| EPSRC Reference: |
GR/S13835/01 |
| Title: |
Multilayer Mesh Filters for Quasi Optical Beam Splitting Applications |
| Principal Investigator: |
Vardaxoglou, Professor Y |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Electronic, Electrical & Systems Enginee |
| Organisation: |
Loughborough University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
22 December 2003 |
Ends: |
21 December 2005 |
Value (£): |
133,593
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| EPSRC Research Topic Classifications: |
| RF & Microwave Technology |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Communications |
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| Related Grants: |
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| Panel History: |
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Summary on Grant Application Form |
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Present beamsplitter technologies which include multilayer dielectric supported FSS, struggle to satisfy the requirements for future mm- wave multi spectral instruments where very closely spaced frequency bands are required to be separated. A technique is proposed which will significantly improve the efficiency and the out of band rejection by removing the dielectric loss inherent in quasi-optical printed FSS diplexers. This is achieved by etching arrays of resonant slot elements into optically flat self supporting thin wafers, which are then metallised and sandwiched to produce a multilayer airspaced mesh filter with a high Q bandpass response. Furthermore this technique can be employed to construct quasi-optical beamsplitters for operation at THz frequencies and higher, where it is not possible to support resonant patch elements on extremely thin and fragile membranes. To achieve the objectives, the project will require a three-fold approach which will combine interrelated simulation, fabrication and measurement tasks. Accurate simulation of, the beamsplitter frequency response is essential and thus a computer model will be modified to cater for the effect of metal conductivity, slot thickness and rounding of the slot edges. The latter will be determined during a programme of work which will provide a suitably accurate, controllable and repeatable micromachining device fabrication route and conductor deposition process. Frequency swept transmission response measurements in the range 100-360GHz will be employed to quantify the performance improvement which is provided by the multi-layer mesh filter.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.lboro.ac.uk |