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Field Fabrication of Advanced Antennas

Field Fabrication of Advanced Antennas. George D. Sergiadis Aristotle University of Thessaloniki, Greece School of Engineering, Dept. of Electrical & Computer Engineering Telecommunications Laboratory. Communications, communications, communications , communications.

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Field Fabrication of Advanced Antennas

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  1. Field Fabrication of Advanced Antennas George D. Sergiadis Aristotle University of Thessaloniki, Greece School of Engineering, Dept. of Electrical & Computer Engineering Telecommunications Laboratory The Fourth International Fab Lab Forumand Symposium on Digital Fabrication

  2. Communications, communications,communications, communications • We need all sorts of communications, voice, data… George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  3. Rural mesh model - main components • Hardware: • Routers • Antennas, cables • Power supplies - Solar • Structural solutions • Software: • Networking and dynamic multihop routing • QOS control • Management • Security and privacy George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  4. Advanced Antennas George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  5. Advanced Antennas at 2 to 5 GHz • High Gain • High Manufacturing Accuracy • Specialized Materials • High cost Price: $349.90 George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  6. Field produced Antennas George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  7. Fab Lab Approach • Very low material cost, 1 to 3 US $ • Low Manufacturing Sensitivity • Locally Found Materials • Fab Lab easily reproducible, by unskilled “Fablabers”, using the Fab Lab tools George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  8. Collinear Antennas, 2.4 GHz, 3 to 9 dbi George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  9. Planar Antennas, 8 dipoles, 2.4 GHz, 9 dbi George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  10. Wide bandwidth George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  11. High gain George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  12. Very high gain systems, 64 dipoles • Planar design • Paralleling of elementary dipoles • Glass dielectric • Phased feeding • But, Sensitive to Glass thickness and er George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  13. Challenging research issues • Glass dielectric constant variability • Glass losses • Glass width variability • Dielectric homogeneity, higher frequencies • Manufacturing tolerant design • Low cost testing tools George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  14. New approach – Air dielectric – 9 to 13 dbi George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  15. First simulation results George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  16. Dual band function, 2.4 and 5 GHz operation George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  17. Related publications • “A wideband printed dipole antenna with optimized tapered feeding balun for ISM and FWA bands” Microwave and Optical Technology Letters (Wiley), Vol. 43, No. 5, pp. 437-441, December 2004. • “Wideband Printed Dipole Antenna Parasitically Enhanced with Over-an-Octave bandwidth. Dual-band Variant for WLAN Applications”Microwave and Optical Technology Letters (Wiley), Vol. 48, No.3, pp. 444-449, March 2006. George Sergiadis The Fourth International Fab Lab Forum and Symposium on Digital Fabrication – Chicago, August 22-23 2007

  18. Field Fabrication of Advanced Antennas George D. Sergiadis Aristotle University of Thessaloniki, Greece School of Engineering, Dept. of Electrical & Computer Engineering Telecommunications Laboratory The Fourth International Fab Lab Forumand Symposium on Digital Fabrication

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