Antenna control and optimization
Article Abstract:
Several common themes arise to the question of the physical forms of antennas that transmit or receive electromagnetic energy take on, which can be controlled or optimized in performance through a mathematical formulation that serves as a framework for study. A common problem in antenna class optimization is arrays of elementary radiators, but the focus here is on closed three-dimensional bodies. By treating the antenna as an entire body, the question of determining the surface current distribution for optimizing antenna performance comes into focus. The particular mathematical models presented clarify theoretical limits and are useful in engineering design.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1991
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Antenna pulsewidth distortion paradox explained
Article Abstract:
There is no pulsewidth distortion from an antenna array that is receiving or transmitting a wide bandwidth chirp waveform, though there is when a narrow pulse is received at an off-boresite angle. The lack of pulsewidth distortion is a consequence of the pulsewidth distortion being eliminated by a linear variance of the differential phase shifts of each of the antenna elements. This can be accomplished by the use of a 3- or 4-bit phase shifter.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1988
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Spectral self-coherence restoral: a new approach to blind adaptive signal extraction using antenna arrays
Article Abstract:
A new approach to blind adaptive signal extraction and a new class of algorithms, spectral self-coherence restoral (SCORE) algorithms, are presented. Three new adaptive processors, the least-squares SCORE processor, the cross-SCORE processor, and the auto-SCORE processor, are developed, analyzed, and simulated. The SCORE approach is shown to provide a promising alternative to existing blind adaptation techniques.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1990
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