Title:
Evaluation of a Double-Shell Integrated Scanning Lens Antenna
Author(s):
Jorge R. Costa, Mário G. Silveirinha, Carlos A. Fernandes
Source:
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Vol./Issue/Date:
VOL. 7, 2008
Year:
2008
Page(s):
781 - 784
Keywords:
Integrated lens antennas, millimeter and submillimeter
wave antennas, scanning antennas, shaped beam antennas
Abstract:
This letter presents the design and evaluation of a
high dielectric constant double-material integrated lens antenna
for multibeam or scanning applications. The lens is formed by
two shaped embedded shells of different material permittivity to
enhance both power transmission across the lens interfaces and
the lens scanning characteristics over a broad frequency range,
when the feeds are integrated at the lens base. Design is based on
geometrical optics formulation and the lens performance is evaluated
using the classic hybrid geometrical optics/physical optics
approach (GO/PO). The proposed lens concept is experimentally
validated with a fabricated MACOR™/acrylic prototype, showing
less than 1-dB scan loss up to ?? with Gaussicity better than
95% over 40% frequency band at millimeter waves.
Document:
Reference Id:
480
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