Multi-stopband ultra-wideband antenna based on miniaturized dual-mode resonators and zero-order resonators

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

Inactive Publication Date: 2012-02-22
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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-stopband ultra-wideband antenna based on miniaturized dual-mode resonators and zero-order resonators
  • Multi-stopband ultra-wideband antenna based on miniaturized dual-mode resonators and zero-order resonators
  • Multi-stopband ultra-wideband antenna based on miniaturized dual-mode resonators and zero-order resonators

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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 and 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

The multi-stop band ultra-wideband antenna based on miniaturized dual-mode resonators and zero-order resonators includes a dielectric substrate (1), and a lower surface metal coating (2) covered on the upper and lower surfaces of the dielectric substrate (1), and the upper surface Metal coating (3); the metal coating (2) on the lower surface is the ground of the feeder part, which adopts an isosceles trapezoidal design to meet the impedance matching requirements between the feeder (5) and the antenna radiation unit (4); the metal coating on the upper surface The coating (3) includes the following parts: antenna radiation unit (4), feeder (5), first dual-mode ladder impedance resonator (8), second dual-mode ladder impedance resonator (9), third dual-mode Ladder impedance resonator (10), zero-order split ring resonator (11), the antenna has a simple structure, small size, meets the requirements of planar circuit integration, and has the advantages of low cost and convenient mass production, so it is suitable for various Anti-interference ultra-wideband 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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Patent Type & Authority Patents(China)
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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