Mixed (Analog-digital) VLSI circuits
and systems, particularly, filters, variable gain amplifiers,
oscillators and data converters. Practical applications include channel
select filters for fifth generation (5G)
mobile phone, short range wireless standards (such as Bluetooth and
WLAN) and Digital Video Broadcasting-Handheld (DVB-H) receivers. Recent
interests include circuit techniques for biomedical instrumentation
systems, and energy harvesting.