Abstract
This work develops a CMOS active delay line for microwave CW signals. The novel active delay line is mainly based on an injection-locking (IL) technique. The delay of the input signal is linear adjusted with various injection conditions. Comparing with conventional passive or active delay lines, the proposed active delay line has a wider delay tuning range and a higher gain. The implemented CMOS delay line achieves a wide operating range of 2 ∼ 2.6 GHz with very wide delay tuning range from 45∼220 ns. The power consumption is lower than 7.2 mW.
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