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Study of a direct transfer junction between a
coaxial line and a rectangular waveguide based on the magnetic
coupling principle.
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Design and construction of a complete S-band
microwave test bench for microwave measurements.
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Theoretical and experimental studies on the
properties of different types of microwave antennas incorporating
microwave transistors.
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Design and measurement of 8-element and
11-element arrays to achieve required radiation properties. Design
of wide-band feed network suitable for superdirective arrays was
investigated.
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Studies on the generation of efficient and
realizable super directive array functions using a newly developed
optimized polynomial approach.
-
Theoretical and experimental studies on the
generation and realization of antenna radiation patterns with
arbitrarily low side lobe levels.
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Design and realization of efficient super
directive end fire antenna arrays.
The application of the super directive array function generation to
the design of adaptive arrays.
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Measurements of the complex refractive index
of soils and air-borne particles.
Improving the low-frequency performance of microwave anechoic
chambers using signal processing techniques.
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Design and testing of underwater digital
acoustic communication systems.
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Influence of fading on the probability of
error in multipath channels.
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Design and testing of coding systems for
underwater acoustic communications.
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Enhancement of antenna array performance
through the use of tapped delay lines.
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Adaptive array pattern nulling using element
position perturbations.
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Applications of genetic algorithms to adaptive
arrays and nulling techniques.
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Applications of genetic algorithms to the
tuning of power systems.
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Measurement and management of electric and
magnetic fields at power frequency and their effects on human
health.
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Effects of electromagnetic waves at high
frequencies and microwaves on human health.
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Applications of tabu search to adaptive arrays
and nulling techniques.
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Null steering and pattern control in smart
antenna systems
