Multi-frequency broadband antenna based on broadband antenna and trapped wave structure

A broadband antenna and wave trap technology, applied in the field of multi-frequency antenna structure, can solve the problems of narrow frequency band, difficult adjustment of resonance point, complex antenna structure, etc.

Inactive Publication Date: 2013-01-30
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This type of antenna usually has a complex structure, the resona

Method used

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  • Multi-frequency broadband antenna based on broadband antenna and trapped wave structure
  • Multi-frequency broadband antenna based on broadband antenna and trapped wave structure
  • Multi-frequency broadband antenna based on broadband antenna and trapped wave structure

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[0021] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0022] See figure 1 , Figure 1A As shown, a multi-frequency broadband antenna based on a broadband antenna and a trap structure of the present invention is composed of a radiator 1, a first U-shaped slot 2, a second U-shaped slot 3, a third U-shaped slot 4, and a floor. 5. The feeder line 6 and the dielectric board 10 are composed; the radiator 1 and the feeder line 6 are deposited on one surface of the dielectric board 10 by a copper-clad process, and the floor 5 is deposited on the other surface of the dielectric board 10 by a copper-clad process. The radiator 1 and the feeder 6 are copper-clad together; the copper-clad thickness of the radiator 1 (H 1 ) Is 0.01mm, the copper thickness of the feeder 6 (H 6 ) Is 0.01mm, the copper thickness of floor 5 (H 5 ) Is 0.01mm; the first U-shaped gap 2, the second U-shaped gap 3, and the third U-shaped gap 4 are etched...

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Abstract

The invention discloses a multi-frequency broadband antenna based on a broadband antenna and trapped wave structure. The antenna consists of a radiator (1), a first U-shaped gap (2), a second U-shaped gap (3), a third U-shaped gap (4), a floor (5), a feeder (6) and a dielectric slab (10), wherein the radiator (1) and the feeder (6) are applied to one surface of the dielectric slab (10) by a copper applying process; the floor (5) is applied to the other surface of the dielectric slab (10) by a copper applying process; the radiator (1) and the feeder (6) are applied together; and the first U-shaped gap (2), the second U-shaped gap (3) and the third U-shaped gap (4) are etched on the radiator (1) by photoetching. By adopting the three U-shaped gaps, multi-frequency resonance of the antenna is realized, and the multi-frequency antenna can operate within the frequency ranges from 2.15GHz to 2.8GHz, from 3.15GHz to 3.85GHz, from 4.65GHz to 6.1GHz and from 6.6GHz to 8.0GHz, the central resonance frequency of the antenna is adjustable, the operating frequency of the multi-frequency antenna can be adjusted conveniently, and the shortages that the structure is complex and the resonance point cannot be easily adjusted in the conventional multi-frequency antenna design are overcome.

Description

technical field [0001] The present invention relates to a multi-frequency antenna structure suitable for communication systems, more particularly, refers to a multi-frequency broadband antenna with adjustable frequency bands that can work in frequency bands such as Bluetooth, WiMax, WLAN and X-band satellite communications. Background technique [0002] With the development of modern wireless communication technology, antennas working on a single frequency can no longer meet the requirements of modern communication equipment, so the research on multi-frequency antennas has become a research hotspot. At the same time, the development of personal mobile communication has put forward the requirement of miniaturization of communication equipment. [0003] "Design and Impedance Matching of Microstrip Antenna" was disclosed in "Modern Electronic Technology" 2008, No. 1, No. 264. It is disclosed herein that the shape of the radiating elements in the microstrip antenna can be squar...

Claims

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Application Information

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IPC IPC(8): H01Q5/01H01Q1/38H01Q13/10H01Q1/50H01Q5/10
Inventor 王珺珺贺旭东
Owner BEIHANG UNIV
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