A Design Method of Coaxial Feed Antenna

A technology of coaxial feeding and design method, which is applied in the direction of design optimization/simulation, antenna grounding switch structure connection, radiation element structure, etc., can solve the problem of high matching between resonant frequency and center frequency, heavy workload, waste of time and money, etc. question

Active Publication Date: 2020-02-21
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a design method for a coaxial feed antenna, which achieves optimal performance through numerical calculation and parameter fine-tuning, and solves the shortcomings of high matching workload between resonant frequency and center frequency, waste of time and funds, etc.

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  • A Design Method of Coaxial Feed Antenna
  • A Design Method of Coaxial Feed Antenna
  • A Design Method of Coaxial Feed Antenna

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[0041] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0042] Aiming at the problems in the prior art that the return loss is relatively large and the resonance frequency cannot reach the vicinity of the center frequency, the present invention proposes a swarm intelligence algorithm, which effectively combines the particle swarm algorithm and the ant colony algorithm to achieve good impedance Match performance.

[0043] Will pre-set ε r , h, freq are used as the input of the algorithm, through the microstrip antenna model combined with the swarm intelligence algorithm combined with the particle swarm algorithm and the ant colony algorithm, repeated iterations, and finally after a certain number of iterations, the fitness tends to 0, and the impedance matching is good at the same time, the output microstrip ...

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Abstract

The invention relates to a design method for a coaxial feed antenna. The design method comprises the following steps of establishing a coaxial feed mathematical optimization model: obtaining a dielectric constant and height of a dielectric layer according to the material of a manufactured antenna, setting center frequency, and establishing a fitness function through a calculation formula of antenna dimensions; a particle swarm algorithm optimization step: performing optimization calculation by combination of a particle swarm algorithm and an ant colony algorithm, setting the number and iteration numbers of the particle swarms and inputting for performing optimization calculation to obtain length, width and feed position of each final particle; and a micro antenna design step: performing microstrip antenna design in HFSS software according to the length, width and feed position of each final particle. Therefore, automatic design of the antenna structural parameters is realized, and the resonant frequency can be highly matched with the center frequency.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a material property testing device in antenna design, and in particular to a design method of a coaxial feeding antenna. Background technique [0002] As a new type of optimization algorithm evolved from bionics, swarm intelligence algorithm has been widely used in more and more engineering fields. Swarm intelligence is mainly reflected in the cooperative behavior of social creatures. After observing and studying the laws, researchers summarize the principles of its realization and use them to design algorithms for solving certain problems. A very popular swarm intelligence algorithm in computing. Due to its convenience and practicality, swarm intelligence algorithm has been widely developed and applied in recent years, among which particle swarm algorithm and ant colony algorithm are the most widely used. [0003] The present invention takes the design of the microstrip a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q1/38G06F30/20G06F111/10
CPCG06F30/20H01Q1/38H01Q1/50
Inventor 陈月云简荣灵
Owner UNIV OF SCI & TECH BEIJING
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