RF and Microwave Activities Nanotechnology Centre ATI Current projects: 1.Materials characterization to 220GHz 2.Novel mm-wave antenna structures at 60GHz.

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Presentation transcript:

RF and Microwave Activities Nanotechnology Centre ATI Current projects: 1.Materials characterization to 220GHz 2.Novel mm-wave antenna structures at 60GHz and 77GHz 3.Multi-layer 15GHz circularly polarized antenna 4.Filters with defected ground planes 5.Adaptive antenna structures 6.Compact satellite antennas 7.Multifunction microwave antennas 8.Wireless sensors using carbon nano-tubes 9.Miniature microwave carbon nano-tube structures

RF and Microwave Activities Nanotechnology Centre ATI EPSRC Grant January December 2006 £215k ‘Integrated antenna for millimetre-wave MCMs’ Charles Free and Manju Henry Outcomes so far: 1.Prototype 60GHz integrated antenna has been designed and successfully tested. 2.LTCC (low temperature co-fired ceramic) process has been established in the ATI at Surrey. 3.New technique has been established for minimising conductor losses at mm-wave frequencies to 110GHz.

RF and Microwave Activities Nanotechnology Centre ATI Future projects (under development): 1.Novel miniature microwave components based on carbon nano-tubes. 2.Integration of distributed optical components within a multilayer mm-wave circuit to give optical-microwave coupling. 3.Hybrid microwave integrated circuits using mixed matrials technology. 4.Establishment of measurement standards for planar millimetre-wave circuits (with external collaborator). 5.Planar active microwave antennas, based on new polymer materials (with external collaborator). 6.Exploitation of GaN for millimetre-wave MMICs.

RF and Microwave Activities Nanotechnology Centre ATI TE 01 mode Mode filter Test structure Measured loss tangent New slit-cavity technique for measuring mm-wave parameters of materials

RF and Microwave Activities Nanotechnology Centre ATI New concept for circularly polarized planar antennas 15GHz LTCC antenna Measured high-quality circular polarization

RF and Microwave Activities Nanotechnology Centre ATI 300um 380um Alumina  r = um Multi-layer thick-film technology used to produce high quality planar microwave components

RF and Microwave Activities Nanotechnology Centre ATI Branch line coupler [ 2mm x 2mm ] Rat-race coupler [ 2mm x 1mm ] Photoimageable thick-film technology has been used to produce miniature microwave components giving high performance

RF and Microwave Activities Nanotechnology Centre ATI Microwave Laboratory Major Facilities: Testing: Vector Network Analyzer Systems to 220GHz Fabrication: Traditional thick-film Photoimageable thick-film LTCC (Low Temperature Co-fired Ceramic)

RF and Microwave Activities Nanotechnology Centre ATI Active External Collaborations: 1.Heraeus Inc (Germany and US) Characterization of ceramic materials at microwave and millimetre-wave frequencies. 2.University of Oulu (Finland) Microwave planar antenna using LTCC 3.Thales Aerospace (UK) Application of GaN in microwave devices 4.PECL (UK) Compact planar antennas using new polymer materials 5.University of Kent (UK) Integrated microwave antennas