The “Circuit and Signal Processing” Section provides full coverage of all topics of interest involved in the areas of circuit and signal processing.

The primary focus of the Section is on the analysis, modeling, design, simulation, and implementation of electronic circuits and signal processing algorithms, covering fundamental theory, engineering realization, measurement and reliability evaluation. The Section will also serve to attract research concerning the application of circuit and signal processing architectures and methodologies for emerging research topics, such as IoT systems, radio‑frequency devices, biomedical electronics, low‑power AI hardware, multimedia signal processing, and edge signal analysis, among others.

You have free and unlimited access to the full texts of all of the open access articles published in our journal. We welcome you to read our most cited papers published in 2025, as listed below.

1. “FEM-Based Modelling and AI-Enhanced Monitoring System for Upper Limb Rehabilitation”
by Filippo Laganà, Diego Pellicanò, Mariangela Arruzzo, Danilo Pratticò, Salvatore A. Pullano and Antonino S. Fiorillo
Electronics 2025, 14(11), 2268; https://doi.org/10.3390/electronics14112268
Available online: https://www.mdpi.com/2079-9292/14/11/2268

2. “WaveCORAL-DCCA: A Scalable Solution for Rotor Fault Diagnosis Across Operational Variabilities”
by Nima Rezazadeh, Mario De Oliveira, Giuseppe Lamanna, Donato Perfetto and Alessandro De Luca
Electronics 2025, 14(15), 3146; https://doi.org/10.3390/electronics14153146
Available online: https://www.mdpi.com/2079-9292/14/15/3146

3. “Development of an IoT-Enabled Smart Electricity Meter for Real-Time Energy Monitoring and Efficiency”
by Hugo O. Garcés, Julio Godoy, Giorgio Riffo, Neil F. Sepúlveda, Eduardo Espinosa and Mohamed A. Ahmed
Electronics 2025, 14(6), 1173; https://doi.org/10.3390/electronics14061173
Available online: https://www.mdpi.com/2079-9292/14/6/1173

4. “PDS-YOLO: A Real-Time Detection Algorithm for Pipeline Defect Detection”
by Ke Zhang, Longxiao Qin and Liming Zhu
Electronics 2025, 14(1), 208; https://doi.org/10.3390/electronics14010208
Available online: https://www.mdpi.com/2079-9292/14/1/208

5. “Methods and Approaches for User Engagement and User Experience Analysis Based on Electroencephalography Recordings: A Systematic Review”
by Christos Bellos, Konstantinos Stefanou, Alexandros Tzallas, Georgios Stergios and Markos Tsipouras
Electronics 2025, 14(2), 251; https://doi.org/10.3390/electronics14020251
Available online: https://www.mdpi.com/2079-9292/14/2/251

6. “Autonomous Textile Sorting Facility and Digital Twin Utilizing an AI-Reinforced Collaborative Robot”
by Torbjørn Seim Halvorsen, Ilya Tyapin and Ajit Jha
Electronics 2025, 14(13), 2706; https://doi.org/10.3390/electronics14132706
Available online: https://www.mdpi.com/2079-9292/14/13/2706

7. “Designing and Optimizing a 2.4 GHz Complementary Metal–Oxide-Semiconductor Class-E Power Amplifier Combining Standard and High-Voltage Metal–Oxide-Semiconductor Field-Effect Transistors”
by Roberto Cancelli, Gianfranco Avitabile and Antonello Florio
Electronics 2025, 14(6), 1135; https://doi.org/10.3390/electronics14061135
Available online: https://www.mdpi.com/2079-9292/14/6/1135

8. “Miniaturized Patch Array Antenna Using CSRR Structures for 5G Millimeter-Wave Communication Systems”
by Abderraoufe Zerrouk, Mohamed Lamine Tounsi, Tan Phu Vuong, Nicolas Corrao and Mustapha C. E. Yagoub
Electronics 2025, 14(9), 1834; https://doi.org/10.3390/electronics14091834
Available online: https://www.mdpi.com/2079-9292/14/9/1834

9. “Direct Interface Circuits for Resistive, Capacitive, and Inductive Sensors: A Review”
by Geu M. Puentes-Conde, Ernesto Sifuentes, Javier Molina, Francisco Enríquez-Aguilera, Gabriel Bravo and Guadalupe Navarro Enríquez
Electronics 2025, 14(12), 2393; https://doi.org/10.3390/electronics14122393
Available online: https://www.mdpi.com/2079-9292/14/12/2393

10. “Evaluation of Dynamic On-Resistance and Trapping Effects in GaN on Si HEMTs Using Rectangular Gate Voltage Pulses”
by Pasquale Cusumano, Alessandro Sirchia and Flavio Vella
Electronics 2025, 14(14), 2791; https://doi.org/10.3390/electronics14142791
Available online: https://www.mdpi.com/2079-9292/14/14/2791