The resonant tunneling diode (RTD) has attracted much attention because of its unique negative differential resistance (NDR) characteristic, RTD increases the powerful logic function of a single gate and is more suitable to implement the threshold gates. Recently, the generalized threshold gate (GTG) and the multi-threshold threshold gate (MTTG) have been proposed, which provide the more based circuit structures of RTDs. Meanwhile, the RTD full adder circuits with GTG and MTTG circuit

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... have been proposed. In this paper, a novel full adder circuit based on RTD is proposed, compare to previous designs, the novel proposed circuit has better performance, which uses fewer devices and reduces 3.6%-11.5% power.