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Ultra wide band antenna with dual-stop band function

An ultra-wideband antenna, dual stopband technology, applied in the directions of antenna coupling and radiating element structure, can solve the problems of large antenna volume, difficult adjustment of stopband center frequency, unfavorable system integration, etc., achieving low cost, compact structure, Easy to process effect

Inactive Publication Date: 2017-06-20
HARBIN FEIYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have limitations, such as the large size of the antenna, which is not conducive to system integration; the center frequency of the stop band is not easy to adjust

Method used

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  • Ultra wide band antenna with dual-stop band function
  • Ultra wide band antenna with dual-stop band function
  • Ultra wide band antenna with dual-stop band function

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Embodiment Construction

[0022] The present invention designs an ultra-wideband antenna with double stop band functions, and the filter can avoid mutual interference with WLAN system and WiMAX system.

[0023] Below in conjunction with accompanying drawing, invention is described in more detail:

[0024] Such as figure 1 As shown, an ultra-broadband antenna with double stopband function of the present invention, the radiation unit (101) on the dielectric substrate, the impedance matching input microstrip line (102), and the DGS structure (103) are made of copper material.

[0025] An example of the present invention is figure 2 As shown, the dielectric substrate (106) is FR4 material with a dielectric constant of 4.4, and the thickness of the dielectric substrate is 1.6mm.

[0026] The metal ground plate under the dielectric substrate is made of copper material.

[0027] Such as figure 2 As shown, the lengths of Rh, h1, f1, and f2 are 10mm, 6mm, 10mm, and 3mm respectively; image 3 As shown, th...

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Abstract

An ultra wide band antenna with a dual-stop band function relates to an ultra wide band band-stop antenna of which the notch frequency band is located at the WLAN and WiMAX frequency bands, and is composed of a dielectric substrate (106), a radiation unit (101) formed on the dielectric substrate, an impedance matching input microstrip line (102) and a defected ground structure (DGS). An S-shaped groove (103) is notched on the radiation unit (101) on the dielectric substrate, and the DGS is composed of a T-shaped groove (104) and a rounded rectangular groove structure (105). The ultra wide band antenna with the dual-stop band function of the present invention realizes the passband bandwidth required by the ultra wide band by utilizing the radiation unit, the impedance matching input microstrip line and a metal grounding plate, utilizes the circular radiation unit to improve the stop band attenuation inhibition, and utilizes the DGS and the S-shaped groove on the radiation unit to realize the band stop characteristic. The stop band of the antenna involved in the present invention is nearby 3.7 GHz and 5.75 GHz, thereby avoiding the mutual interference of a WLAN system and a WiMAX system.

Description

technical field [0001] The present invention relates to an ultra-wideband band-stop antenna, in particular to an ultra-wide-band antenna with dual-band-stop functions, which can suppress the impact of ultra-wideband systems on WiMAX systems (3.3-3.7GHz), WLAN systems (5.15-5.35GHz), etc. ), (5.725-5.825GHz) interference. Background technique [0002] In February 2002, the U.S. Federal Communications Commission (FCC) approved the 3.1-10.6GHz frequency band for commercial communications, so UWB is widely used. [0003] However, due to the wide frequency band covered by UWB communication, some frequency bands share frequency band resources with other wireless systems, and may interfere with other systems, such as WiMAX system (3.3-3.7GHz) and WLAN system (5.15-5.35GHz), ( 5.725-5.825GHz). How to solve the same-channel interference has become an important content of ultra-wideband research, so ultra-wideband antennas with stop-band characteristics have high practical value. ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/52
Inventor 郝术苗王燕燕孟祥余
Owner HARBIN FEIYU TECH
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