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UWB (ultra wide band) antenna with dual resistance band function

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

Inactive Publication Date: 2015-06-03
HARBIN HESON SCI & 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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  • UWB (ultra wide band) antenna with dual resistance band function
  • UWB (ultra wide band) antenna with dual resistance band function
  • UWB (ultra wide band) antenna with dual resistance band function

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Embodiment Construction

[0025] The invention designs an ultra-wideband antenna with double stopband functions, which suppresses the interference of the ultra-wideband system to the RFID system (6.8GHz) and the WLAN system (5.15-5.35GHz).

[0026] Below in conjunction with accompanying drawing, invention is described in more detail:

[0027] like figure 1 As shown, an ultra-wideband antenna with double stopband function of the present invention, the radiation unit (101) on the dielectric substrate, the impedance matching input microstrip line (102), the broken line EBG electromagnetic bandgap structure (103), the cross The cross-type EBG electromagnetic bandgap structure (106) adopts copper material.

[0028] An example of the present invention is figure 2 As shown, the dielectric substrate (105) is a GML1000 material with a dielectric constant of 3.2. The dielectric substrate has a thickness of 0.762 mm. The metal grounding plate (104) under the dielectric substrate is made of copper.

[0029] ...

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Abstract

The invention provides an UWB (ultra wide band) antenna with a dual resistance band function, and relates to an UWB antenna. The UWB antenna comprises a medium substrate (105), a radiating unit (101), an impedance matching input microstrip wire (102), a folding line type EBG (electromagnetic band gap) structure (103), a cross type EBG structure (106) and a metal grounding plate (104), wherein the radiating unit (101), the impedance matching input microstrip wire (102), the folding line type EBG structure (103) and the cross type EBG structure (106) are arranged on the medium substrate, and the metal grounding plate (104) is arranged under the medium substrate. The UWB antenna has the advantages that by utilizing the radiating unit, the impedance matching input microstrip wire and the metal grounding plate, the pass band bandwidth required by the UWB is realized; by arranging the two groups of EBG structures, the dual resistance band property is realized; the two resistance bands are respectively arranged near 5.2GHz and 6.8GHz, and the interference of an UWB system on an RFID (radio frequency identification) system (6.8GHz) and a WLAN (wireless local area network) system (5.15-5.35GHz) is inhibited.

Description

technical field [0001] The invention relates to an ultra-wideband band-rejection antenna, in particular to an ultra-wideband antenna with double-restriction band functions, which can suppress mutual interference between an ultra-wideband system and an RFID and WLAN system. Background technique [0002] In February 2002, the US 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 (3.2-3.5GHz), WLAN system (5.15-5.35GHz), ( 5.725-5.825GHz) and RFID systems (6.8GHz). How to solve co-channel interference has become an important content of UWB research, so ultra-wideband antennas with stopband characteristics have high practical value. [0004] In recent years, there have been many d...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/52H01Q13/08
Inventor 喻人杰王姣张谢馥
Owner HARBIN HESON SCI & TECH
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