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The High Sierra Microwave comb/marker generator (CMG) consists of a novel, very low current impulse generator design, which generates a narrow impulse containing high orders of harmonics. Also included is a high stability internal crystal oscillator or provision for an external input signal to drive the impulse generator circuit along with input voltage conditioning and regulator circuits.
Traditional impulse generator design uses a step recovery diode (SRD) to generate harmonic content. While SRDs can generate harmonics with high power levels they typically require 0.5 to 1 watt of drive power at the clock frequency.
The impulse generator we have developed can provide usable harmonics to beyond 18 Ghz with just milliwatts of drive power. While the power levels in the harmonics are lower than those obtained with the traditional SRD approach, it still provides usable harmonic power levels, but with the distinct advantage of requiring very low currents, which opens up portable and power sensitive applications. Our high efficiency impulse generator design can provide economical, low power consumption solutions for:
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