Title :
A note on double edge diffraction for parallel wedges
Author :
Ivrissimtzis, L.P. ; Marhefka, R.J.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
10/1/1991 12:00:00 AM
Abstract :
An extended spectral theory of the diffraction approach is used in the investigation of double-edge diffraction in the near-field region of a parallel wedge geometry illuminated by a cylindrical wave. A high-frequency approximation can be formulated in terms of a canonical double stationary phase integral. A uniform asymptotic reduction of the latter, using the method of D.S. Jones (1971), results in a compact representation involving the generalized Fresnel integral, with certain advantages in numerical applications over past representations
Keywords :
electromagnetic wave diffraction; canonical double stationary phase integral; cylindrical wave illumination; double edge diffraction; electromagnetic diffraction; extended spectral theory; generalized Fresnel integral; high-frequency approximation; near-field region; parallel wedges; Antenna arrays; Antennas and propagation; Convolution; Design methodology; Directional antennas; Linear antenna arrays; Physical theory of diffraction; Planar arrays; Signal analysis; Speech processing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
