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Bi-dimensional bi-periodic centred-fed microstrip leaky-wave antenna analysis by a source modal decomposition in spectral domain

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2 Author(s)
Mekkioui, Z. ; Fac. of Sci., Dept. of Phys., Univ. of Tlemcen, Tlemcen, Algeria ; Baudrand, H.

A novel source modal decomposition in spectral domain is used to analyse the radiation from a finite bi-dimensional (2-D) omnidirectional centred-fed microstrip leaky-wave antenna (LWA). The driving element of the 2-D microstrip LWA induces the excitation of surface waves along (Ox) and (Oy) directions. Thus, the 2-D structure can be modelled as a phased array antenna. The electric integral equation in the spectral domain is reduced to simple expressions by using the admittance operator, based on a simple transverse equivalent network taking into account all the antenna characteristics and the central excitation. Several numerical results are given for a 2-D structure operating in a large frequency range.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:3 ,  Issue: 7 )