IET Circuits, Devices & Systems covers the following topics:

Circuit theory and design, circuit analysis and simulation, computer aided design
Filters (analogue and switched capacitor)
Circuit implementations, cells and architectures for integration including VLSI
Testability, fault tolerant design, minimisation of circuits and CAD for VLSI
Novel or improved electronic devices for both traditional and emerging technologies including nanoelectronics and MEMs
Device and process characterisation, device parameter extraction schemes
Mathematics of circuits and systems theory
Test and measurement techniques involving electronic circuits, circuits for industrial applications, sensors and transducers