Fast Optimization of Ultra-Broadband Antennas With Distributed Matching Networks

A fast optimization scheme for the tuning of an antenna with a distributed matching network is proposed. The performances of the loaded radiator are rapidly evaluated starting from the scattering matrix of the unloaded antenna. The presented procedure is also able to evaluate the power dissipated on the resistive elements and hence the overall efficiency of the loaded antenna. This time-saving approach is particularly suitable to be exploited in an optimization process as proved in the test case of a loaded wideband antenna. A prototype of the designed antenna has been manufactured and measured to validate the overall strategy.

[1]  K. Yegin,et al.  Very broadband loaded monopole antennas , 1997, IEEE Antennas and Propagation Society International Symposium 1997. Digest.

[2]  G. Marrocco,et al.  Naval structural antenna systems for broadband HF communications , 2006, IEEE Transactions on Antennas and Propagation.

[3]  H. Carlin,et al.  Correction to The Scattering Matrix in Network Theory , 1957 .

[4]  Raj Mittra,et al.  A Technique for Efficient Evaluation of the Multilayered Green's Function for Frequency Sweep Analysis of Planar Microstrip Structures , 2010, IEEE Antennas and Wireless Propagation Letters.

[5]  Ho-Hsin Yeh,et al.  Software Defined Match Control Circuit Integrated With a Planar Inverted F Antenna , 2010, IEEE Transactions on Antennas and Propagation.

[6]  C. M. Butler,et al.  Design and realization of GA-optimized wire monopole and matching network with 20:1 bandwidth , 2003 .

[7]  R. H. Johnston,et al.  An improved small antenna radiation-efficiency measurement method , 1998 .

[8]  Korkut Yegin,et al.  On the design of broad-band loaded wire antennas using the simplified real frequency technique and a genetic algorithm , 2003 .

[9]  Danilo De Donno,et al.  MPIE/MoM Acceleration With a General-Purpose Graphics Processing Unit , 2012, IEEE Transactions on Microwave Theory and Techniques.

[10]  Raj Mittra,et al.  New designs of ultra wide-band communication antennas using a genetic algorithm , 1997 .

[11]  H. Carlin,et al.  The Scattering Matrix in Network Theory , 1956 .

[12]  Raj Mittra,et al.  A Computationally Efficient Technique for Prototyping Planar Antennas and Printed Circuits for Wireless Applications , 2012, Proceedings of the IEEE.

[13]  V. Rahmat-Samii,et al.  Genetic algorithms in engineering electromagnetics , 1997 .