نتایج جستجو برای: ultra wide band uwb antenna

تعداد نتایج: 574381  

2013
Rezaul AZIM Mohammad Tariqul ISLAM Ahmed Toaha MOBASHSHER

A compact rectangular printed antenna with dual band-notches is proposed for ultra-wideband (UWB) applications. The dual band-notch characteristics have been realized by etching one C-shaped parasitic element and rectangular split ring resonator above the ground plane. The proposed antenna can achieves a wide bandwidth from 2.9-11 GHz with the dual notched bands centred at 5.25 GHz and 5.8 GHz....

2016
Faten Ben Ghenaya Ridha Ghayoula Ali Gharsallah

Corresponding Author: Faten Ben Ghenaya, Unit of Research in High Frequency Electronic Circuits and Systems, Faculty of Mathematical, Physical and Natural Sciences of Tunis, Tunis El Manar University, Campus Universitaire Tunis-El Manar-2092, Tunis, Tunisia Email: [email protected] Abstract: This paper introduces the novel Ultra-Wide Band (UWB) antennas for UWB applications. We used two ...

2012
T. S. Ghouse Basha K. Tulasi Krishna C. Chandrakala V. Kishore D. Aruna

A compact Ultra wideband (UWB) antenna with bandnotched characteristic is presented in this paper. It has compact size of 30 mm x 31mm and has ultra wide band operation. A ‘C’ shaped slot was introduced to achieve band notch function from 4.8 GHz to 6 GHz to avoid interference from WLAN. The proposed antenna has ultra wide band frequency range from 3 GHz to 11.5 GHz for return loss below -10 dB...

2006
Vladimír SCHEJBAL Dušan ČERMÁK Zdeněk NĚMEC Ondřej FIŠER Martin HÁJEK

The propagation of ultra wide band (UWB) signals through walls is analyzed. For this propagation studies, it is necessary to consider not only propagation at a single frequency but in the whole band. The UWB radar output signal is formed by both transmitter and antenna. The effects of antenna receiving and transmitting responses for various antenna types (such as small and aperture antennas) ar...

Journal: :مهندسی برق و الکترونیک ایران 0
s. sadough a. mahmood e. jaffrot pierre duhamel

this paper investigates the multi-band ofdm (mb-ofdm) based physical (phy) layer proposal for ieee 802.15.3a working group on short-range high data-rate ultra-wide-band (uwb) communications. an overview of the mb-ofdm phy layer architecture with its various parameters is presented and the optimal choice of critical parameters is discussed. next, we derive the theoretical un-coded bit error rate...

2013
S. M. Abbas Ilyas Saleem Bilal Ahmed Hunaina Khurshid

A double sided printed antenna with parasitic patch is proposed for Ultra Wide Band (UWB) applications. Antenna has minimal dimensions of 30 x 24.8 x 1.6 mm with asymmetric feed line, whose impedance is 50 Ω. The presented antenna has gain of 7 dB and an extended bandwidth of 11.51 GHz ranging from 1.69 to 13.2 GHz at VSWR < 2. Economical FR4 epoxy substrate and uniform radiation patterns make ...

2014
Jian Ren Yingzeng Yin

A novel compact UWB antenna with 3.5/5.5 GHz dual notch-band characteristics is presented. The proposed antenna has a simple structure and compact size of 30 × 35mm2. Firstly, a compact modified rotated monopole antenna that covers UWB band is achieved. Then by inserting a λ/4 stub and etching two symmetrical λ/4 L-shape slots on the UWB antenna achieved before, a dual band-notched ultra-wideba...

2013
Shaya Karimkashi Ahmed A. Kishk Darko Kajfez Guifu Zhang David L. Boren

Some new focusing properties of time-domain ultra wide band (UWB) focusing array antennas are presented. The large current radiator (LCR) is considered as the UWB antenna element. Each LCR is replaced by a set of infinitesimal dipoles modeling both the near field and the far field patterns of the antenna element, as well as the coupling between the elements. Several antenna arrays with differen...

2016
Zhongmin Zhang Yongchang Sun

A coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with flexible and wide tunable dual bandnotched characteristics is proposed in this paper. The dual band-notched function is achieved by using an U-shaped slot inserted into the ellipse radiation patch and by using an elliptic parasitic slit placed near the ground plane. The wide tunable band-notched characteristic is implemented by ad...

2010
Eng Gee Lim Zhao Wang Chi-Un Lei Yuanzhe Wang

Since the release by the Federal Communications Commission (FCC) of a bandwidth of 7.5GHz (from 3.1GHz to 10.6GHz) for ultra wideband (UWB) wireless communications, UWB is rapidly advancing as a high data rate wireless communication technology. As is the case in conventional wireless communication systems, an antenna also plays a very crucial role in UWB systems. However, there are more challen...

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