Analysis of a Cylindrical Dielectric Radome Covering Omnidirectional Waveguide Slot Antennas
关键词:
Slot antenna, radiation pattern, method of moments, and radome摘要
In this paper, the method of moments (MoM) is
employed to solve the elect romagnetic field integral
equation for characterizing slotted waveguide antenna
covered by a dielectric radome. Different from those
existing practical examples discussed in literature, these
structures consist of mixed conducting and homogeneous
dielectric objects. Both basis functions and testing
functions are chosen as the well-established
Rao-Wilton-Glisson (RWG) basis functions. Effects of the
radome on the slotted antenna’s radiation patterns are
analyzed and discussed.
##plugins.generic.usageStats.downloads##
参考
T. Takeshima, “X-band omnidirecrectional
double-slot array antenna,” Electron Eng., vol. 39, pp.
–621, Oct. 1967.
S. W. LÜ, “Study of properties of slot-pair in
waveguide,” ACTA Electronica Sinica, vol. 16, pp.
–107, Sept. 1988. (in Chinese)
R. W. Lyon and A. J. Sangster, “Efficient moment
method analysis of radiating slots in a thick-walled
rectangular waveguide,” Proc. Inst. Elect. Eng. Part
H, vol. 128, pp. 197–205, Aug. 1981.
A. J. Sangster and H. Wang, “Resonance properties of
omnidirectional slot doublet in rectangular
waveguide,” Electronics Letters, vol. 29, no. 1, pp.
–18, 1993.
J. Y. Li, L. W. Li, and Y. B. Gan, “Method of
moments analysis of waveguide slot antennas using
the EFIE ,” Journal of Electromagnetic Waves and
Applications, vol. 19, no. 13, pp. 1729-1748, 2005.
K. Umashankar, A. Taflove, and S. M. Rao,
“Electromagnetic scatteri ng by arbitrary shaped
three-dimensional homogeneous lossy dielectric
objcts,” IEEE Trans. on Antennas and Propagation,
vol. 34, no. 6, pp. 758–766, June 1986.
B. M. Kolundzija, “Electromagnetic modeling of
composite metallic and dielectric structures,” IEEE
Trans. on microwave theory and techniques, vol. 47,
no. 7, pp. 1021–1032, July 1999.
J. Y. Li and L. W. Li, “Electromagnetic scattering by
a mixture of conducting and dielectric objects:
analysis using method of moments,” IEEE Trans. on
Vehicular Technology, vol. 53, no. 2, pp. 514–520,
S. M. Rao, D. R. Wilton, and A. W. Glisson,
“Electromagnetic scattering by surfaces of arbitrary
shape, ” IEEE Trans. on Antennas and Propagation,
vol. 30, no. 5, pp. 409–418, May 1982


