Five-notch ultra wide band antenna

An ultra-wideband antenna and notch technology, which is applied in the direction of slot antenna, antenna coupling, antenna grounding device, etc., can solve the problems that have not been reported publicly, and achieve the effects of easy integration, reduced coupling, and good notch characteristics

Inactive Publication Date: 2013-05-08
YUNNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the reported multi-notch antennas, the notches usually contain no more than three
[0004] The five-notch ultra-broadband antenna designed by the present invention, through document retrieval, does not see the public report identical with the present invention

Method used

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  • Five-notch ultra wide band antenna
  • Five-notch ultra wide band antenna
  • Five-notch ultra wide band antenna

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Embodiment Construction

[0021] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] The present invention includes an FR4 type dielectric board 1, a radiation unit 2 printed on the same surface of the dielectric board, L-shaped open-circuit branches 5 and 6, a grounding unit 11, and a feed unit 10, wherein:

[0023] a. The radiation unit 2 is a circular metal patch, on which the large C-shaped slot 3, the C-shaped slot 7 and the small C-shaped slot 4 nested in the C-shaped slot 3 are respectively etched, and the C-shaped slot is not closed ring;

[0024] b. Open circuit branches 5 and 6 are L-shaped metal sheets;

[0025] c. The grounding unit 11 is a trapezoidal metal patch, on which U-shaped grooves 8 and 9 are respectively etched. The U-shaped grooves are unclosed rings; and they are inclined structures.

[0026] The present invention adjusts the large C-shaped groove 3, the C-shaped groove 7 and the small C-sha...

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Abstract

The invention relates to a five-notch ultra wide band antenna and belongs to the technical field of wireless communication. The five-notch ultra wide band antenna comprises a medium plate (1), a radiating unit (2) printed on the same surface of the rectangular medium plate (1), a feed unit (10), a grounding unit (11), a big C-shaped groove (3) additionally formed in the radiating unit (2) of round metal chip, a C-shaped groove (7), a small C-shaped groove (4) nested in the C-shaped groove (3), open circuit branchknots (5 and 6), and U-shaped grooves (8 and 9) additionally formed in the trapezoid grounding unit, wherein the radiating unit (2) is directly connected with the feed unit (10). A gap (12) is arranged between the feed unit (10) and the grounding unit (11) and the coplanar waveguide feed is formed. The five-notch ultra wide band antenna has the advantages of being simple in structure, compact in size, low in wastage and cost, high in precision, and good in repeatability, performance of ultra wide band and notch property, capable of effectively filtering a plurality of signals and eliminating electromagnetic interference signals of a plurality of frequency channels, and suitable for small and portable ultra wide band (UWB) equipment.

Description

Technical field: [0001] The invention relates to a five-notch ultra-wideband antenna, which belongs to the technical field of wireless communication. Background technique: [0002] Since the US Federal Communications Commission designated the 3.1GHz-10.6 GHz frequency band as an UWB system band, industry and academia have invested a lot of research and effort in the field of UWB radio technology. As an important component of UWB systems, UWB antennas have attracted extensive research in terms of broadband impedance matching, stable radiation patterns, miniaturization, and low cost. [0003] In the frequency band allocated by the existing UWB system, there are radio interference signals in multiple frequency bands, for example: WiMAX signals in the 3.3GHz-3.7GHz frequency band, WLAN signals in the 5.15GHz-5.35 GHz and 5.725 GHz-5.825 GHz frequency bands, 7.25 GHz - X-band downlink satellite communication signals at 7.75 GHz and ITU signals at 8.025 GHz-8.4 GHz band. These s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q13/10
Inventor 申东娅徐杰张秀普朱纪超
Owner YUNNAN UNIV
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