Ultra wide band radiation
system on the base of
linear array of Vivaldi
antennas for
multi-beam hybrid antennas
S. E. Bankov
1,
M. D. Duplenkova 2, V. A. Kaloshin
1
1 Kotelnikov
Institute of Radio-engineering and Electronics of RAS
2
National Research University "MPEI"
The paper is received on on December
10, 2015
Abstract.
Characteristics of an
infinite linear array of Vivaldi antennas in regime of excitation of the array
element are investigated. A problem of calculation of Floquet channel
scattering matrix for different values of phase shift between fields in
neighboring array elements is solved with using of finite elements method.
Phase and amplitude radiation pattern of the array element are calculated in
frame of theory of infinite antenna arrays. Shape of radiation pattern and
position of its phase center are analyzed in the wide frequency range. A
possibility of a cluster type radiator design using a set of the array active
elements to obtain a given level of beams intersection and a high level of
efficiency of a multi-beam antenna is shown.
Keywords:
antenna array, Vivaldi antenna, wide
frequency range, Floquet channel.