Endwave Defense Systems has announced the release of their YIG (Yttrium Iron Garnet) frequency sources with high spectral purity needed for FMCW radar, microwave point-to-point radio and instrumentation applications. Aside from their low close-in noise characteristic, they provide large tunable bandwidths in comparison to Dielectric Resonator Oscillators (DRO). Endwave provides YIGs up through Ku-Band, and these high fundamental frequencies also minimize spurious signals in advanced radars. Proprietary shock-mounting techniques minimize microphonics.

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Endwave's latest YIGS are available in 2 configurations, Micro-YIG and Mini-YIG, to address a range of packaging and operating parameters. These YIG Oscillators can be operated in an unlocked free-running mode, providing phase noise better than -105 dBc/Hz at 10 kHz offset, and -128 dBc/Hz at 100 kHz offset. In addition, these Local Oscillators can be combined with phase-locked loop circuitry to form full synthesizer solutions.

The Mini-YIG Oscillator Features broad tunable BW of ± 1 GHz, frequency output of 3 GHz to 11 GHz, typical Pout of +14.5 dBm buffered, +8.5 V bias at 100 mA and a SMA connectorized, square package.

The Micro-YIG Oscillator Features a tunable BW of ± 450 MHz, a frequency output of 3 GHz to 10 GHz, +8.5 V bias at 70 mA (buffered), a Pout of +3 dBm unbuffered / +10 dBm buffered and a SMA connectorized, circular package.