Ultra-wideband half-folded antipodal slot antenna and method of making the same

A slot antenna and half-folding technology, which is applied in the microwave field, can solve the problems of poor cross-polarization characteristics of ultra-wideband slot antennas, and achieve the effects of good cross-polarization characteristics, simple structure and simple manufacturing process.

Inactive Publication Date: 2012-02-22
淮安市世界之窗物联网科技产业园有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor cross-polarization characteristics of ultra-wideband slot antennas, and propose an ultra-wideband half-folded antipodal slot antenna with simple and novel structure, which is easy to manufacture and realize.

Method used

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  • Ultra-wideband half-folded antipodal slot antenna and method of making the same
  • Ultra-wideband half-folded antipodal slot antenna and method of making the same
  • Ultra-wideband half-folded antipodal slot antenna and method of making the same

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Embodiment Construction

[0013] control attached figure 1 , its structure is that the semi-folded antipodal gap is divided into two parts, the top sub-slot 1 and the bottom sub-slot 2, which are respectively fabricated on the front and bottom of the dielectric board, and the two pass through two rows of metallized vias (11-12 per row) ) connected into a complete half-folded antipodal gap;

[0014] In the half-folded antipodal gap, the angle 7 between the gradient line and the horizontal line is controlled at about 40-50 degrees; the characteristic impedance of the microstrip feeder is 50 ohms, and the microstrip feeder is connected to the rectangular patch branch through a three-section ladder impedance transformation structure , the microstrip feeder 8 , the rectangular patch tuning stub 4 and the top layer sub-slot 2 are located on the same side of the dielectric substrate 1 .

[0015] The manufacturing method of the ultra-wideband half-folded antipodal slot antenna is to use the printed circuit bo...

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Abstract

The invention relates to an ultra-wideband half-folded antipodal slot antenna and a manufacturing method thereof. The invention is characterized in that, by using a printed circuit board process, gradient-shaped top layer sub-slots and bottom layer sub-slots are respectively designed on the front and bottom surfaces of the dielectric substrate, and the top sub-slot and the bottom sub-slot are respectively designed. The bottom sub-slots are located on both sides of the dielectric substrate, and the top and bottom sub-slots are connected by metallized vias to form a complete half-folded antipodal slot; microstrip feeders and rectangular patch tuning branches pass through steps The impedance transformation structures 5 are connected to form a broadband feeding structure of the antenna, so as to realize effective broadband impedance matching characteristics. The advantages of the invention are as follows: the antenna has good cross-polarization characteristics and can be used as a polarization diversity unit of a multi-antenna system; the structure is simple, no additional feeding components are required; the manufacturing process is simple; the integration is convenient; and the cost is low.

Description

technical field [0001] The invention relates to a half-folded antipodal slot antenna with ultra-wideband working characteristics and a manufacturing method thereof. The antenna has good radiation characteristics and a simple structure, can be used as a small ultra-wideband (UWB) communication equipment transceiver antenna or a mobile communication indoor distribution antenna, and belongs to the field of microwave technology. Background technique [0002] Due to its high data rate, simple system structure, and low cost, ultra-wideband communication technology has become a hot spot in the research of wireless communication technology. In the design of ultra-wideband communication system, one of the important tasks is the design and realization of ultra-wideband small antenna. The performance of the antenna will directly affect the performance of the whole machine. An ultra-wideband antenna refers to an antenna with wide-band operating characteristics. Generally speaking, an a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/00H01Q13/08H01Q13/10H01Q1/38
Inventor 吕文俊朱洪波
Owner 淮安市世界之窗物联网科技产业园有限公司
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