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Method for adjusting performance of electrically-small size bending line microstrip antenna

A technology of microstrip antenna and electrically small size, applied in the field of electronics, can solve the problems of limited range of performance parameters, limited space for adjustment, limited range of antenna performance, etc., and achieve the effect of good antenna performance indicators

Inactive Publication Date: 2015-04-29
FUJIAN UNIV OF TECH
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Problems solved by technology

[0012] For an electrically small-sized microstrip antenna, due to the limited space for adjustment, the range of size parameter changes is small, and the range of performance parameters to be adjusted is also limited accordingly.
Therefore, the disadvantage of the prior art is that the scope for adjusting the performance of the antenna is limited

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  • Method for adjusting performance of electrically-small size bending line microstrip antenna

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Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1 ,Such as figure 1 As shown, a method for adjusting the performance of an electrically small-sized meander line microstrip antenna includes the following steps:

[0033] Step 1) Determine the grounding area of ​​the electrically small meander line microstrip antenna as S, and the boundary conditions are:

[0034] e n ×E 1 = 0, on S;

[0035] e n ×H 1 =J S , on S;

[0036] Among them, the electric field in the dielectric substrate is E1, the magnetic field is H1, and the surface current density on the ground plate is Js, e n is the unit vector normal to the interface.

[0037] Step 2) Insert a metal sheet inside the dielectric substrate. The area of ​​the metal sheet is S1. After adjustment, the bo...

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Abstract

The invention discloses a method for adjusting performance of an electrically-small size bending line microstrip antenna. The method comprises the following steps that firstly, the area of an earth plate of the electrically-small size bending line microstrip antenna is determined as S; secondly, a metal sheet is inserted in a dielectric substrate, and the area of the metal sheet is S1; thirdly, the change range of the area S1 of the metal sheet is determined through the change trend of the performance of the antenna; fourthly, the optimal area S1 of the metal sheet is determined through an optimization method. The new method for adjusting the parameter of the performance of the antenna is provided. Antenna performance indexes better than the index of a bending line microstrip antenna in the prior art can be obtained.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a method for adjusting the performance of an electrically small meander line microstrip antenna. Background technique [0002] Electrically small size: An object whose linear dimension is much smaller than the wavelength. [0003] Microstrip antenna: On a thin dielectric substrate, one side is coated with a thin metal layer as a grounding plate, and the other side is made of a metal patch with a certain shape by photolithography, and the patch is fed by a microstrip line or a coaxial probe. Antenna made of electricity. [0004] For electrically small-sized microstrip antennas, miniaturized antenna technology is usually used in order to reduce the size. The miniaturization techniques of microstrip antennas are as follows: [0005] (1) Improve the dielectric constant of the dielectric substrate; [0006] (2) meandering flow technology; [0007] (3) Short-circuit loading te...

Claims

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Application Information

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IPC IPC(8): H01Q1/00H01Q9/00
Inventor 胡驰
Owner FUJIAN UNIV OF TECH
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