Stuart Dunbar
Senior Engineer at SARAS TECHNOLOGY LIMITED- Claim this Profile
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Bio
Experience
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SARAS TECHNOLOGY LIMITED
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United Kingdom
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Appliances, Electrical, and Electronics Manufacturing
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1 - 100 Employee
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Senior Engineer
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Jun 2015 - Present
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Filtronic
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United Kingdom
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Telecommunications
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1 - 100 Employee
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Senior RF Design Engineer
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Apr 2011 - Mar 2014
As the point to point business suffered from a downturn in demand Filtronic acquired the assets of an R&D company which had developed several products for the Wireless Infrastructure business sector including a novel autotune filter. I was initially involved on working to get this product into production and since have gone on to design and develop a range of filters and diplexers which form part of the combining structures used in cellular communications systems and base stations.I was also instrumental in developing and initiating the production of a series of Terrestrial TV interference filters which were required to mitigate the co-channel interference of the new 4G signals.
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Filtronic
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United Kingdom
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Telecommunications
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1 - 100 Employee
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Technical Manager
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2002 - 2011
As the Cable Communications business was in decline I secured a position within the newly formed Broadband division which had products designed for the point to point link market. My role was within the Waveguide (WG) filter department where I took on a suite of new designs which covered the range 7-38Ghz. There were around 10 frequency bands each with multiple product variants and production quantities peaked at around 2000 units/week. I was responsible for introducing the next generation designs for 3 customers. I was promoted to Technical Manager and was the technical authority for all the WG products.
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Technical Manager
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1996 - 2002
I was selected from the engineering team at Filtronic Components to help set up a new venture to address the rapidly growing market within the Cable TV industry during the latter half of the 1990's. I was involved in the design and development of a range of products used in the hybrid fiber/coaxial (HFC) cable distribution network. These used a combination of LEF and passive splitter technology. I also gained experience working with active circuits including GaAs FET, hybrid amplifiers and fiber optic transceivers. As I progressed within the group I was promoted to Higher Senior Engineer grade.
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Product Line Manager
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Jul 1985 - Jul 1996
I was initially employed as a graduate Engineer working on Suspended Substrate Stripline (SSS) Filters and multiplexers. I worked on the design and development of a range of filters from simple lowpass designs to more complicated multiplexers. I progressed to take on responsibility for particular key account customers. Around 1990 I took over responsibility for the Lumped Element filter (LEF) Product line. At the peak of the business I was responsible for a team of 5 engineers and technicians. I was initially employed as a graduate Engineer working on Suspended Substrate Stripline (SSS) Filters and multiplexers. I worked on the design and development of a range of filters from simple lowpass designs to more complicated multiplexers. I progressed to take on responsibility for particular key account customers. Around 1990 I took over responsibility for the Lumped Element filter (LEF) Product line. At the peak of the business I was responsible for a team of 5 engineers and technicians.
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Education
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University of Leeds
Master of Science (MSc), Radio Frequency and Communications Engineering -
University of Bradford
Bachelor of Engineering (BEng), Electrical and Electronics Engineering -
University of Bradford
electrical and electronic engineering -
Merchant Taylors