| 摘要 |
A wholly optically controlled phased array transmitter with integration of tunable optoelectronic oscillators and optical time delay networks based on multi-wavelength optical sources and optical true time delay units, comprises: a multi-wavelength optical source, a first wavelength division multiplexer, a first optical splitter, a first electro-optic modulator, a second optical splitter, a first optical amplifier, a first optical time delay network, a photoelectric detector, an electric amplifier, a DC break, a second electro-optic modulator, a second optical amplifier, a second optical time delay network, an optical combiner, a second wavelength division multiplexer, a length of optical fiber, a photoelectric detector array, a transmitting and receiving component array, a microwave antenna array, a 1×2 optical switch, a 2x2 optical switch, a circulator, a third wavelength division multiplexer, a precise length of optical fiber, and a faraday rotation mirror. The present invention has the advantages of being ultra wideband and having no aperture effect of an optically controlled phased array radar, in addition to being capable of working under different microwave frequencies and of quick frequency hopping, plus structure compactness and low cost. |
