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Ultra-Wideband Antenna with Notch Reconfigurable Function

An ultra-wideband antenna and function technology, applied in antenna coupling, radiating element structure and other directions, can solve the problems of non-reconfigurable adjustment control gating to notch frequency band, wireless communication narrowband signal interference, etc., to achieve easy processing and Wireless device integration, resource saving, compact size effect

Active Publication Date: 2017-09-22
SHENZHEN TIANCITONG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an ultra-wideband antenna with a notch reconfigurable function, which solves the interference of the wireless communication narrowband signal in the prior art, and cannot perform reconfigurable adjustment and control gating of the frequency band to be notched. question

Method used

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  • Ultra-Wideband Antenna with Notch Reconfigurable Function
  • Ultra-Wideband Antenna with Notch Reconfigurable Function
  • Ultra-Wideband Antenna with Notch Reconfigurable Function

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Embodiment Construction

[0046] The dielectric constant of the dielectric plate 1 is 4.3, and the thickness of the plate is 1.5 mm; the radiation patch 2 is a circular metal patch with a radius R of 10 mm. The antenna has UWB radiation performance in general and an input impedance of 50 ohms; the rounded ground 8 has two chamfers on the upper left and upper right corners of the antenna rectangle. This shape is used to make the antenna better and wider Impedance matching enables the antenna to obtain a better input reflection coefficient.

[0047] refer to image 3 , Figure 4 , Figure 5, are three connection modes of the four T-shaped parasitic microstrip lines 7 in the rectangular slot 3 of the present invention:

[0048] image 3 In this method, the upper and lower T-shaped parasitic microstrip lines 7 are respectively connected through two switches 6, and then the upper and lower T-shaped parasitic microstrip lines 7 are connected as a whole through the third switch 6;

[0049] Figure 4 , t...

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Abstract

The invention provides an ultra-broadband antenna with notch reconfigurable function, which includes a dielectric plate, a circular radiation patch is arranged on the top surface of the dielectric plate along the longitudinal centerline, and a transverse opening is opened inside the radiation patch. In the rectangular slot, a pair of T-shaped parasitic microstrip lines are arranged symmetrically along both sides of the longitudinal direction, and the necks of the pair of T-shaped parasitic microstrip lines are provided with intervals for installing switches; in the rectangular slot, there is another pair of T-shaped parasitic microstrip line; there is a groove along the longitudinal end of the radiation patch, and a feed microstrip line is fixed in the groove, and there is a gap between the inner end of the feed microstrip line and both sides of the groove; in the medium The longitudinal side of the bottom surface of the plate is provided with rounded corners with circular cut corners. The antenna of the present invention controls the notch frequency band to be in three states of WiMAX, WLAN or no notch function by gating the T-shaped parasitic microstrip line, thereby saving resources and improving antenna use efficiency.

Description

technical field [0001] The invention belongs to the technical field of ultra-wideband antennas, and relates to an ultra-wideband antenna with a notch reconfigurable function. Background technique [0002] UWB antenna, as an important part of UWB system, has been developed rapidly due to its smaller size, lower manufacturing cost, and easy integration with circuit boards. [0003] However, UWB's own wide frequency band 3.1-10.6GHz contains some wireless narrowband signal frequency bands, such as 3.3-3.7GHz WiMAX (IEEE 802.16 Worldwide Interoperability for MicrowaveAccess), 5.15-5.825GHz WLAN (IEEE 802.11a wireless local area networks ) etc. will cause interference to the UWB system. In actual use, it is necessary to find a way to remove this interference. In 2011, M.Ojaroudi designed an ultra-wideband antenna with T-shaped microstrip line and PI-shaped ground structure applied in the 5-6GHz WlAN frequency band. In 2012, Tahsin UddinMullick designed an ultra-broadband anten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/52
Inventor 席晓莉杨海龙侯华龙宋忠国
Owner SHENZHEN TIANCITONG TECH CO LTD
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