MODELING OF CIRCULAR ANTENNA ARRAY WITH CYCLIC PHASE DISTRIBUTION ON THE
ELEMENTS
A. A.
Babaskin1,
V. I. Kalinichev2
1
RF Mtech, Seoul, South Korea
2
Kotel’nikov Institute of Radio-engineering and Electronics of RAS
The paper is received on February 24, 2014
Abstract.
Two-port two-polarized patch antenna design is proposed and modeled as an
element of a circular antenna array. Frequency and radiation characteristics of
such antenna are obtained. Nine-element circular antenna array with cyclic phase
distribution on the patch elements is modeled. Radiation characteristics of
modes with different orbital angular momentum are considered. It is shown that
the direction of radiation in the elevation changes in a relatively wide angular
range depending on the mode number and speed of phase rotation along the array.
Possibility of use of this effect for scanning by a vortex beam in hemisphere is
noted.
Keywords:
patch antenna, circular antenna array,
orbital angular momentum, vortex-like beam, scanning in hemisphere.