Method for designing Hilbert fractal ultrahigh frequency antenna

A design method and fractal antenna technology, applied in the direction of calculation, radiation element structure, special data processing applications, etc., can solve the problems of ignoring signals and not being able to obtain the collection effect, and achieve the effect of improving the collection effect

Active Publication Date: 2014-05-14
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

But the existing Hilbert fractal antennas all have obvious design flaws: the lengths of the parallel double wires, short-circuit terminals and additional wires of the Hilbert fra

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  • Method for designing Hilbert fractal ultrahigh frequency antenna
  • Method for designing Hilbert fractal ultrahigh frequency antenna
  • Method for designing Hilbert fractal ultrahigh frequency antenna

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Embodiment Construction

[0035] Taking the design of the fourth-order Hilbert fractal antenna as an example, the implementation method is mainly to optimize related parameters by using the optimization function of HFSS software. Set the lengths of the three antenna wire segments as M, N, and A respectively, and set the wire width as W, the thickness of the dielectric substrate as d, the material of the dielectric substrate is FR4, and the wire layer is copper, select image 3 , Figure 4 The middle port1 point is the feed point to achieve the effect of impedance matching. The HFSS simulation model is established according to the above parameter settings. Through the optimized design module of HFSS, for the length M of parallel wires in the range of (2mm, 8mm), the length N of short-circuit terminals, the length A of additional wire segments, and the width W of wires in the range of (1mm, 3mm), (0.6mm, 2mm) Optimum design of the dielectric thickness d within the range, the optimized results obtained,...

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Abstract

The invention discloses a method for designing a Hilbert fractal ultrahigh frequency antenna. The method includes the steps of arranging a grounding board and a Hilbert fractal wire layer on the two sides of a dielectric substrate respectively, enabling the lengths of parallel dual wires, short circuit terminals and additional wire sections to serve as parameters when the sizes of all parts of wire sections inside the wire layer are determined, meanwhile, considering the wire width, the dielectric thickness and the dielectric constant to build calculation equations of the resonance frequency and the standing-wave ratio of the antenna, carrying out simulating optimization on the parameters within the available ranges of the resonance frequency and the standing-wave ratio to obtain optimal values of the lengths of the three kinds of wire sections and the widths of the wire sections, and finally manufacturing the Hilbert fractal ultrahigh frequency antenna according to the simulation results. According to the method, the Hilbert fractal ultrahigh frequency antenna is optimized by changing the lengths of the parallel dual wires, the short circuit terminals and the additional wire sections, and the collecting effect of the antenna on partial discharge ultrahigh frequency signals of electrical equipment is greatly improved.

Description

technical field [0001] The invention relates to a design and optimization method of a fourth-order Hilbert fractal antenna for collecting partial discharge ultra-high frequency signals of power equipment, belonging to the technical field of antennas. Background technique [0002] With the rapid development of power system, people pay more and more attention to the safe and stable operation of power equipment. In recent years, power equipment accidents have occurred frequently, and partial discharge is a general feature in the early stage of accidents. Therefore, it is of great significance to use the partial discharge on-line monitoring device to monitor the partial discharge signal of the power equipment in real time, so that the equipment maintenance personnel can understand the operation of the equipment in time, discover and eliminate the potential defects of the power equipment in time, and it is of great significance to avoid the occurrence of power equipment accidents...

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Application Information

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IPC IPC(8): G06F17/50H01Q1/38
Inventor 王永强马超律方成
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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