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Full frequency band ultra wide band antenna circuit model

An ultra-wideband antenna and circuit model technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as unreasonable initial value of iteration, non-optimal extraction results, and non-convergence of iterative fitting.

Active Publication Date: 2018-04-10
SOUTHEAST UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the method of iterative fitting still faces the inevitable convergence problem
Due to the difference in the initial value of the iteration, the convergence value of the iterative fitting method may only be a local minimum value instead of the global minimum value, which leads to a non-optimal result of the extraction result; or, due to the unreasonable initial value of the iteration, the iterative fitting method will There is no convergence

Method used

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  • Full frequency band ultra wide band antenna circuit model
  • Full frequency band ultra wide band antenna circuit model
  • Full frequency band ultra wide band antenna circuit model

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Embodiment Construction

[0091] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0092] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein...

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Abstract

The invention discloses a full frequency band ultra wide band antenna circuit model. The full frequency band ultra wide band antenna circuit model includes N A type basic model units and M B type basic model units, which are connected in series. The total number K (K=N+M) of the basic model units is equal to the number of frequency domain impacts of an antenna radio frequency impedance parameter real part in a test frequency band; the number N of the A type basic model units is equal to the number of capacitive type polynomials in a polynomial acquired from vector fitting of Z parameters of all the frequency bands after the frequency band is divided; and the number M of the B type basic model units is equal to the number of inductance type polynomials in a polynomial acquired from vector fitting of a Z parameter (radio frequency impedance parameter) real part of all the frequency bands after the frequency band is divided. The full frequency band ultra wide band antenna circuit model can achieve high-precision simulation of antenna input impedance characteristics in a full frequency band ultra wide band condition. The invention also discloses a method for using measurement radio frequency impedance parameter to extract component parameter values of the full frequency band ultra wide band antenna model on the basis of the vector fitting method.

Description

technical field [0001] The invention relates to an antenna equivalent model and a parameter extraction method, in particular to a full-band ultra-wideband antenna equivalent circuit model and a parameter extraction method. Background technique [0002] Antenna is an important component for receiving and transmitting radio frequency signals in a wireless communication system, and has a wide range of applications in various fields. In the collaborative design of the antenna and circuit system, according to the principle of impedance matching, the input impedance of the antenna is often adjusted to 50 ohms to match other circuit parts of the transmitter and receiver. For narrowband antennas, this method has good feasibility and can meet higher precision requirements. However, in the application of full-band ultra-wideband antennas, since the input impedance of the antenna cannot be matched to 50 ohms over a wide frequency band, the above method is not feasible for the collabor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 唐路王瀚升何伟梁张明辉曹子建
Owner SOUTHEAST UNIV
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