The Experts below are selected from a list of 6477 Experts worldwide ranked by ideXlab platform
Thierry Monediere - One of the best experts on this subject based on the ideXlab platform.
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systematic design of Parasitic Element antennas application to a wlan yagi design
IEEE Antennas and Wireless Propagation Letters, 2013Co-Authors: Faycel Fezai, Cyrille Menudier, Marc Thevenot, Thierry MonediereAbstract:In this letter, we present a synthesis method to design Parasitic Element antennas in a short and illustrative way without the need of parametric studies. The major aim of this method is to synthesize the antenna radiation pattern in a given direction, i.e., to find the equivalent reactive loads that must satisfy each Parasitic Element. The chosen structure to validate this principle is a 2.45-GHz Yagi-Uda antenna with surface mounted devices (SMD) acting as the synthesized reactive loads. This antenna has been successfully designed and measured. The SMD components have been introduced to demonstrate that the method is helpful to produce generic design.
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Systematic Design of Parasitic Element Antennas—Application to a WLAN Yagi Design
IEEE Antennas and Wireless Propagation Letters, 2013Co-Authors: Faycel Fezai, Cyrille Menudier, Marc Thevenot, Thierry MonediereAbstract:In this letter, we present a synthesis method to design Parasitic Element antennas in a short and illustrative way without the need of parametric studies. The major aim of this method is to synthesize the antenna radiation pattern in a given direction, i.e., to find the equivalent reactive loads that must satisfy each Parasitic Element. The chosen structure to validate this principle is a 2.45-GHz Yagi-Uda antenna with surface mounted devices (SMD) acting as the synthesized reactive loads. This antenna has been successfully designed and measured. The SMD components have been introduced to demonstrate that the method is helpful to produce generic design.
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Compact directive Parasitic Element antenna for wireless communications systems
2012 15 International Symposium on Antenna Technology and Applied Electromagnetics, 2012Co-Authors: Faycel Fezai, Cyrille Menudier, Marc Thevenot, Thierry MonediereAbstract:This article presents a design of a new compact planar Yagi-Uda antenna with three Parasitic Element fed by coplanar waveguide (CPW). The antenna is realized on multi-layer substrate (FR4) with 1.58mm of thickness and a relative permittivity of 4.4. The antenna is intended to operate at the ISM band with an obtained realized gain of 6.7 dB and a 184 MHz of bandwidth. The design of the antenna is carried out using the commercial electromagnetic simulator CST Microwaves Studio. The measured results of the whole system satisfied the simulated performances.
Yashar Zehforoosh - One of the best experts on this subject based on the ideXlab platform.
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switchable single dual band filtering uwb antenna using Parasitic Element and t shaped stub wave cancellers
Microwave and Optical Technology Letters, 2015Co-Authors: Z. Badamchi, Yashar ZehforooshAbstract:A new design of microstrip slot antenna with switchable single and dual band filtering functions for ultrawideband (UWB) applications is presented in this letter. To create filtering quality, in the proposed structure radiating patch is modified embedding two T-shaped stubs into the radiating patch and also using coupling Parasitic Element on the ground plane. The measured impedance bandwidth for VSWR <2 is spread in frequency range of 3–16.9 GHz with a fractional bandwidth of 139.7% while filtering the interference with C-band and wireless local area network systems at 3.4–4.28 GHz and 5.21–6.36 GHz, respectively. Introducing PIN diodes switches to the antenna structure has added an additional merit to the antenna performance which is switchable single/dual band filtering operation. The designed antenna has a simple structure with a very small size of 20 × 20 mm2 while presenting consistent almost omnidirectional radiation characteristics at its vast frequency range of operation. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2946–2950, 2015
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Switchable single/dual band filtering UWB antenna using Parasitic Element and T‐shaped stub wave cancellers
Microwave and Optical Technology Letters, 2015Co-Authors: Z. Badamchi, Yashar ZehforooshAbstract:A new design of microstrip slot antenna with switchable single and dual band filtering functions for ultrawideband (UWB) applications is presented in this letter. To create filtering quality, in the proposed structure radiating patch is modified embedding two T-shaped stubs into the radiating patch and also using coupling Parasitic Element on the ground plane. The measured impedance bandwidth for VSWR
Thep Kueathaweekun - One of the best experts on this subject based on the ideXlab platform.
