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Multi-stop band ultra-wideband antenna based on miniaturization double module resonator

A dual-mode resonator and zero-order resonance technology, which is applied in the comprehensive design field of multi-stopband ultra-wideband communication antennas, can solve the problems of reduced operating bandwidth of antennas, failure to meet ultra-wideband characteristics, and inability to suppress signals, so as to improve impedance The effect of matching performance

Inactive Publication Date: 2008-12-10
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing stopband antennas have a single stopband, which cannot suppress signals at multiple frequency points; or, the working bandwidth of antennas with two stopbands is affected and reduced, which does not meet the ultra-wideband characteristics

Method used

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  • Multi-stop band ultra-wideband antenna based on miniaturization double module resonator
  • Multi-stop band ultra-wideband antenna based on miniaturization double module resonator
  • Multi-stop band ultra-wideband antenna based on miniaturization double module resonator

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Embodiment 1

[0020] Embodiment 1 is a multi-stop-band ultra-wideband antenna based on miniaturized dual-mode resonators and zero-order resonators.

[0021] Antenna structure such as figure 1 All dimensions shown are in mm. The size of the substrate in this embodiment is 150×104.2×1. The measured antenna insertion loss (Return Loss) and input voltage standing wave ratio (VSWR) results are shown in figure 2 with image 3 .

[0022] The designed antenna example includes two parts: semi-elliptic antenna and multi-stop band filter. Among them, the multi-stop band filter is realized by coupling multiple dual-mode stepped impedance resonators (Stepped Impedance Resonators SIRs) and a zero-order split ring resonator (Split Ring Resonators SRRs) with the feeder. The antenna has an ultra-wideband antenna working bandwidth (1-6.05GHz) and five stopbands (1.28-1.39, 1.51-1.61, 2.99-3.11, 4.02-4.35, 4.88-5.16GHz).

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Abstract

A multi-stop ban ultra wide band antenna based on a small-size double mode resonator and a zero-order resonator comprises a dielectric substrate (1), a lower surface metal plating (2) that covers upper and lower surfaces of the dielectric substrate (1), and a upper surface metal plating (3); the lower surface metal plating (2) is the earth of a feeder part, designed in isosceles trapezoid, so as to meet impedance matching requirement between a feeder (5) and an antenna radiating unit (4); the upper surface metal plating (3) comprises the following parts: an antenna radiating unit (4), a feeder (5), a first double mode stepped impedance resonator (8), a second double mode stepped impedance resonator (9), a third double mode stepped impedance resonator (10), and a zero-order splitting ring resonator (11). The antenna has simple structure, small volume, which meets the requirement of integration of a planar circuit, with low cost, which is convenient for batched manufacturing. Therefore, the invention is appropriate for various interference-free ultra wide band applications.

Description

technical field [0001] The invention is a comprehensive design technology of a multi-stop-band ultra-wideband (Ultra-Wideband, UWB) communication antenna capable of suppressing signal interference of multiple frequency bands. Background technique [0002] UWB communication system has the advantages of large bandwidth, high data rate, and low cost, and has been widely concerned and applied in recent years. At the same time, the development and application of various wireless communication systems make the existing frequency band resources more and more tense, especially the frequency band below 10 GHz, which is crowded with a large number of different types of communication services. For example, UMTS / WCDMA, GPS, WLAN, WiMAX, and FBWA, etc. The operating frequency bands of these systems overlap with UWB communication systems, so both may become potential sources of interference. In order to avoid these potential signal interferences while protecting the normal operation of ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q13/08H01Q23/00H01P1/20
Inventor 洪伟张彦蒯振起陈继新
Owner SOUTHEAST UNIV
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