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Wide-band planar printed space fed antenna

A wide-band, planar technology, applied in the field of wide-band planar printed air-fed antennas, can solve the problems of antenna practical frequency band narrowing, inconvenient installation, low gain, etc., and achieve the effects of low cost, simple structure, and improved gain and aperture efficiency

Inactive Publication Date: 2011-06-08
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, printed antennas are more and more widely used. However, the printed antenna unit fed independently can only achieve a low gain, while the printed antenna composed of multiple printed antenna units can achieve high gain, although it can achieve high gain. However, a complex feed network is required, which will narrow the practical frequency band of the antenna
On the other hand, existing printed air-fed antennas such as reflectarray antennas and transmission array antennas must be equipped with feed sources. The distance from the feed source to the array surface is approximately equivalent to the diameter of the array surface, which constitutes a towering bracket and is not easy to install.
Therefore, it is difficult for the printed antennas in the prior art to simultaneously meet the performance requirements of broadband, high gain, and high aperture efficiency and the structural requirements of simplicity and low profile

Method used

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  • Wide-band planar printed space fed antenna
  • Wide-band planar printed space fed antenna
  • Wide-band planar printed space fed antenna

Examples

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no. 1 example

[0015] figure 1 It is a schematic diagram of the overall structure of the present invention, figure 2 It is a structural schematic diagram of the upper reflective cover plate of the embodiment of the present invention. Such as figure 1 , figure 2 The wide-band planar printed air-fed antenna of the present embodiment shown is composed of an upper reflector cover 1, a lower reflector base 2 and a feed source 3, and the upper reflector cover 1 is printed under it by an upper dielectric substrate 11 and 110 The surface is composed of mutually isolated upper metal patches 12, and the lower reflective base plate 2 is composed of a lower dielectric substrate 21 and a lower metal reflective plate 22 printed on its lower surface. The upper reflective cover plate 1 and the lower reflective base plate 2 are parallel to each other. The dielectric columns 4 are fixedly connected, and an air gap 5 with a thickness of 10.0 mm is provided between them. The feed source 3 is printed on the...

no. 2 example

[0018] see figure 1 . The wide-band planar printing air-feed antenna of this embodiment is made up of an upper reflection cover plate 1, a lower reflection base plate 2 and a feed source 3, and the upper reflection cover plate 1 is composed of an upper dielectric substrate 11 and 110 interconnections printed on its lower surface The isolated upper metal patch 12 is composed of the lower reflective base plate 2 composed of the lower dielectric substrate 21 and the lower metal reflective plate 22 printed on its lower surface. They are fixedly connected, and an air gap 5 with a thickness of 8.8mm is provided between the two, and the feed source 3 is printed on the upper surface of the lower dielectric substrate 21 . The upper dielectric substrate 11 is rectangular, its length, width and thickness are 70 mm, 63 mm and 1.6 mm in sequence, and its relative dielectric constant is 3.2. The shape, geometric dimension and relative permittivity of the lower dielectric substrate 32 are ...

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Abstract

Board band flat printed empty-feedback antenna is a low section board band flat printed empty-feedback antenna with board band, high plus, high caliber efficiency. The antenna includes upper reflecting cover, lower reflecting soleplate and feed source, the upper reflecting cover and the lower reflecting soleplate are parallel with each other and fixed via medium column. The upper reflecting coverincludes upper medium substrate and several upper metal sticking piece which are printed on the lower surface and separated with each other, the lower reflecting cover includes lower medium substrateand lower metal reflecting board which is printed on the lower surface, the feed source is printed on the lower surface of the lower medium substrate, at the same time, positive projection position of the feed source on the upper medium substrate is the center, the upper metal sticking piece are distributed around the center, in direction of the same radial, the area of the upper metal sticking piece which are in inner side is bigger than or equal with the area of the upper metal sticking piece which are in outer side, but they are not equal absolutely. The antenna possesses advantages that the structure is simple, the cost is low, and it is easy to produce in batch.

Description

technical field [0001] The invention relates to a planar printed antenna, in particular to a wide-band planar printed air-fed antenna. Background technique [0002] At present, printed antennas are more and more widely used. However, the printed antenna unit fed independently can only achieve a low gain, while the printed antenna composed of multiple printed antenna units can achieve high gain, although it can achieve high gain. However, a complex feed network is required, which will narrow the practical frequency band of the antenna. On the other hand, the existing printed air-fed antennas such as reflectarray antennas and transmission array antennas must be equipped with feeders. The distance from the feeder to the array is approximately equivalent to the diameter of the array, which constitutes a towering bracket and is not easy to install. Therefore, it is difficult for the printed antennas in the prior art to simultaneously meet the performance requirements of wide fre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q19/10
Inventor 章文勋符道临葛志晨
Owner SOUTHEAST UNIV
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