface is a T-shaped patch composed of a straight patch and two square patches, and the copper-clad layer 2 of the three-stage improved Sierpinski array structure patch, of which the T-shaped patch The horizontal and vertical widths are 0.8±0.2mm and 3.6±0.6mm, respectively. The horizontal and vertical lengths are 14±2mm and 8±1mm, respectively. The side length of the square patch with symmetrical two ends of the T-shaped patch is 0.8 ±0.2mm, the side length of the third-order improved Sierpinski array structure patch connected to the square patch is 12.5±2.5mm, ...

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Abstract

The invention discloses a fractal ultra-wideband trap antenna with a C band suppression function, and relates to an ultra-wideband antenna. The fractal ultra-wideband trap antenna is provided with a substrate and an SMA (Sub-Miniature-A) joint, wherein an upper surface conductor layer is coated on the upper surface of the substrate; a lower surface conductor layer is coated on the lower surface of the substrate; a planar dipole array which is arranged on the upper surface conductor layer is provided with a high-order improved Sierpinski array structure; a micro-strip line feed part which is arranged on the upper surface conductor layer is used for providing main radiation feed for the planar dipole array; an undercut gap which is arranged on the lower surface conductor layer produces electromagnetic coupling with the planar dipole array to increase the bandwidth; a band suppression gap which is arranged on the lower surface conductor layer is symmetric Z-shaped for intercepting electric wave of a specific frequency radiated by the upper surface conductor layer to form a trap band required by a user; and the SMA joint is connected with the upper surface conductor layer and the lower surface conductor layer on the substrate. The fractal ultra-wideband trap antenna has the advantages of moderate size, large impedance bandwidth, low return loss, high gain, capability of effectively suppressing C band and simple structure and can be used inan ultra-wideband communication system.

Description

Technical field [0001] The invention relates to an ultra-wideband antenna, in particular to a fractal ultra-wideband trap antenna with a C-band suppression function suitable for a C-band ultra-wideband communication system. Background technique [0002] As a transmission technology widely used in remote sensing and radar, in recent years, Ultra-wideband (UWB) technology has received great attention from the wireless communication industry. Ultra-wideband antennas have GHz-level bandwidth, and voice and data communications will likely bring a whole new way. The main advantages of UWB are extremely wide bandwidth, high transmission rate, good confidentiality, strong anti-interference ability, low energy consumption, etc. It has important theoretical value and broad application prospects in many fields such as military, communications, and radar systems. . It will become a technical means to solve the contradiction between the high-speed Internet access requirements of enterprises...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q21/00
Inventor 游佰强迟语寒黄天赠周建华
Owner XIAMEN UNIV
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