MMA Memo 207: Wide Bandwidth, YIG-Based Sources and Modern Frequency Multipliers for the MMA Local Oscillator System
نویسنده
چکیده
The conventional approach to generating local oscillator (LO) power for millimeterand submillimeter-wave heterodyne mixers is to generate power at a lower frequency using a suitable phase-locked source, and to convert this power to the desired commensurate frequency using a nonlinear diode such as a varactor in a frequency multiplier circuit. Although useful for single-dish telescope receiver systems, the conventional approach, using current state-of-the-art components, is highly impractical for large array-type radio telescopes for which manageable cost and high reliability are important factors.
منابع مشابه
Mma Project Book, Chapter 7 Section 2 Local Oscillators: Multiplier System Table 7.2.1 Lo Multiplier System Specifications Item Specification Power Output ~100 Microwatts per Receiver
This section describes a Local Oscillator (LO) system using modern multiplier chains. The conventional approach to generating local oscillator (LO) power for millimeter and submillimeter wave heterodyne mixers is to generate power at a lower frequency using a suitable phase-locked source, and to convert this power to the desired commensurate frequency using a nonlinear diode such as a varactor ...
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