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Sampling phase detector using a resonant tunneling high electron mobility transistor for microwave phase-locked oscillators

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6 Author(s)
Okazaki, H. ; NTT Wireless Syst. Labs., Kanagawa, Japan ; Nakagawa, T. ; Muraguchi, M. ; Fukuyama, H.
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A novel sampling phase detector (SPD) using a resonant-tunneling high electron mobility transistor (RTHEMT), which features strong nonlinear characteristics, is proposed and demonstrated as a means of achieving a simple, low-power-consumption SPD. We confirmed promising performance for an RTHEMT as a simple pulse generator in an SPD with low power consumption, even for a low reference-signal input level. An 11-GHz phase-locked oscillator is constructed along with the present SPD, and successfully phase-locked signals are obtained with it. These results clearly show the potential of constructing high-performance analog RF circuits based on RTHEMTs.

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Very Large Scale Integration (VLSI) Systems, IEEE Transactions on  (Volume:6 ,  Issue: 1 )