EAN: 9789812877833

SPRINGERBRIEFS IN ELECTRICAL AND COMPUTER ENGIN...

This book presents the detailed analytical formulation for the RCS of parallel-fed linear
dipole array in the presence of mutual coupling. The radar cross section (RCS) of an object
represents its electromagnetic (EM) scattering properties for a given incident wave. The
analysis of scattered field is critical in military and defence arenas  especially while
designing low-observable platforms. It is well-known that the presence of an antenna array on
the target influences its echo area significantly. The primary cause for such scattering of the
incident signals is reflection that occurs within the antenna aperture and its feed network. In
this book  the RCS estimation is done based on the signal path within the antenna system. The
scattered field is expressed in terms of array design parameters including the reflection and
transmission coefficients. The computed results show the variation in the RCS pattern with and
without mutual coupling. The effect of finite dipole-length  inter-element spacing  scan angle
array configuration  amplitude distribution and terminating load impedance on the RCS pattern
is studied. It is shown that the array RCS can be controlled by choosing optimum design
parameters  including terminating impedance and geometric configuration. This book explains
each step of the RCS estimation and analysis of dipole array with detailed schematics  tables
and illustrations. Moreover  it includes parametric analysis of RCS estimation and control.
This book provides an insight into the phenomenon of scattering within the phased array system.

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