Proceedings ArticleDOI
A multi-fractal antenna for WLAN and WiMAX application
Basil K. Jeemon,K. Shambavi,Z. C. Alex +2 more
- pp 953-956
TLDR
In this paper, the authors proposed a multi-fractal antenna operating in ultra wide band range for WLAN and WiMAX applications, where the addition of Koch and Sierpinski fractal techniques gives rise to better impedance bandwidth and return loss characteristics.Abstract:
This paper presents a multi-fractal antenna operating in ultra wide band range for WLAN and WiMAX applications. The novel idea of multi-fractal geometry is introduced into the conventional triangular patch antenna with microstrip feed. The addition of Koch and Sierpinski fractal techniques gives rise to better impedance bandwidth and return loss characteristics. The proposed antenna exhibits resonant frequency at 5.48 GHz with a return loss of -31.9dB to satisfy the band specifications for wireless LAN applications IEEE802.11a (5.15-5.35 GHz, 5.725-5.875 GHz) and WiMAX application at 5GHz (5.25-5.85 GHz). It is found that the antenna exhibits omni-directional radiation pattern in H plane with a maximum gain of 3.5dB. The antenna exhibits a stable radiation pattern throughout the operating frequency range of 4.68-6.43 GHz. The antenna covers the upper and lower bands of WLAN operating frequencies. The simulation was performed in High Frequency Structure Simulator.read more
Citations
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Journal ArticleDOI
Design of multi band triangular microstrip patch antenna with triangular split ring resonator for S band, C band and X band applications
TL;DR: The proposed quad band Triangular Microstrip antenna designed for IEEE 802.11a WLAN, C band downlink communication and x band radar applications is suggested and yields better return and gain by resonating in 3.5 GHz, 4.1 GHz, 5.6 GHz and 9.7 GHz.
Journal ArticleDOI
Fractal Antennas A Novel Miniaturization Technique for wireless networks
TL;DR: In the recent years and with the multiplication and miniaturization of telecommunications systems and their integration in restricted environments, such as Smart-phones, tablets, cars, airplanes, and other embedded systems, the design of compact multi-bands and Ultra Wide Band antennas becomes a necessity.
Journal ArticleDOI
CPW-fed H-tree fractal antenna for WLAN, WIMAX, RFID, C-band, HiperLAN, and UWB applications
Abdelati Reha,Abdelkebir El Amri,Othmane Benhmammouch,Ahmed Oulad Said,Abdelhakim El Ouadih,Marouane Bouchouirbat +5 more
TL;DR: In this article, the authors presented three iterations of a coplanar waveguide-fed H-tree fractal antenna for IEEE 802.11 a/h/j/n/ac/y networks.
The behavior of a CPW-Fed miscrostrip hexagonal patch antenna with H-Tree Fractal slots
TL;DR: In this article, a CPW-fed microstrip hexagonal patch antenna is designed using the relationship between the design of microstrip circular and hexagonal patches antennas, and the setup of H-Tree fractal slot on the resonant element allows obtaining lower resonant frequencies, more -10dB bandwidths, more resonant frequency and important gains.
Journal ArticleDOI
CPW-Fed KOCH SNOWFLAKE Fractal Antenna for UWB Wireless Applications
TL;DR: Four iterations of a Coplanar Waveguide-Fed KOCH SNOWFLAKE fractal antenna are studied to obtain a miniaturized antenna with high gain, multi-band and broad-band behavior.
References
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Journal ArticleDOI
On the behavior of the Sierpinski multiband fractal antenna
TL;DR: In this article, the multiband behavior of the fractal Sierpinski (1915) antenna is described and compared to the well-known single-band bow-tie antenna.
Journal ArticleDOI
Self-similarity and the geometric requirements for frequency independence in antennae
Robert G. Hohlfeld,Nathan Cohen +1 more
TL;DR: In this article, the authors show that frequency independence is not achieved by self-similarity alone, but does aid in smoothing out impedance variations for coarsely iterated frequency independent antennae.
Journal ArticleDOI
Optimization of Impedance Bandwidth for the Printed Rectangular Monopole Antenna
Matthias John,Max J. Ammann +1 more
TL;DR: In this article, the effect of varying the plate width, feed gap height, and feedline width on the impedance bandwidth was examined, and it was shown that for a fixed groundplane size, that optimization of these parameters can yield an impedance bandwidth ratio of 43:1 without using any broadbanding techniques.
Journal ArticleDOI
On the resonant properties of the Koch fractal and other wire monopole antennas
TL;DR: In this paper, the performance properties of the Koch fractal monopole, normal mode helix, and two meander line configurations are considered and it is shown that when these antennas are made to be resonant at the same frequency, they essentially exhibit the same performance characteristics independent of the differences in their geometry and total wire length.
Journal ArticleDOI
Small-Size Microstrip Patch Antennas Combining Koch and Sierpinski Fractal-Shapes
TL;DR: In this article, the authors proposed a novel technique to reduce the size of microstrip patch antennas by etching the patch edges according to Koch curves as inductive loading and inserting the Sierpinski carpets into the patch as slot loading.