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Broadband bidirectional microstrip antenna

A microstrip antenna and broadband technology, applied in the field of broadband bidirectional microstrip antennas, achieves the effects of simple structure, high gain and low production cost

Inactive Publication Date: 2014-09-03
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ground plane of this structure requires an H-shaped opening, which requires a certain height from the physical ground during application.

Method used

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  • Broadband bidirectional microstrip antenna
  • Broadband bidirectional microstrip antenna
  • Broadband bidirectional microstrip antenna

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with embodiments and drawings.

[0024] See figure 1 In the present invention, a double-sided copper-clad dielectric substrate 1 is provided, and the front of the dielectric substrate is a parallelogram-shaped vibrator body 2 and an L-shaped groove 3.

[0025] The dielectric substrate 1 adopts a common F4BK-2 double-sided copper-clad circuit substrate with a length of 110.0mm±0.1mm, a width of 70.0mm±0.1mm, and a thickness of 3mm; the relative dielectric constant of the copper-clad dielectric substrate ε r Is 4.3. The parallelogram vibrator body has a side length of 87.9±0.1mm, a width of 41.8±0.1mm, and a staggered distance of 7.7±0.1mm. The distance between the two antisymmetric L-shaped grooves 3 is 6.8±0.1mm, the longitudinal arm length of the L-shaped groove is 34.5±0.1mm, the longitudinal arm width is 2.7±0.1mm, the transverse arm length is 4.8±0.1mm, the transverse arm width It is 4.1±0.1mm.

[0026]...

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Abstract

The invention discloses a broadband bidirectional microstrip antenna, and relates to a microstrip antenna. The broadband bidirectional microstrip antenna is provided with a dielectric substrate, wherein two faces of the dielectric substrate are coated with copper, and a parallelogram-shaped oscillator with two L-shaped grooves are printed on the front side of the substrate, wherein the L-shaped grooves are in inverse symmetry relative to the central position; and the back side of the substrate is fully coated with copper. On the front side, the upper and lower sides of the parallelogram are respectively parallel to the upper and lower sides of the substrate, and the parallelogram is centrally placed on the substrate. The two L-shaped grooves are oppositely placed in inverse symmetry relative to the central point and respectively etched to the upper and lower sides of the parallelogram, one arm of each L-shaped groove is vertical to the upper and lower sides of the parallelogram while the other arm is parallel to the upper and lower sides of the parallelogram. The back side of the substrate is completely coated with copper so as to be used as a ground plane. A through hole is drilled from the central position of the front side parallelogram to the back side, and a 50ohm coaxial line connector is used for feeding the parallelogram-shaped oscillator from the back side via the through hole. The broadband bidirectional microstrip antenna is bidirectional, wide in frequency band, low in profile, high in gain, high in radiation efficiency and simple in structure.

Description

Technical field [0001] The invention relates to a microstrip antenna, in particular to a DCS1800 communication protocol that can be used in a mobile communication repeater, and a broadband bidirectional microstrip antenna with slots in a parallelogram vibrator body. Background technique [0002] A repeater is a device commonly used in current mobile communication systems to increase the coverage and communication capacity of mobile communication. Repeaters are usually used in some special application scenarios, such as corridors, narrow streets, tunnels, and highways. In these occasions, repeater antennas are generally required to have: two-way radiation, broadband, and high gain characteristics. At the same time, in order to further reduce the size of the antenna device, the antenna is required to have low profile characteristics. [0003] At present, some researchers have done research on antennas with bidirectional radiation characteristics, and have proposed a variety of anten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38
Inventor 李伟文陈杰良游佰强周建华李海雄陈慕雄
Owner XIAMEN UNIV
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