| 摘要 |
<p>A method or system, suitable for driving a time modulated antenna array 14, comprises performing time switching of signals for one or more different elements 48, 50, 52 of an antenna array 14 by at least one or more optical switches 26, 28, 30. The signals may be time switched to perform pattern shaping and/or harmonic beam steering. Optical signals of different wavelengths may be optically switched with each wavelength being for a respective different antenna element, and in this event the optical signals may be wavelength division multiplexed and transmitted over an optical link 8 to the antenna elements 48, 50, 52, and the optical switching may be performed remotely from the vicinity of the antenna array 14. The antenna array 14 may comprise a two-dimensional array of antenna elements, for example a cylindrical array with rows or other groupings of the antenna elements which are suitably arranged for time modulated switching using the time switched signals.</p> |
