Frequency multiplication is essential in wireless communication systems, where stable high-frequency oscillations are required. However, multipliers typically employ power- and area-hungry filtering and amplification circuits. Here, we show that a single ferroelectric field-effect transistor, made from ferroelectric hafnium oxide, can be used as a full-wave rectifier and frequency doubler. This is achieved by using the parabolic shape of the transistor’s transfer characteristics, which can be tailored by accurately tuning the partial polarization switching and the band-to-band tunnelling drain current. Due to the reversible polarization switching, our approach is fully reconfigurable, allowing either multiplication or simple transmission of the input frequency to be activated within a single ferroelectric transistor. With our devices, we also implement two practical cases of the frequency modulation scheme without any additional filtering circuits.

在需要稳定的高频振荡的无线通信系统中，倍频至关重要。然而，乘法器通常采用耗电和耗电的滤波和放大电路。在这里，我们显示了由铁电氧化ha制成的单个铁电场效应晶体管可以用作全波整流器和倍频器。这是通过使用晶体管的传输特性的抛物线形来实现的，该特性可以通过精确地调整部分极化开关和带间隧穿漏极电流来定制。由于可逆极化切换，我们的方法是完全可重新配置的，从而允许在单个铁电晶体管中激活输入频率的乘法或简单传输。使用我们的设备，