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Miniature broadband microstrip antenna

A microstrip antenna and microstrip feeder technology, which is applied in the direction of the antenna, the antenna grounding device, and the structural connection of the antenna grounding switch, can solve the problems such as the deterioration of the antenna radiation pattern, and achieve good pattern performance, reduced size, and widened antenna. The effect of bandwidth

Inactive Publication Date: 2017-06-09
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can broaden the antenna bandwidth, they may cause the deterioration of the antenna radiation pattern and cause some problems for feeding

Method used

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  • Miniature broadband microstrip antenna
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  • Miniature broadband microstrip antenna

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1: A microstrip antenna with an operating frequency band of 2.11 GHz to 3.87 GHz, the parameters of each structural size are as follows.

[0034] The dimensions of the rectangular patch 11 , the rectangular patch 12 and the rectangular patch 13 are the same, the length L1 = 28 mm, the width W1 = 13 mm, and the distance between adjacent rectangular patches S1 = 0.6 mm.

[0035] The dielectric constant ε of the upper dielectric substrate 2 1 =2.65, length L2=40.2, width W2=28mm, height H1=3mm, the dielectric constant ε of the lower dielectric substrate 4 2 =2.65, height H2=1mm.

[0036] Each row of metallized vias 21 is composed of 4 metal vias arranged at equal intervals, the distance between the centers of two adjacent metal vias is S2=7mm, the diameter of the metal vias is D=0.5mm, and the first metal via The distance A1 between the center of and the long side of the upper dielectric substrate 2 is 3.5 mm, and the distance A2 from the long side of the uppe...

Embodiment 2

[0044] Embodiment 2: A microstrip antenna with an operating frequency band of 19.7 GHz to 37.3 GHz, the parameters of each structural size are as follows.

[0045] The dimensions of the rectangular patch 11 , the rectangular patch 12 and the rectangular patch 13 are the same, the length L1 = 3 mm, the width W1 = 1.5 mm, and the distance between adjacent rectangular patches S1 = 0.1 mm.

[0046] The dielectric constant ε of the upper dielectric substrate 2 1 =2.65, length L2=4.7, width W2=3mm, height H1=0.338mm, the dielectric constant ε of the lower dielectric substrate 4 2 =3.66, height H2=0.254mm.

[0047] Each row of metallized vias 21 is composed of 4 metal vias arranged at equal intervals, the distance between the centers of two adjacent metal vias is S2=0.75mm, the diameter of the metal vias is D=0.2mm, and the first metal via The distance A1 between the center of the hole and the long side of the upper dielectric substrate 2 is 0.375 mm, and the distance A2 from the w...

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Abstract

The present invention discloses a miniature broadband microstrip antenna mainly for solving the problem in the prior art that the microstrip antenna is large is size and narrow in bandwidth. The antenna comprises a radiation array (1), an upper-layer dielectric substrate (2), a metal grounding plate (3), a lower-layer dielectric substrate (4), a microstrip feeder line (5) and a feed point (6). The radiation array is located on the upper surface of the upper-layer dielectric substrate and is connected with the metal grounding plate via a metal via hole (21) on the upper-layer dielectric substrate, the metal grounding plate is located between the two layers of dielectric substrates, the sizes of the radiation array, the dielectric substrates and the metal grounding plate are same, and the microstrip feeder line is located on the lower surface of the lower-layer dielectric substrate and is connected with the feed point. A rectangular slit (31) is etched on the metal grounding plate, by the rectangular slit, the electromagnetic energy is coupled to the radiation array from the microstrip feeder line, at the same time, a plurality of work modes are generated. The miniature broadband microstrip antenna of the present invention has the characteristic of being good in miniaturization, bandwidth and pattern characteristics, and can be used for the wireless communication and radar systems.

Description

technical field [0001] The invention belongs to the technical field of antennas, and further relates to a miniaturized broadband microstrip antenna, which can be used in wireless communication and radar systems. Background technique [0002] With the development of wireless communication systems, people's requirements for antenna functions are increasing day by day. Microstrip antennas are widely used in wireless communication and radar systems due to their advantages of small size, light weight, low profile, easy integration and low manufacturing cost. The microstrip antenna is an antenna formed by attaching a conductor sheet to a dielectric substrate with a conductor ground plate. It uses a microstrip line or a coaxial line to feed power, and excites a radio frequency electromagnetic field between the conductor patch and the ground plate, and passes through The gap between the perimeter of the patch and the ground plane radiates outward. [0003] The size of the traditio...

Claims

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Application Information

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IPC IPC(8): H01Q13/08H01Q1/36H01Q1/48H01Q1/50
CPCH01Q13/08H01Q1/36H01Q1/48H01Q1/50
Inventor 李龙易浩田顺成
Owner XIDIAN UNIV
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