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September 2009 [Components] Oscillator Cuts Phase Noise To -145 dBc/Hz At 10 kHz When evaluating choices for a microwave source with low phase noise, designers are generally limited to a phaselocked- loop (PLL) multipliedcrystal, yttrium-iron-garnet (YIG), dielectric-resonator (DRO), surface-acoustic-wave (SAW)-based, or sapphireloaded- cavity oscillator. To fulfill applications in which space savings and portability are required, however, a new option emerged in the form of an opto-electronic oscillator (OEO) from... August 2009 [Components] Synthesizer Merges Fast Switching With Low Phase Noise Frequency synthesizers come in many configurations—but often with performance tradeoffs. Phase Matrix’s QuickSyn challenges traditional performance expectations with frequency switching speed of 100 s and phase noise of –150 dBc/Hz at 10 kHz offset from the carrier. This synthesizer covers 0.1 to 10 GHz with resolution down to 0.001 Hz. It delivers output levels from –25 to +15 dBm. Aside from frequency coverage and resolution, a... |
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