University of Michigan

Tanner J Douglas

Kamal Sarabandi

Adib Nashashibi

A two-port antenna system is proposed that uses a polarization-independent spatial power divider to align the beams from two orthogonally oriented dual-polarized feeds. This antenna system is compatible with fully polarimetric radar and provides high port isolation. It simultaneously provides a common aperture for transmit and receive to minimize radar parallax. The spatial power divider is designed using a combination of all-dielectric metamaterial techniques and the concept of miniaturized-element frequency selective surfaces, and is fabricated on a silicon wafer using standard microfabrication technology.

Polarization-independent spatial power divider for a two-port millimeter-wave antenna

An antenna system includes a ground and a substrate mounted on the ground. The antenna system includes a first transmitter antenna and a second transmitter antenna configured to transmit a first signal at a predetermined frequency. The first transmitter antenna has a first longitudinal axis and is mounted in a first quadrant of the substrate. The second transmitter antenna has a second longitudinal axis and is mounted in a second quadrant of the substrate. The antenna system includes a first receiver antenna and a second receiver antenna configured to receive a second signal at the predetermined frequency. The first receiver antenna has a third longitudinal axis and is mounted in a third quadrant of the substrate. The third longitudinal axis of the first receiver antenna is oriented orthogonal to the first longitudinal axis of the first transmitter antenna and the second longitudinal axis of the second transmitter antenna.

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Ann Arbor, MI, United States of America

Tanner J Douglas