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Wideband Integrated Antenna Dual Polarization

Wideband Integrated Antenna Dual Polarization. Extended Trade-off Study by the University of Manchester. Outline. High-level schedule review Infinite elements array simulations and measurements Vivaldi Antenna Bunny Ear Combline Antenna (BECA) Octagon Rings Antenna (ORA)

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Wideband Integrated Antenna Dual Polarization

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  1. Wideband Integrated Antenna Dual Polarization Extended Trade-off Study by the University of Manchester

  2. Outline • High-level schedule review • Infinite elements array simulations and measurements • Vivaldi Antenna • Bunny Ear Combline Antenna (BECA) • Octagon Rings Antenna (ORA) • Finite elements array study • Summary and future work

  3. Schedule review 1st generation 2nd and 3rd generation 4th generation Finite Array Studying Triangular grid investigation • Improved Vivaldis • BECA • ORA • Mini array studying • Conventional Vivaldis • Simulations • Verifications Phase 3 Phase 2 Phase 1 Jun July Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun July Aug Sep Oct Nov Dec 2007 2008

  4. Integrated Aperture Array Antennas Vivaldi Antennas Bunny Ear Combline Antennas (BECA) Octagon Rings Antennas (ORA)

  5. Conventional Vivaldis

  6. Improved Vivaldis PTFE, Single-sided copper er=3.4, Dissipation factor: 0.007 Thickness: 50 μm Arlon Diclad 880 er=2.2, Dissipation factor: 0.0009 Thickness: 1.27mm

  7. Infinite array performance for improved Vivaldis 170mm

  8. Bunny Ear Combline Antenna (BECA)

  9. Single element BECA element Probe for pattern measurement

  10. Pattern for BECA D-plane E-plane H-plane

  11. BECA linear array 8×1

  12. Insertion loss for the centre element of the linear array

  13. Dual polarisation element X-cfg L-cfg

  14. X-cfg over L-cfg for BECA L-cfg X-cfg

  15. CoPol over Xpol ratio in D-plane

  16. Octagon Rings Antennas (ORA)

  17. Munk Dipole Array – Layered materials

  18. Munk Dipole Array – Meta material layer

  19. Performance for MUNK Dipole Array, 150mm Unit • 2 Layered materials • Reflection facets

  20. Performance for different element shapes, 165mm • Squares • Circles • Octagons

  21. Octagon Rings Array 150mm unit cell

  22. ORA measurements

  23. 4 × 3 finite ORA Centre element

  24. CoPol to Xpol ratio in D-plane

  25. Finite element array studying

  26. ORA finite array

  27. ORA 8 × 8 scan pattern BS

  28. ORA 8 × 8 scan pattern E45o

  29. BECA 11 × 11 finite array

  30. Size of finite array

  31. 8x8 centre section in 11x11 finite array beam scan

  32. Summary

  33. Future work • 16 × 16 finite elements arrays • Triangular grid element investigation

  34. Publications • Journals “Bunny Ear Combline Antenna for dual-polarized aperture array,” to be submitted to IEEE Trans. On Antennas and Propagation. • Patents “Compact, low cost, wideband array antennas,” pending.

  35. Thank you!

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