Analysis of a Modified Sierpinski Gasket Monopole Antenna Printed on Dual Band Wireless Devices (original) (raw)
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Modified Sierpinski Gasket Patch Antenna for UMTS and 2.4/5.2 WLAN
Tikrit Journal of Engineering Sciences
A modified Sierpinski Gasket fractal antenna for multiband application is proposed in this paper. The modified ground plane and the microstrip feed are used to obtain the wider bandwidth at the resonance frequency. The antenna is designed and printed on two layers FR-4 substrate (εr=4.4 and h=1.6 mm) to cover the UMTS and 2.4/5.2 WLAN. The radiation pattern of the proposed antenna is similar to an omnidirectional. The proposed antenna has maximum gain of 1.88, 1.6, 4.31 dB at 2, 2.4, 5.2 GHz, respectively The properties of the antenna such as return losses, radiation pattern, input resistance and gain are determined via numerical CST Microwave Studio 2010 software.
Microstrip line-fed modified Sierpinki fractal monopole antenna for dual-wideband applications
2010
A printed monopole antenna with microstrip-fed Sierpinski fractal geometry for dual wideband application is presented. The operating bands are adjusted with the design of modified Sierpinski triangle (radiating patch), ground plane and scale factor used to create a fractal shape. The simulated 10 dB (VSWR 2:1) reflection bandwidth for first resonant frequency is 60% (1.47 GHz2.7 GHz). It covers GPS, DCS1800, PCS-1800, UMTS, IMT-2000, WiBRO (Wireless Broadband Internet Services) and WLAN bands. For second resonant frequency the band width is 8% (4.991HHz-5.4 GHz) and covers 5.2 GHz WLAN (802.11/ a). The radiation characteristics and gain of the modified Sierpinski fractal antenna are also presented and discussed.
Design of Compact Dual-band Fractal Monopole Antenna with Virtually Extended Ground Plane
Advanced Electromagnetics, 2018
Achieving a particular response to serve multiple wireless applications is regarded as the primary demand in our modern age because of the considerable development of the communication devices. In this paper, a compact monopole antenna with reduced ground plane has been suggested to meet the requirements of the dual-band WLAN applications. The antenna miniaturization has been carried out in employing two techniques. Initially, the fractal geometry has been applied to the antenna radiating element. Two-sided Koch fractal curves up to the third iteration have been used to increase the path of electrical current on the surface of the radiating element which is in the form of a square with dimensions. To gain more miniaturization, the antenna ground plane has been further reduced by using different lengths of two open-ended parallel stubs to form a virtually extended ground plane. This supportive technique has been adopted as a tuning means to control the path of the electrical currents exciting the resulting resonances. The proposed antenna and has been printed on an FR-4 substrate with a thickness of 1.6 mm and 4.4 relative dielectric constant and is fed by 50-ohm microstrip feed line. The resulting antenna dimensions are of about 18.93 mm × 18.93 mm. A parametric study has been carried out, and the results reveal that the proposed antenna offers a dual-band performance with a considerable ratio of resonant frequencies covering the existing 2.4/5.8 GHz WLAN applications, besides many other communication services. Measured results of a fabricated prototype show the validity of the proposed methodology to design a compact size dual-band antenna.
The Sierpinski fractal antenna has been analyzed parametrically, and observed how its characteristics changing with the variation of its different parameters. The input return loss and input impedance have log periodic behavior that characterizes the sierpinski monopole antenna as fractal geometry. The band spacing and impedance matching have been improved by using different scale factor and feeding methods. Sierpinski monopole antenna for WLAN bands (2.4GHz and 5GHz) has been designed and simulated using Ansoft Hfss.The operating frequencies of the proposed designs match with IEEE802.11b (2.45GHz) and IEEE802.11a (5.20 GHz and 5.775GHz) standards which would allow WLAN operation.
Sectoral sierpinski gasket fractal antenna for wireless LAN applications
International Journal of RF and Microwave Computer-Aided Engineering, 2012
A sectoral Sierpinski Gasket fractal (SSGF) antenna is proposed for dualband operation with wide-bandwidth covering GPS, DCS-1800, PCS-1800, UMTS, IMT-2000, Wireless broadband Internet Services (WiBro), Bluetooth, and WLAN bands. The SSGF antenna consists of volume 65.5 Â 27 Â 1.6 mm 3 . To analyze its performance, measurements are carried out. The proposed antenna model exhibits resonances in 1.51-3.39 GHz (2:1 VSWR BW 76.6%) and 5.31-6.32 GHz (2:1 VSWR BW 17.3%) bands with 2.5-5 dBi gain. Very good agreement is obtained between simulation and experimental results.
