An Approximate Method for Analysis of Azimuthally Magnetized Circular Ferrite Waveguide Phase Shifter
Conf. Proc. 2006 1st Europ. Conf. Antennas Propagat. EUCAP 2006, Nice, France, Nov. 6-10, 2006, In CD.
A theorem for the identity of some purely imaginary zeros of a certain complex, and of some real ones of a specific real Kummer functions 1F1(a,c;x) is proved numerically. Employing this theorem and some known Tricomi formulae, an approximate expression is obtained, giving the numbers L(c,n) by the zeros of definite Bessel functions. Using it, a simple method is developed for reckoning the differential phase shift produced by the azimuthally magnetized circular ferrite waveguide.
approximate methods, circular ferrite waveguide phase shifters, L numbers, numerical analysis
Природни науки, математика и информатика
Natural sciences, mathematics and informatics