Abstract
QCA technology presented as a new paradigm to replace CMOS technology in the nanoscale. QCA technology represents binary information by cell polarization, not as a voltage level. The basic blocks in QCA technology are the majority gate and inverter. Efficient building blocks are important to get whole efficient circuits. This article aims to present novel configurations for the inverter block that offer advantages in terms of temperature tolerance, cell count, and area efficiency. Moreover, a Repeater gate with high efficiency is proposed to demonstrate their versatility. The proposed inverter has efficient improvements by 2%, 4.4%, 11%, and 17.5% over the best-reported inverter block at 10 K, 100 K, 150 K, and 200 K, respectively. The circuits presented in this study were designed and validated using QCADesigner software v 2.0.3, and the energy consumption of the proposed designs was assessed using QCAPro tools.
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