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Improved Bandwidth Enhancement Techniques Using Hexagonal-Ring Shaped Tuning Stub and Band-Notched Characteristics Using C-Shaped Parasitic Element for Wireless Communication Systems
International Journal on Communications Antenna and Propagation (IRECAP), 2017Co-Authors: Thep KueathaweekunAbstract:In this paper, improved bandwidth enhancement techniques by using hexagonal-ring shaped tuning stub and band-notched characteristics using C-shaped Parasitic Element for wireless communication systems are presented. The proposed slot antenna consists of a wide slot cutting on the ground plane and a microstrip feed line with a hexagonal-ring shaped tuning stub in the opposite side. This antenna uses hexagonal-ring shaped tuning stub for enhanced bandwidth; by using a C-shaped Parasitic Element inserted in the slot antenna it creates the band-notched function at 5-6 GHz band to avoid any interference between UWB systems and WLAN systems. The measured result of slot antenna can achieve a band-rejection from 5 GHz to 6 GHz. Moreover, the proposed antenna can be modified to tune the band-notch frequency and to enhance the bandwidth of band-notched. The radiation patterns of the slot antenna in the x-z plane (H-plane) are omni-directional and the y-z planes (E-plane) are bi-directional.
Yi-cheng Lin - One of the best experts on this subject based on the ideXlab platform.
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Simple Printed Multiband Antenna With Novel Parasitic-Element Design for Multistandard Mobile Phone Applications
IEEE Transactions on Antennas and Propagation, 2013Co-Authors: Keng-chih Lin, Chih-hao Lin, Yi-cheng LinAbstract:A simple printed multiband antenna with Parasitic-Element design for multi-standard handheld terminals in mobile communications is presented. The proposed antenna performs three resonance modes covering six bands of wireless standards, including GSM, GPS, DCS, PCS, UMTS, and LTE 2300/2500. In geometry, the antenna simply consists of two metal stubs. One is an L-shaped driven stub working as a feeder and an embedded transmission line. The other is a U-shaped Parasitic stub working as a radiator. With fully printed and simple configuration, the proposed antenna design is cost effective in manufacturing and easy to optimize for different frequency bands. Parametric studies and the design rule are included. The antenna occupies an area of 18 × 37 mm2 on top of a system board. This communication covers the details of the antenna design, working principle, and the performances of simulation and measurement.
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A planar multiband antenna with Parasitic-Element design for multistandard mobile terminals
2009 IEEE Antennas and Propagation Society International Symposium, 2009Co-Authors: Keng-chih Lin, Chih-hao Lin, Yi-cheng LinAbstract:In conclusion, a novel planar PCB multiband antenna with Parasitic Element is proposed in this paper. Using only two simple radiating Elements, the antenna operates with three separate resonant modes, covering six popular communication bands. The antenna area only occupies a small physical space (18 × 37 × 0.6 mm3). This simple planar PCB structure makes the antenna fabrication very cost effective. The proposed antenna performs a stable gain level and omni-directional patterns in the desired bands.
Faycel Fezai - One of the best experts on this subject based on the ideXlab platform.
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systematic design of Parasitic Element antennas application to a wlan yagi design
IEEE Antennas and Wireless Propagation Letters, 2013Co-Authors: Faycel Fezai, Cyrille Menudier, Marc Thevenot, Thierry MonediereAbstract:In this letter, we present a synthesis method to design Parasitic Element antennas in a short and illustrative way without the need of parametric studies. The major aim of this method is to synthesize the antenna radiation pattern in a given direction, i.e., to find the equivalent reactive loads that must satisfy each Parasitic Element. The chosen structure to validate this principle is a 2.45-GHz Yagi-Uda antenna with surface mounted devices (SMD) acting as the synthesized reactive loads. This antenna has been successfully designed and measured. The SMD components have been introduced to demonstrate that the method is helpful to produce generic design.
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Systematic Design of Parasitic Element Antennas—Application to a WLAN Yagi Design
IEEE Antennas and Wireless Propagation Letters, 2013Co-Authors: Faycel Fezai, Cyrille Menudier, Marc Thevenot, Thierry MonediereAbstract:In this letter, we present a synthesis method to design Parasitic Element antennas in a short and illustrative way without the need of parametric studies. The major aim of this method is to synthesize the antenna radiation pattern in a given direction, i.e., to find the equivalent reactive loads that must satisfy each Parasitic Element. The chosen structure to validate this principle is a 2.45-GHz Yagi-Uda antenna with surface mounted devices (SMD) acting as the synthesized reactive loads. This antenna has been successfully designed and measured. The SMD components have been introduced to demonstrate that the method is helpful to produce generic design.
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Compact directive Parasitic Element antenna for wireless communications systems
2012 15 International Symposium on Antenna Technology and Applied Electromagnetics, 2012Co-Authors: Faycel Fezai, Cyrille Menudier, Marc Thevenot, Thierry MonediereAbstract:This article presents a design of a new compact planar Yagi-Uda antenna with three Parasitic Element fed by coplanar waveguide (CPW). The antenna is realized on multi-layer substrate (FR4) with 1.58mm of thickness and a relative permittivity of 4.4. The antenna is intended to operate at the ISM band with an obtained realized gain of 6.7 dB and a 184 MHz of bandwidth. The design of the antenna is carried out using the commercial electromagnetic simulator CST Microwaves Studio. The measured results of the whole system satisfied the simulated performances.
