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Broadband monopole antenna having multi-trapped wave characteristic

A technology with broadband monopole and notch wave characteristics, applied in the direction of antenna grounding device, radiation element structure, etc., can solve the problems of overlapping operating frequency bands of the system, affecting the practicability and reliability of wireless communication systems, and shortage of frequency band resources. Achieve the effects of high frequency band utilization, good impedance matching, and low frequency reduction

Inactive Publication Date: 2016-10-12
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rapid development of wireless communication and the emergence of various applications, serious problems such as the shortage of frequency band resources and the overlapping of operating frequency bands of different systems have occurred, which affect the practicability and reliability of wireless communication systems.

Method used

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  • Broadband monopole antenna having multi-trapped wave characteristic
  • Broadband monopole antenna having multi-trapped wave characteristic
  • Broadband monopole antenna having multi-trapped wave characteristic

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention will be further described:

[0026] like Figure 1 to Figure 3 As shown, a broadband monopole antenna with multi-notch characteristics includes a ground plate 1, a dielectric substrate 2, a feed network 3 and a radiation patch 4, and the dielectric substrate 2 is made of a commonly used FR4 (epoxy resin) board The relative permittivity is 4.4, the loss tangent value is 0.02, and the thickness is 1.6mm. The shape of the antenna is as follows: figure 1 As shown, the antenna is side-fed, and the input impedance is 50Ω.

[0027] The antenna in this embodiment is fabricated on a dielectric substrate 2 with a size of 20mm×25mm×1.6mm by etching, the ground plate 1 is etched on one side of the dielectric substrate 2, and the other side of the dielectric substrate 2 is etched with a feeder. The electric network 3 and the radiation patch 4, the feed network 3 is composed of a microstrip line, the grounding pl...

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Abstract

The invention discloses a broadband monopole antenna with multi-notch characteristics, which includes a grounding plate, a dielectric substrate, a feed network and a radiation patch, the thickness of the dielectric substrate is 1.6mm, and the grounding plate is arranged on the dielectric substrate On one side, the other side of the dielectric substrate is provided with a feed network and a radiation patch, the ground plate is equal to the width of the radiation patch, and the radiation patch is etched with H-shaped grooves, inverted E-shaped grooves and A cross-shaped slot, a rectangular slot is arranged on the ground plate. The antenna of the present invention has notch characteristics in two frequency bands of 3.3-4.3GHz and 5.15-6.0GHz, which can effectively suppress WiMAX wireless communication (3.3-3.7GHz), C-band satellite communication (3.7-4.2GHz) and WLAN ( 5.15‑5.825GHz) wireless communication and other signals in these three frequency bands interfere with the UWB system. The antenna has good performance, relatively stable radiation directivity, small size, simple design, and easy fabrication, and is suitable for ultra-wideband wireless communication systems, so it has great application prospects.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband monopole antenna with multi-notch characteristics. Background technique [0002] Broadband antenna is an antenna type with broad development and application prospects in the field of antennas. The main reason is its wide frequency bandwidth and wide coverage, which can solve the problems of narrow frequency bandwidth and small application range of narrowband antennas. The ultra-wideband antenna is a kind of broadband antenna, which means that it must be able to cover the 3.1-10.6GHz frequency band. It was proposed and developed under the background of the shortage of frequency band resources. In 2002, the U.S. Federal Communications Commission (FCC) issued a new broadband communication system specification. One of the main purposes is to alleviate the shortage of frequency band resources and meet the needs of high-speed communication, and allocate the 3.1-10.6GHz fre...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48
CPCH01Q1/38H01Q1/48
Inventor 金杰张强李茜
Owner TIANJIN UNIV
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