Miljanović Dejan, Potrebić Ivaniš Milka, Marković Ivo
Faculty of Technical Sciences, European University, 76100 Brcko, Bosnia and Herzegovina.
School of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, P.O. Box 35-54, 11120 Belgrade, Serbia.
Micromachines (Basel). 2025 Jun 30;16(7):777. doi: 10.3390/mi16070777.
This paper presents a dual-band bandpass filter with passband switchability controlled by using memristors. The memristor is a good choice as a control element due to its characteristics, such as low-power consumption, no bias needed, good electrical characteristics, and no moving parts. The filter's reconfigurability is achieved by using memristors to selectively connect filter elements to ground. For the filter realization, multilayer technology with quasi-lumped elements has been chosen because of filter size miniaturization. Circuit-level simulations were initially used for quick analysis, followed by 3D EM simulations to validate the expected functionality of the proposed design concept. The results confirm the feasibility of a very small dual-band bandpass filter with independently controllable passbands. The frequency response of each of the two passbands (3.5 GHz and 5.8 GHz) can be tuned with negligible impact on the other passband by controlling the states of the memristors. The filter footprint area is equal to 0.10 λ × 0.12 λ, where λ is the guided wavelength at 3.5 GHz.
本文提出了一种通过使用忆阻器控制通带可切换性的双频段带通滤波器。忆阻器因其低功耗、无需偏置、良好的电气特性以及无活动部件等特性，是作为控制元件的理想选择。该滤波器的可重构性是通过使用忆阻器有选择地将滤波器元件接地来实现的。为了实现滤波器，由于滤波器尺寸小型化，选用了具有准集总元件的多层技术。最初使用电路级仿真进行快速分析，随后进行三维电磁仿真以验证所提出设计概念的预期功能。结果证实了具有独立可控通带的超小型双频段带通滤波器的可行性。通过控制忆阻器的状态，可以对两个通带（3.5GHz和5.8GHz）中的每一个的频率响应进行调谐，而对另一个通带的影响可忽略不计。滤波器占用面积等于0.10λ×0.12λ，其中λ是3.5GHz时的导波波长。
