Modeling Conformal Array Antennas of Various Shapes Using Uniform Theory of Diffraction (UTD)
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Modeling Conformal Array Antennas of Various Shapes Using Uniform Theory of Diffraction (UTD)Abstract
Traditionally, antennas have been designed as separate components, mounted on e.g. masts, buildings, and vehicles. Modern systems, however, require antennas to be integrated with existing structures. This paper discusses the analysis of conformally integrated array antennas using the hybrid UTD-MoM method, in particular arrays on doubly curved surfaces. Computed results are shown including singly and doubly curved surfaces. Most of the results are verified by measured results and calculated results obtained with a modal solution.
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References
D. A. Wingert and B. M. Howard, “Potential
Impact of Smart Electromagnetic Antennas on
Aircraft Performace and Design,” NATO
Workshop on Smart electromagnetic Antenna
Structures, Brussels, pp. 1.1-1.10, November
Website: http://www.stealthsite.com/index.htm,
-09-13.
L. Josefsson and P. Persson, Conformal Array
Antenna Theory and Design, Wiley-IEEE Press,
February 2006.
J. R. Wait, Electromagnetic Radiation from
Cylindrical Structures, Pergamon Press, 1959.
R. F. Harrington, Time Harmonic Electromagnetic
Fields, Prentice-Hall, 1961.
J. J. H. Wang, Generalized Moment Methods in
Electromagnetics, John Wiley & Sons, 1991.
J. Jin, The Finite Element Method in
Electromagnetics, John Wiley & Sons, 1993.
D. A. McNamara, C. W. I. Pistorius, and J. A. G.
Malherbe, Introduction to The Uniform
Geometrical Theory of Diffraction, Artech House,
P. H. Pathak, W. D. Burnside, and R. J. Marhefka,
“A Uniform GTD Analysis of the Diffraction of
Electromagnetic Waves by a Smooth Convex
Surface,” IEEE Trans. on Antennas and
Propagation, Vol. AP-28, No. 5, pp. 631-642,
September 1980.
P. H. Pathak, N. Wang, W. D. Burnside, and R. G.
Kouyoumjian, “A Uniform GTD Solution for the
Radiation from Sources on a Convex Surface,”
IEEE Trans. on Antennas and Propagation, Vol.
AP-29, No. 4, pp. 609-622, July 1981.
P. H. Pathak and N. Wang, “Ray analysis of
Mutual Coupling Between Antennas on a Convex
Surface,” IEEE Trans. on Antennas and
Propagation, Vol. AP-29, No. 6, pp. 911-922,
November 1981.
P. Persson and R. G. Rojas, “High-frequency
Approximation for Mutual Coupling Calculations
Between Apertures on a Perfect Electric
Conductor Circular Cylinder Covered with a
Dielectric Layer: Nonparaxial Region,” Radio
Science, Vol. 38, No. 4, 2003.
B. Thors and R. G. Rojas, “Uniform Asymptotic
Solution for the Radiation from a Magnetic
Source on a Large Dielectric Coated Circular
Cylinder: Non-paraxial Region,” Radio Science,
Vol. 38, No. 5, 2003.
Z. Sipus, P.-S. Kildal, R. Leijon, and M.
Johansson, “An Algorithm for Calculating
Green’s Function of Planar, Cylindrical and
Spherical Multilayer Substrates,” ACES Journal,
Vol. 13, No.3, pp. 243-254, Nov. 1998.
C. A. Macon, L. C. Kempel, and S. W. Schneider,
“Modeling Cavity-Backed Apertures Conformal
to Prolate Spheroids Using the Finite Element-
Boundary Integral Technique,” IEEE AP-S Intern.
Symp., pp. 550-553, 2002.
J. Boersma and S. W. Lee, “Surface Field due to a
Magnetic Dipole on a Cylinder: Asymptotic
Expansion of Exact Solution,” Electromagnetics
Laboratory, Technical Report No. 78-17,
University of Illinois, December 1978.
E. K. Yung, S. W. Lee, and R. Mittra, “GTD
Solution of the Input Admittance of a Slot on a
Cone,” IEEE AP-S. Intern. Symp., Vol. 17, pp.
-670, 1979.
T. S. Bird, “Accurate Asymptotic Solution for the
Surface Field due to Apertures in a Conducting
Cylinder,” IEEE Trans. on Antennas and
Propagation, Vol. AP-33, pp. 1108-1117, October
G.-X. Fan and J. M. Jin, “Scattering from a
Cylindrically Conformal Slotted Wavegudie
Array Antenna,” IEEE Trans. on Antennas and
Propagation, Vol. 45, pp. 1150-1159, July 1997.
D. J. Struik, Lectures on Classical Differential
Geometry, Second edit., Dover Publications, Inc.,
R. M. Jha, S. A. Bokhari, V. Sudhakar, and P. R.
Mahapatra, “Closed Form Surface Ray Tracing on
Ogival Surfaces,” 1989 IEEE AP-S Intern. Symp.,
pp. 1294-1297, June 26-30, 1989.
R. M. Jha and W. Wiesbeck, “The Geodesic
Constant Method: A Novel Approach to
Analytical Surface-Ray Tracing on Convex
Conducting Bodies,” IEEE Antennas and
Propagation Magazine, Vol. 37, No. 2, pp. 28-
, April 1995.
R. M. Jha, S. A. Bokhari, V. Sudhakar, and P. R.
Mahapatra, “Geodesic Splitting on General
Paraboloid of Revolution and its Implications to
the Surface Ray Analysis,” 1989 IEEE AP-S
Intern. Symp., pp. 223-226, June 26-30, 1989.
R. C. Hansen, Phased Array Antennas, John
Wiley & Sons, 1998.
P. Persson and L. Josefsson, “Calculating The
Mutual Coupling Between Apertures on a Convex
Circular Cylinder Using a Hybrid UTD-MoM
Method,” IEEE Trans. on Antennas and
ACES JOURNAL, VOL. 21, NO. 3, NOVEMBER 2006
Propagation, Vol. AP-49, No. 4, pp. 672-677,
April 2001.
T. N. Kaifas, T. Samaras, K. Siakavara, and J. N.
Sahalos, “A UTD-OM Technique to Design Slot
Arrays on a Perfectly Conducting Paraboloid,”
IEEE Trans. on Antennas and Propagation, Vol.
, No. 5, pp. 1688-1698, May 2005.
P. Persson, L. Josefsson, and M. Lanne,
“Investigation of the Mutual Coupling between
Apertures on Doubly Curved Convex Surfaces:
Theory and Measurements,” IEEE Trans. on
Antennas and Propagation, Vol. AP-51, No. 4,
pp. 682-692, April 2003.


