Cosecant Squared Pattern Synthesis for Reflector Antenna using a Stochastic Method
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Cosecant Squared Pattern Synthesis for Reflector Antenna using a Stochastic MethodAbstract
A novel method based on invasive weed optimization (IWO) algorithm is described for synthesizing a point source doubly curved reflector antenna to produce a shaped beam in one plane and narrow beam in the perpendicular plane. The whole reflector body can be created by determining two basic curves. The central vertical curve is approximately responsible for producing a shaped beam in the vertical plane. It can be expressed by a well-defined function, and the function coefficients will compose a solution space to be explored by IWO. The transverse section curve is known to be a parabola for producing a narrow beam in that plane. The validity of the proposed method is verified by an example of shaped reflector antenna with cosecant squared pattern and comparing it with previously used methods. The simulation results based on physical optics (PO) further prove the validity and versatility of this technique for solving reflector synthesize problems.
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References
S. Silver, Microwave Antenna Theory and Design,
McGraw-Hill, New York, 1949.
A. S. Dunbar, “Calculation of Doubly Curved
Reflectors for Shaped Beams,” Proc. IRE, vol. 36,
pp.1289-1290, October 1948.
T. A. Milligan, Modern Antenna Design, John
Wiley, 2nd ed., 2005.
A. Brunner, “Possibilities of Dimensioning
Doubly Curved Reflectors for Azimuth-Search
radar Antennas,” IEEE Trans. Antennas and
Propagat., vol. AP-19, no. 1, pp. 52-57, January
M. Mizusawa, S. I. Betsudan, S. Urasaki, and M.
Iimori, “A Dual Doubly Curved Reflector
Antenna Having Good Circular Polarization
Characteristics,” IEEE Trans. Antennas and
(a) (b)
ACES JOURNAL, VOL. 26, NO. 10, OCTOBER 2011
Propagat., vol. AP-26, no. 3, pp. 455-458, May
S. Karimkashi, A. R. Mallahzadeh, and J. RashedMohassel, “A New Shaped Reflector Antenna for
Wide Beam Radiation Patterns,” IEEE
International Symposium on Microwave, Antenna,
Propagation, and EMC Technologies for Wireless
Communications, pp. 535-538, August 2007.
T. F. Carberry, “Analysis Theory for the ShapedBeam Doubly Curved Reflector Antenna,” IEEE
Trans. Antennas and Propagat., vol. AP-17, no. 2,
pp.131-138, March 1969.
F. Winter, “Dual Vertical Beam Properties of
Doubly Curved Reflectors,” IEEE Trans.
Antennas and propagat., vol. AP-19, no. 2, pp.
-180, March 1971.
J. Sletten, “Ray Tracing Method for Doubly
Curved Reflector Surfaces,” Proceeding of The
IEEE, vol. 69, no. 6, pp. 743-744, June 1981.
J. Pidanic, D. Cermak, and V. Schejbal, “Gain
Estimation of Doubly Curved Reflector Antenna,”
Radioengineering, vol. 17, no. 3, pp. 38-41,
September 2008.
S. Junhao, “On the Improvement of Shaped-Beam
Doubly Curved Reflector Antenna,” Antennas,
Propagation & EM Theory, ISAPE '06. 7th
International Symposium on, pp. 26-29, October
S. Alfonzetti, G. Borzì, E. Dilettoso, and N.
Salerno, “Stochastic Optimization of a
Patch Antenna,” Applied Computational
Electromagnetic Society (ACES) Journal, vol. 23,
no. 3, pp. 237-242, September 2008.
J. Martinez-Fernandez, J. M. Gil, and J. Zapata,
“Ultrawideband Optimized Profile
Monopole Antenna by Means of Simulated
Annealing Algorithm and the Finite
Element Method,” IEEE Trans. Antennas
Propagtion., vol. 55, no. 6, pp. 1826-
, June 2007.
A. R. Mehrabian and C. Lucas, “A Novel
Numerical Optimization Algorithm Inspired from
Weed Colonization,” Ecoogical Informatics, vol.
, pp. 355–366, 2006.
A. R. Mallahzadeh, H. Oraizi, and Z. DavoodiRad, “Application of the Invasive Weed
Optimization Technique for Antenna
Configurations,” Progress of Electromagnetics
Research PIER 52, pp.225–254, 2008.
A. R. Mallahzadeh, S. Es’haghi, and H. R.
Hassani, “Compact U-Array MIMO Antenna
Designs Using IWO Algorithm,” International
Journal of RF and Microwave Computer-Aided
Engineering., vol. 19, Issue 5, pp. 568–576,
September 2009.
B. Bahreini, A. R. Mallahzadeh, and M.
Soleimani, “Design of a Meander-Shaped MIMO
Antenna Using IWO Algorithm for Wireless
Applications,” Applied Computational
Electromagnetic Society (ACES) Journal, vol. 25,
no. 7, pp. 631-638, July 2010.
S. Pal, A. Basak, S. Das, and A. Abraham, “Linear
Antenna Array Synthesis with Invasive Weed
Optimization Algorithm,” Soft Computing and
Pattern Recognition (SoCPaR) International
Conference of, pp. 161 - 166, December 2009.
C. W. Trueman, “Three-Dimensional Geometrical
Optics Code for Indoor
Propagation,” Applied Computational
Electromagnetic Society (ACES) Journal, vol. 17,
no. 2, pp.134-144, July 2002.