WSEAS TRANSACTIONS on COMMUNICATIONS archive, 2018
In this paper, a biconical patch antenna with inscribed third iteration fractal Sierpinsky asket is designed and optimized for operating at unlicensed ISM frequency bands. A circular split ring resonator (CSRR) is used as a defected ground plane structure for improving antenna matching. The initial design step of the proposed antenna is based on the design methodology of multi resonant Sierpinsky fractal patch antennas with inscribed triangular fractal geometry. Building on this, a simulation tool for high frequency electromagnetic structures is employed to optimize antenna performance. The experimental prototype is built and characterized using an antenna pattern measurement equipment and a network analyzer. Experimental results shown that the built antenna presents return losses of -23 dB, coupling bandwidth percentage of 10 %, antenna gain of 6.8 dBi, and VSWR of 1.14 at the 2.4 GHz resonant frequency. The corresponding values at the 5.9 GHz resonant frequency are -33 dB, 9 %, 8....
A Printed Fractal Based Slot Antenna for Multi-Band Wireless Communication Applications
Different slot structures have been widely used in numerous designs to produce antennas with enhanced bandwidths. In this paper, a printed slot antenna has been introduced as a candidate for use in the multi-band wireless communication applications. The antenna slot structure has a rectangular shape with its width, from the side of feed, has been modified in the form of Koch fractal curve of the second iteration. The antenna has been fed with 50 Ohm microstrip transmission line etched on the reverse side of the substrate. Modeling and performance evaluation of the proposed antenna design have been carried out using a method of moments based EM simulator, IE3D. Simulation results show that the resulting antenna exhibits a multi-resonant behavior making it suitable for a wide variety of multi-band wireless communication applications. The first resonant band, centered at 2.58 GHz, extends from 2.40 to 2.89 GHz. This band covers the 2.4 GHz WLAN band (frequency range 2.4–2.483 GHz) and the 2.5 GHz mobile WiMAX operating band (frequency range 2.5–2.7 GHz). The second resonant band, centered at 4.03 GHz, extends from 3.40 to 4.50 GHz. This band covers the 3.5 GHz mobile WiMAX operating band (frequency range 3.4–3.6 GHz). While the third resonant band centered at 5.74 GHz, extends from 5.42 to 6.18 GHz. This band covers the U-NII mid-band (frequency range 5.47–5.725 GHz) and U-NII high-band (frequency range 5.725 –5.875 GHz). Parametric study has been carried out to explore the effect of varying the antenna feed line length on its performance.
Parametric Study on the Compact GShaped Monopole Antenna for 2.4 GHz and 5.2 GHz Application
2013
This paper describes the design of a compact printed microstrip G-shaped monopole antenna for wireless local area network (WLAN application). The antenna has G-shaped resonating element which is designed for the two resonance frequencies at 2.4GHz and 5.2GHz respectively, which are the operating bands for WLAN application. The antenna is constructed by a non-conductor backed G-shaped strip with a mircostrip feed line. The dual band performance can be easily achieved by finetuning the length of the resonant path. The antenna is designed and simulated by using Computer Simulation Technology (CST) Studio simulation software. The parametric study with five different ground lengths had been done using parametric sweep. The the measurement results will be compared and analyzed with the simulated antenna.
Microwave and Optical Technology Letters, 2009
A Sierpinski-like fractal patch antenna with a slant strip in the first iteration is proposed in this article. The parameters of this kind of antenna are analyzed and optimized for dual WLAN application. The added slant strip provides simple probe feeding for compactness and also helps bandwidth enhancement due to multiple modes, which can be evident from current distribution. Measured return loss below Ϫ10 dB is from 2.38-2.45 GHz and 5.17-5.83 GHz, coinciding well with dual band WLAN standard. The boresight gain and radiation pattern in different planes are also presented.
International Journal of Engineering Research and Technology (IJERT), 2013
https://www.ijert.org/a-design-of-sierpinski-fractal-antenna-for-dual-band-and-effect-of-inserting-grid-on-performance-parameter https://www.ijert.org/research/a-design-of-sierpinski-fractal-antenna-for-dual-band-and-effect-of-inserting-grid-on-performance-parameter-IJERTV2IS70751.pdf In this paper a dual band sierpinski fractal antenna is proposed and result is taken by means of simulation after that a layer of low permittivity is inserted between the ground plane and the conducting plane and effect is also taken in account .So this is the two fold antenna which radiate efficiently at 520 MHz and 2.775 GHz. This frequency range can be effectively used in future telecommunication purposes in LTE.