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- C.N. Georgiev, M. N. Georgieva-Grosse
- IEEE Antennas and Wireless Propagation Letters
- 2003

It is proved numerically that if k /spl rarr/ -/spl infin/, the products |k|/spl zeta//sub k,n//sup (c)/ and |a|/spl zeta//sub k,n//sup (c)/, where /spl zeta//sub k,n//sup (c)/ is the nth positive… (More)

- M. N. Georgieva-Grosse, G. N. Georgiev
- 2012 International Conference on Electromagnetics…
- 2012

The notion characteristic parameter λ=λ(ρ, r̅<sub>0</sub>, |α|) of the azimuthally magnetized coaxial ferrite waveguide phase shifter, operating in the normal TE<sub>01</sub> mode, is introduced by… (More)

- M. N. Georgieva-Grosse, G. N. Georgiev
- 2013 7th European Conference on Antennas and…
- 2013

The concepts for differential phase characteristics, area of phase shifter operation and phase shifting diagram of the coaxial ferrite waveguide with azimuthal magnetization for the normal TE01 mode,… (More)

- G. N. Georgiev, M. N. Georgieva-Grosse
- 2012 International Conference on Electromagnetics…
- 2012

A review of some of the modern methods for investigation of the phase behaviour of the azimuthally magnetized circular ferrite waveguide, under normal TE<sub>0n</sub> modes excitation, is presented.… (More)

- M. N. Georgieva-Grosse, G. N. Georgiev
- 2012 International Conference on Electromagnetics…
- 2012

A method for computation of the positive purely imaginary roots of the characteristic equation of the circular waveguide with a ferrite cylinder of azimuthal magnetization and a dielectric toroid,… (More)

- G. N. Georgiev, M. N. Georgieva-Grosse
- 2008 Proceedings of the International Conference…
- 2008

The theorem for existence and for the basic properties of the L(c, n) numbers (positive real numbers, coherent with the positive purely imaginary zeros zetak, n (c) in x of the complex Kummer… (More)

- M. N. Georgieva-Grosse, G. N. Georgiev
- 2012 6th European Conference on Antennas and…
- 2012

The borderlines of the area in which the circular waveguide, entirely filled with azimuthally magnetized ferrite, works as a phase shifter for the normal TE01 mode, are determined. For the purpose… (More)

- M. N. Georgieva-Grosse, G. N. Georgiev
- 2012 XVIIth International Seminar/Workshop on…
- 2012

The Kummer function method is one of the most promising tools for investigation of normal and slow TE0n modes in the circular waveguides, loaded with co-axially positioned azimuthally magnetized… (More)

- G. N. Georgiev, M. N. Georgieva-Grosse
- 2006 First European Conference on Antennas and…
- 2006

A theorem for the identity of purely imaginary zeros of a certain complex Kummer function Phi(a, c; x) in x and of the real ones of a specific real Kummer function in x is proved numerically provided… (More)

- G. N. Georgiev, M. N. Georgieva-Grosse
- International Conference on Mathematical Methods…
- 2002

The real Kummer function, the ordinary and modified difference Bessel functions are applied to derive the characteristic equation of slow TE/spl circ//sub 0n/spl circ// modes in the circular… (More)