Novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to feeder and patch

An ultra-wideband antenna and stop-band technology, which is applied in the field of multi-band notch ultra-wideband antennas, and achieves the effect of simple and easy implementation and small mutual coupling.

Inactive Publication Date: 2014-07-23
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

But in a triple-stopband UWB antenna, the range of the stopbands is too wide, leaving only a small fraction of the usable bandwidth

Method used

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  • Novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to feeder and patch
  • Novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to feeder and patch
  • Novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to feeder and patch

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Embodiment Construction

[0032] The specific embodiments of the present invention are as follows.

[0033]First, select an ultra-wideband antenna that covers the commercial frequency band promulgated by the FCC. According to the UWB system's requirements for ultra-wideband antenna, small size, and low cost, combined with the characteristics of low cost, light weight, and easy fabrication of monopole antennas, the circular patch ultra-wideband antenna in Document 3 was selected as a prototype. The specific antenna The structure is shown in 1(a).

[0034] Second, notches are implemented at the feeder and radiating patches, respectively. Specifically, a 1 / 4 wavelength open slot is opened in the radiation patch, and the size of the open slot is sl×sw. The simulation results show that the length sl of the slot mainly affects the center frequency point of the stop band, and the width sw of the slot Mainly affects the bandwidth of the stopband. The optimized parameters are sl=13mm, sw=0.4mm, and the frequ...

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Abstract

The invention relates to the design of a notch ultra-wideband antenna and belongs to the technical field of propagating and receiving electromagnetic waves. The invention provides a novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to a feeder and a radiation patch; specifically speaking, an open slot of 1/4 wavelength is formed in the radiation patch and C-shaped half-wavelength open-circuit resonance units different in size are loaded at the two sides of the feeder, and therefore, a three-stop-band notch ultra-wideband antenna is realized; the three-stop-band notch ultra-wideband antenna is capable of filtering out interferences from WiMAX (Worldwide Interoperability for Microwave Access) (3.3-3.6GHz) and WLAN (Wireless Local Area Network) (5.15-5.35GHz, 5.725-5.825GHz) systems. The antenna has the advantages of independently adjustable frequency point of each stop-band and independently adjustable bandwidth of each stop-band. Simulation results and actual measurement results prove excellent multi-frequency filter characteristic of the antenna.

Description

technical field [0001] The invention proposes a multi-band notch ultra-wideband antenna that filters out interference from WiMAX systems (3.3-3.6GHz) and WLAN systems (5.15GHz-5.35GHz, 5.725GHz-5.825GHz), and belongs to the technical field of electromagnetic wave propagation and reception . Background technique [0002] Since the FCC (Federal Communications Commission, Federal Communications Commission) issued 3.1GHz-10.6GHz to the commercial ultra-wideband communication frequency band, UWB technology (Ultra Wide Band, ultra-wideband) has become the most promising technology for indoor short-distance high-speed communication one. However, in the entire UWB frequency range, the existence of some narrowband systems will interfere with UWB communications, such as WiMAX systems and WLAN systems. As the core device of the UWB system, the UWB antenna has a great influence on the overall performance of the system. In order to filter out the interference of the narrowband system a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/52H01Q1/38H01Q1/50
Inventor 纪越峰田慧平王绪东果争张璟
Owner BEIJING UNIV OF POSTS & TELECOMM
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