DESIGN AND OPTIMIZATION OF COMPACT BALANCED ANTIPODAL VIVALDI ANTENNA

In this paper, the conformal finite-difference time-domain (CFDTD) method using PSO optimization is applied to design a compact directive balanced antipodal Vivaldi antenna for ultrawideband (UWB) applications. This paper demonstrates miniaturized antipodal Vivaldi antenna (32 × 35 × 1.6mm3), having low-cross polarization levels and reasonable gain from 3.1 to 10.6 GHz. The antenna peak gain is 5.25 dBi in the specified band. The simulated and experimental results of return loss, far field patterns and gain are presented.

[1]  E. Topsakal,et al.  A Small Antipodal Vivaldi Antenna for Ultrawide-Band Applications , 2008, IEEE Antennas and Wireless Propagation Letters.

[2]  Y.P. Zhang.  Finite-difference time-domain analysis of integrated ceramic ball grid array package antenna for highly integrated wireless transceivers , 2004, IEEE Transactions on Antennas and Propagation.

[3]  Y. Rahmat-Samii,et al.  Parallel particle swarm optimization and finite- difference time-domain (PSO/FDTD) algorithm for multiband and wide-band patch antenna designs , 2005, IEEE Transactions on Antennas and Propagation.

[4]  H. K. Kan,et al.  Design of compact directive ultra wideband antipodal antenna , 2006 .

[5]  Abbas Semnani,et al.  AN ENHANCED METHOD FOR INVERSE SCATTERING PROBLEMS USING FOURIER SERIES EXPANSION IN CONJUNCTION WITH FDTD AND PSO , 2007 .

[6]  Y. Rahmat-Samii,et al.  Boundary Conditions in Particle Swarm Optimization Revisited , 2007, IEEE Transactions on Antennas and Propagation.

[7]  Aly E. Fathy,et al.  DEVELOPMENT OF A NOVEL UWB VIVALDI ANTENNA ARRAY USING SIW TECHNOLOGY , 2009 .

[8]  L. Marcaccioli,et al.  Conformal double exponentially tapered slot antennas (DETSA) for UWB communications systems' front-ends , 2005, 2005 IEEE International Conference on Ultra-Wideband.

[9]  Stephen D. Gedney,et al.  Convolution PML (CPML): An efficient FDTD implementation of the CFS–PML for arbitrary media , 2000 .

[10]  Raj Mittra,et al.  Accurate modelling of planar microwave circuit using conformal FDTD algorithm , 2000 .

[11]  C. L. Hammond,et al.  Performance characteristics of the dual exponentially tapered slot antenna (DETSA) for wireless communications applications , 2003, IEEE Trans. Veh. Technol..

[12]  Shuxi Gong,et al.  LOW RCS DIPOLE ARRAY SYNTHESIS BASED ON MOM-PSO HYBRID ALGORITHM , 2009 .

[13]  Xiao-Juan Hu,et al.  STUDY ON CONFORMAL FDTD FOR ELECTROMAGNETIC SCATTERING BY TARGETS WITH THIN COATING , 2008 .

[14]  K. Mohammadpour‐Aghdam,et al.  COMPLETE DISPERSION ANALYSIS OF VIVALDI ANTENNA FOR ULTRA WIDEBAND APPLICATIONS , 2007 .