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Three Soil-shaped and Hi-shaped Microstrip Antennas

A technology of microstrip antenna and Xizi, which is applied to the antenna, the device that enables the antenna to work in different bands at the same time, the structural form of the radiation element, etc., can solve the problems of relatively narrow frequency band and narrow frequency band, and achieve light weight and good radiation characteristics , small size effect

Inactive Publication Date: 2015-12-30
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the microstrip antenna is mainly a resonant antenna with a relatively narrow frequency band, and the conventionally designed bandwidth is only 2% to 5%; and as its operating frequency decreases, the bandwidth gradually decreases, and the L-band microstrip antenna presents a Features of a narrower frequency band

Method used

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  • Three Soil-shaped and Hi-shaped Microstrip Antennas
  • Three Soil-shaped and Hi-shaped Microstrip Antennas
  • Three Soil-shaped and Hi-shaped Microstrip Antennas

Examples

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Embodiment 1

[0018] A glass fiber epoxy resin material with a dielectric constant of 4.4 is selected to make a microstrip substrate with a thickness of 1.6 mm. Both the length and the width of the substrate were 70 mm. The size parameters of the left earth-shaped annular patch and the right earth-shaped annular patch are the same, with a total length of 30mm, a total height of 30mm, and a width of 1.5mm. The total length of the lower earth-shaped annular patch is 40mm, the total height is 30mm, and the width is 1.5mm. The impedance-matched input transmission line has a length of 10mm and a width of 6mm. The length and width of the rectangular metal ground plate are both 70mm. The size parameters of the upper left rectangular slot and the upper right rectangular slot are the same, the length is 9.5mm, and the width is 6.5mm; the total length of the inverted T-shaped slot is 28mm, the total height is 26mm, and the width is 6.5mm. The size parameters of the left middle rectangular slot and...

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Abstract

The invention discloses a microstrip antenna in the shape of three soils and the shape of a happy character. It includes a base plate, a left-side earth-shaped ring patch, a right-side earth-shaped ring patch, a lower side earth-shaped ring patch, an impedance matching input transmission line, and a rectangular metal grounding plate; the upper surface of the substrate is provided with a left-side earth-shaped ring patch Slice, earth-shaped ring patch on the right side, earth-shaped ring patch on the lower side, impedance matching input transmission line, a rectangular metal grounding plate is provided on the lower surface of the substrate; a rectangular metal grounding plate is provided with a rectangular slot on the upper left and an inverted T-shaped Slot, upper right rectangular slot, left middle rectangular slot, right middle rectangular slot, hi prefix slot, left middle lower rectangular slot, right middle lower rectangular slot, left lower rectangular slot, right lower rectangular slot , a cross-shaped groove, and one end of the lower soil character ring patch is respectively connected with the left soil character ring patch and the right side soil character ring patch. The invention has the advantages of good radiation characteristics, dual frequency bands, simple structure, small size, light weight, convenient manufacture and easy integration.

Description

technical field [0001] The invention relates to an antenna, in particular to a microstrip antenna in the shape of three soils and the shape of a letterhead. Background technique [0002] Due to the advantages of small size, light weight, thin profile, conformal shape with aircraft, simple manufacturing process, low cost, and easy integration with active devices and circuits into a single module, microstrip antennas have been widely valued by all walks of life. However, the microstrip antenna is mainly a resonant antenna with a relatively narrow frequency band, and the conventionally designed bandwidth is only 2% to 5%; and as its operating frequency decreases, the bandwidth gradually decreases, and the L-band microstrip antenna presents a characteristics of a narrower frequency band. Therefore, it is of great significance to study the factors affecting the bandwidth of microstrip antennas and how to widen the bandwidth of microstrip antennas to expand the scope of use of mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q13/08H01Q5/00H01Q5/20H01Q5/307
Inventor 李九生
Owner CHINA JILIANG UNIV