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The design and optimization of very broadband integrated lens antennas (ILAs) constitutes one of the future trends in lens antenna field. To this end we investigate numerically the radiation performance of millimeter wave ILAs coated with multiple anti reflection layers. We propose lens structures of moderate size (four wavelengths in diameter at the center frequency) and made from a dense dielectric...
We have shown that a single antenna array excited by two different feed networks and illuminating a shaped substrate lens enables one to generate two radio coverage by properly shaping the lens profile and optimizing the array parameters (number of elements, amplitude of excitation, inter-element spacing). This concept has been successfully applied to SRR / LRR sensors. Antenna prototypes are under...
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