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Small three-trap ultra-broadband antenna

An ultra-broadband antenna and three-notch technology, which is applied in the field of mobile communication systems and wireless communications, can solve the problem of thinness of communication application equipment, multi-functional integration, inability to shield multiple narrowband systems at the same time, and multi-notch antenna volume Large and other problems, to achieve the effect of increasing the scope of application, simple structure, and good notch characteristics

Active Publication Date: 2016-12-07
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing multi-notch antennas have disadvantages such as large size, complex structure, and inability to shield the influence of multiple narrowband systems at the same time, and cannot adapt to the trend of communication application equipment becoming thinner and multi-functional.

Method used

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  • Small three-trap ultra-broadband antenna
  • Small three-trap ultra-broadband antenna
  • Small three-trap ultra-broadband antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Embodiment: Antenna structure such as figure 1 As shown, the corresponding parameters are marked on it, and the antenna is printed on the size of 16×10×1.5mm 3 1 on the dielectric substrate, that is, on the FR4 substrate. The front side of the dielectric substrate 1 is a rectangular microstrip feeder 2 and a rectangular radiation patch 3 . The rectangular ground plate 4 on the back of the substrate has a narrow vertical width. The specific parameter list is shown in Table 1:

[0036] Table 1 Antenna parameter details

[0037] parameters

l

l 1

l 2

l 3

l 4

l 5

l 6

l 7

l 8

l 9

l 10

l 11

Dimensions (mm)

16

9

6

0.5

0.5

7

6

4

1.5

1.5

3.5

1.5

parameters

w

w 1

w 2

w 3

w 4

w 5

w 6

w 7

w 8

w 9

w 10

w 11

Dimensions (mm)

10

9

2

3

1.5

0.5

1.5

0.5

0.5

0.5

1

0.5 ...

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Abstract

The invention discloses a small three-trap ultra-broadband antenna, which comprises a dielectric substrate, a microstrip feeder, a rectangular radiation patch and a rectangular ground plate, wherein the microstrip feeder and the rectangular radiation patch are arranged on the dielectric substrate; the microstrip feeder is in a rectangular form; a symmetrical structure is adopted by the rectangular radiation patch to achieve a trap characteristic; two inverted T-shaped slot structures are designed on the rectangular radiation patch part to achieve a 5.2 / 5.8GHz trapped wave; a 3.5GHz trapped wave is achieved by a comb-shaped slot; a C-shaped slot and two rectangular slots are formed and two square patches at the middle part of the comb-shaped slot are reserved to respectively separate two 5.2GHz and 5.8GHz specific trapped waves; and an extremely large impedance bandwidth within a range of 2.2-14.6GHz is achieved by combining the radiation patch structure with the relatively narrow rectangular ground plate. The small three-trap ultra-broadband antenna has the characteristics of being small in volume, simple in structure, good in trap characteristic and large in impedance bandwidth.

Description

technical field [0001] The invention belongs to the field of mobile communication system and wireless communication, and in particular relates to a small three-notch ultra-wideband antenna. Background technique [0002] Since the U.S. Communications Commission (US-FCC) classified the 3.1-10.6GHz frequency band for ultra-wideband (UWB) commercial use in 2002, UWB systems have become more and more attractive, and many new emerging UWB communication systems are working in this frequency band. Due to the extremely wide operating frequency band of the UWB system, there is often spectrum overlap with other narrowband systems, such as the 3.3-3.6GHz Wireless Metropolitan Area Network (Worldwide Interoperability for Microwave Access, WiMAX) frequency band and the 5.1-5.9GHz Wireless Local Area Network (WLAN) frequency band. Networks, WLAN). In order to reduce the mutual interference between different communication systems, the design of notched ultra-wideband antennas with frequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/314H01Q5/50
Inventor 董健李茜茜邓联文
Owner CENT SOUTH UNIV
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