Analysis of a dual-periodic slotted waveguide array with frequency-phase beam scanning capabilities
V. I. Kalinichev1
, A. A. Babaskin
1 Kotelnikov Institute of Radio Engineering
and Electronics RAS
The paper is received on February 2, 2016
Abstract. A model is proposed for the numerical analysis of the
propagation constant of the leaky mode in a dual-periodic array of rectangular
waveguides with slots in the broad wall. The real and imaginary parts of the
propagation constant depending on the frequency are computed for different
phase shifts between adjacent waveguides. Comparison with the propagation constant of the leaky mode in the
linear one-dimensional array is given. It is shown that
the frequency dependences of the phase and attenuation constants have specific features at certain phase shifts. The angular coordinates of the
beam in space and the 2D scanning range are calculated with changing the frequency and phase shift in the considered bounds.
arrays, slotted waveguides, leaky
mode, 2D beam scanning.