Novel EBG (electromagnetic band gap) structured ultra-wide-band wave-trapping antenna

A notch antenna and ultra-wideband technology, which is applied in the directions of antenna coupling, antenna grounding device, and radiation element structure, can solve the problems of large antenna volume, difficult adjustment of stop band center frequency, and unfavorable system integration, etc., and achieve low cost, The effect of compact structure and convenient processing

Inactive Publication Date: 2016-07-20
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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  • Novel EBG (electromagnetic band gap) structured ultra-wide-band wave-trapping antenna
  • Novel EBG (electromagnetic band gap) structured ultra-wide-band wave-trapping antenna
  • Novel EBG (electromagnetic band gap) structured ultra-wide-band wave-trapping antenna

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Embodiment Construction

[0022] The invention designs a novel EBG structure ultra-wideband notch antenna, which can suppress the mutual interference between the UWB system and the RFID system.

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

[0024] Such as figure 1 As shown, a novel EBG structure ultra-wideband trap antenna of the present invention, the radiation unit (101) on the dielectric substrate, the impedance matching input microstrip line (102), and the broken line EBG structure (103) are made of copper materials.

[0025] 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 material.

[0026] Such as figure 1 As shown, the lengths of L1, L2, L3, L4, L5, and L6 are 65mm, 10mm, 7.86mm, 44.45mm, 1mm, and 0.8mm respect...

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Abstract

The invention relates to a novel EBG (electromagnetic band gap) structured ultra-wide-band wave-trapping antenna, and relates to the ultra-wide-band wave-trapping antenna, wherein the wave-trapping frequency band of the antenna is an RFID frequency band. The antenna comprises a dielectric substrate (105), and a radiation unit (101), an impedance matching input microstrip line (102) and a broken-line type EBG structure (103) which are arranged on the dielectric substrate, and a metal grounding plate (104) below the dielectric substrate. The passing band bandwidth of the UWB (ultra wide band) requirement can be realized through the radiation unit, the impedance matching input microstrip line and the metal grounding plate; and the band-stop characteristic is realized through the EBG structure. The stop band of the antenna provided by the invention is 6.8GHz, so that the mutual interference between the antenna and an RFID system (6.8GHz) is avoided.

Description

technical field [0001] The invention relates to an ultra-wideband notch antenna, in particular to an ultra-wideband notch antenna with a novel EBG structure, which can suppress mutual interference between an ultra-wideband system and an RFID 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 notch characteristics have high practical value. [0004] In recent years, there have been many design ideas for ultra-wideb...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/52
Inventor 喻人杰段瀚林孟祥余
Owner HARBIN FEIYU TECH
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