| 摘要 |
Antenna system embodiments are provided for operation over widely-spaced communication bands. The systems include second antennas circumferentially interleaved with first antennas about a system axis. In embodiments, the first antennas are formed with beam-shaping members that enhance performance of cavity-backed slots and the second antennas provide arrays of outer patches that are excited by inner patches. The first and second patches are arranged to have orthogonal polarization for enhanced isolation.
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