Names, photographs and brief biographies for the members of the Plextek RFI management team.

Liam Devlin – CEO


Liam became CEO of Plextek RF Integration (now Plextek RFI Ltd.) in November 2012 when it was formed from the RF Integration Group of Plextek Ltd. Liam originally joined Plextek in 1996 and was Director of the RF Integration Group. He has led the design and development of over 100 custom ICs on a range of GaAs, GaN and Si processes at frequencies from baseband to 90GHz. He has also developed microwave and mm-wave sub-systems using a variety of technologies from conventional SMT on laminate substrates to chip and wire assemblies. He also serves as a MMIC expert witness (GaAs, GaN and Si) and provides expert witness advice for other RF, microwave and mm-wave technologies. Prior to joining Plextek he was Chief Designer with GEC-Marconi Caswell where he designed GaAs ICs for both the commercial product line and for customer specific applications. Prior to this, Liam was employed by Philips Research Laboratories. He graduated from Leeds University in 1988 with a first class honours degree in electrical and electronic engineering and has published over 40 technical papers.

Contact Liam via email:icon_mailto Liam Devlin

Ian Murphy – Chairman

Ian Murphy is Chairman of Plextek RFI and co-founder and Director of Plextek Ltd. He started his professional career with Racal BCC working on tactical military radios before being one of the first employees in Vodafone where he developed the RF sections for the “Brick” handset. This involved the development of thin and thick film processes on ceramic and various associated manufacturing processes. From there he moved back into Military communications, IFF systems, flight control systems and CT2 before co-founding Plextek Ltd in 1989, the leading communications technology group that has since produced Plextek RFI, Telensa (street lighting control), Blighter Surveillance Systems (electronic scanning radar) and Redtail Telematics (vehicle tracking).

Angus Hone – CFO (Plextek Group)

Angus qualified as a Chartered Accountant with KPMG in 1992 and spent the first 10 years of working life in large corporate world (ICL, GSK). Since completing a Cranfield MBA in 2000 Angus has held CFO roles in mainly VC- or PE- backed technology companies in the healthcare and technology industries, involving fund raising, organic growth, M&A and exiting.

Contact Angus via email:icon_mailto Angus Hone

David Baillie – Board Advisor

David joined Plextek RFI as an Advisor in December 2016.  He is a technology entrepreneur whose most recent executive role was as CEO of Fogale Sensation in Geneva – a leader in ‘4D’ Touch Sensing.  Prior to that, David was the CEO of CamSemi, an award-winning UK company focused on energy efficient power conversion.  CamSemi shipped over 600 million units before being acquired by Power Integrations, at the end of 2014. Before CamSemi he was a founding European employee for two pioneering companies: C-Cube Microsystems (consumer digital video) and LSI Logic (CMOS ASICs). Both these startups went on to highly successful IPOs in the USA.

During his 35-year professional journey, David has lived and worked in six countries, raised money, bought and sold businesses, been blessed with a wonderful marriage and family and represented fabless start-ups on the Board of the GSA (Global Semiconductor Alliance). He holds a Bachelor of Science (B Sc.) degree in Applied Physics and Masters degree in Microelectronics & Business Studies.


If you would like to make use of Liam Devlin’s MMIC expert witness advice or would like expert advice on other aspects of RF, microwave and mm-wave engineering and technology please icon_mailto email us with “Expert Witness Advice” in the subject line.

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