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Details of Grant 

EPSRC Reference: GR/L43633/01
Title: MONOLITHICALLY INTEGRATED QUANTUM BARRIER OSCILLATORS AND MIXERS FOR MILLIMETRE-WAVE RECEIVERS AT 180GHZ
Principal Investigator: Steenson, Dr DP
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Electronic and Electrical Engineering
Organisation: University of Leeds
Scheme: Standard Research (Pre-FEC)
Starts: 20 March 1998 Ends: 19 March 2001 Value (£): 55,041
EPSRC Research Topic Classifications:
RF & Microwave Technology
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
There is a continuing need for low-cost components which can be used at millimetre wave frequencies for the forthcoming communications industries. Present high-bandwidth wireless communication links are restricted to 60ghz and below, primarily due to the cost and availability of components which operate at these frequencies. To cater for future short range high capacity wireless data links, it would be desirable to extend present operating frequencies to 183ghz. One possible solution is proposed here, which is to realise a self-contained RF down-converter using novel components and designs forming an integrated planar oscillator and mixer circuit. The oscillator would be designed to be voltage tunable and operate at 90.05ghz (providing the local oscillator signal) and driving an extremely efficient sub-harmonic mixer diode. The oscillator and mixer junctions would be in very close proximity reducing the necessity for high oscillator power levels. All the necessary matching, filter and bias network would be incorporated in the complete circuit as would the free-space to circuit transition, at the signal frequency of 183ghz, Final performance targets are: Fs = 183ghz with internally generated LO = 90.5ghz producing a 2ghz IF with CL <10db, 1db compression point at +10dbm and all inter-modulation products 30db below output signal level.
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Organisation Website: http://www.leeds.ac.uk