Photonic Local Oscillator System
نویسندگان
چکیده
Recent commercial developments in the optical fiber industry have raised the possibility of supplying the local oscillator signal for the MMA by generating two optical signals differing in frequency by the required local oscillator frequency. These two optical signals may then be transmitted over a single optical fiber to each antenna. Within the receiver dewar, the two optical signals are mixed in a photodetector and the resultant millimeter-wave frequency difference supplies the local oscillator power. Table 7.1 Principal milestones for photonic local oscillator.
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