A new floating memcapacitor emulator circuit without using passive elements

In this paper, a new floating memcapacitor emulator that consists of a single multiplier and only four transistors without using passive elements is proposed. While two of these transistors work as MOS capacitors, two of them are used to provide transconductance gain. Moreover, the proposed memcapacitor operates at high frequencies thanks to having simple structures. Furthermore, fix and variable parts of memcapacitance can be tuned electronically by changing DC bias voltages. In order to investigate the performance of the proposed memcapacitor, simulation results are given for different operating frequencies, radical temperature changes, memory effects, and Monte Carlo analysis. Moreover, to confirm the practical realization of the proposed memcapacitor, the proposed floating memcapacitor is implemented by using commercial devices as AD633, ALD1106, and ALD1107. Experimental results of the proposed circuit are given for different operating frequencies and DC supply voltages. Also, a memcapacitor-based circuit that emulates the relationship between the amoeba's locomotive speed and temperature is given as an application of the proposed memcapacitor. The results for the proposed memcapacitor are in good agreement with theoretical data. © 2024 John Wiley & Sons Ltd.