A novel multi band notched octagonal shaped fractal UWB antenna

In this paper, a small novel octagonal shaped ultra wideband (UWB) antenna was designed using Minkowski like fractal geometry including the multi band notch characteristics. The investigated UWB antenna geometry addresses the challenges such as compact size and wideband operating frequency range because of the self-similar and multiple resonance characteristics of the fractal geometry, used in this work. The multiple notches in the ground plane leads to better return loss and the desired operational bandwidth in the 3.1 GHz - 10.6 GHz range. The compact 16.5 mm × 13.5 mm antenna geometry exhibits nearly omnidirectional radiation pattern, proper impedance matching with VSWR <; 2 over the entire UWB frequency range. These characteristics offer opportunities to explore the proposed UWB antenna for various applications.

[1]  Changiz Ghobadi,et al.  A Novel Printed UWB Slot Antenna With Reconfigurable Band-Notch Characteristics , 2013, IEEE Antennas and Wireless Propagation Letters.

[2]  Inscribed gasket fractal circular monopole antenna for UWB application , 2011, 2012 1st International Conference on Emerging Technology Trends in Electronics, Communication & Networking.

[3]  T. Babij,et al.  Koch island fractal ultra wideband dipole antenna , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[4]  S. K. Behera,et al.  A hexagonal shaped fractal antenna for UWB application , 2012, 2012 International Conference on Communications, Devices and Intelligent Systems (CODIS).

[5]  Nasser Ojaroudi,et al.  Dual band-notched small monopole antenna with novel W-shaped conductor backed-plane and novel T-shaped slot for UWB applications , 2013 .

[6]  R. M. Edwards,et al.  Dual Band-Notch CPW-Ground-Fed UWB Antenna by Fractal Binary Tree Slot , 2009, 2009 Fifth International Conference on Wireless and Mobile Communications.

[7]  Nasser Ojaroudi,et al.  Dual Band-Notched Small Monopole Antenna With Novel Coupled Inverted U-Ring Strip and Novel Fork-Shaped Slit for UWB Applications , 2013, IEEE Antennas and Wireless Propagation Letters.

[8]  Ronghong Jin,et al.  Design of a CPW-fed Ultra Wideband Crown Circular Fractal Antenna , 2006, 2006 IEEE Antennas and Propagation Society International Symposium.

[9]  Binod Kr Kanaujia,et al.  A CPW-Fed Compact UWB Microstrip Antenna , 2013, IEEE Antennas and Wireless Propagation Letters.

[10]  Sachendra N. Sinha,et al.  UWB fractal slot antenna designs , 2011, 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS 2011).

[11]  Rowdra Ghatak,et al.  Design and analysis of fractal based UWB monopole antenna , 2013, 2013 National Conference on Communications (NCC).

[12]  Mehdi Moradian,et al.  Space-filling Patch Antennas with CPW Feed , 2006 .

[13]  Moreira,et al.  Microstrip fractal antennas for multistandard terminals , 2004, IEEE Antennas and Wireless Propagation Letters.

[14]  Hannu Tenhunen,et al.  Performance-Optimized Quadrate Bowtie RFID Antennas For Cost-Effective and Eco-Friendly Industrial Applications , 2012 .

[15]  David J. Edwards,et al.  Ultra-wideband : antennas and propagation for communications, radar and imaging , 2006 .