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EVLA – Polarizers for X, K u , K and K a Bands

EVLA – Polarizers for X, K u , K and K a Bands. S. Srikanth NRAO/Charlottesville. Circular Polarization. Circular Polarization. Contours of Constant Axial Ratio vs. Amplitude and Phase Error. Septum Polarizer. Septum Polarizer. Septum Polarizer 12-15.4 GHz. Return Loss.

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EVLA – Polarizers for X, K u , K and K a Bands

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  1. EVLA – Polarizers for X, Ku, K and Ka Bands S. Srikanth NRAO/Charlottesville EVLA Feed/FE PDR February 12-13, 2002

  2. Circular Polarization EVLA Feed/FE PDR February 12-13, 2002

  3. Circular Polarization EVLA Feed/FE PDR February 12-13, 2002

  4. Contours of Constant Axial Ratio vs. Amplitude and Phase Error EVLA Feed/FE PDR February 12-13, 2002

  5. Septum Polarizer EVLA Feed/FE PDR February 12-13, 2002

  6. Septum Polarizer EVLA Feed/FE PDR February 12-13, 2002

  7. Septum Polarizer12-15.4 GHz Return Loss Deviation of  from 90° EVLA Feed/FE PDR February 12-13, 2002

  8. Conventional Polarizer EVLA Feed/FE PDR February 12-13, 2002

  9. Mode Combiner/Splitter(18-26.5 GHz) EVLA Feed/FE PDR February 12-13, 2002

  10. OMT – 18-26.5 GHz Boifot et. al., Proc. IEE, vo1. 137, Dec. '90. Wollack, EDIR #303, May '96.

  11. Phase Shifter EVLA Feed/FE PDR February 12-13, 2002

  12. Phase Shifter(a) Dispersion characteristics; (b) Differential phase shift vs. the frequency

  13. Corrugated/Dielectric Phase Shifter(a) Dispersion characteristics; (b) Differential phase shift vs. the frequency Lier et. al., IEEE MTT, vol. 36, Nov. '88.

  14. Corrugated Phase Shifter EVLA Feed/FE PDR February 12-13, 2002

  15. NRAO Phase Shifter(18-26.5 GHz) Srikanth, IEEE Microwave & Guided-Wave Ltrs., vol. 7, June '97. EVLA Feed/FE PDR February 12-13, 2002

  16. NRAO Phase Shifter (18-26.5 GHz) EVLA Feed/FE PDR February 12-13, 2002

  17. NRAO Phase Shifter (18-26.5 GHz)Measured  Differential Phase Shift EVLA Feed/FE PDR February 12-13, 2002

  18. NRAO Phase Shifter (18-26.5 GHz)Measured S11, S12 Return Loss Insertion Loss EVLA Feed/FE PDR February 12-13, 2002

  19. NRAO Phase Shifter(26.5-40 GHz) EVLA Feed/FE PDR February 12-13, 2002

  20. NRAO Phase Shifter (26.5-40 GHz)Measured  Differential Phase Shift EVLA Feed/FE PDR February 12-13, 2002

  21. NRAO Phase Shifter(26.5-40 GHz) Measured S11, S12 Return Loss Insertion Loss EVLA Feed/FE PDR February 12-13, 2002

  22. EVLA Phase Shifters EVLA Feed/FE PDR February 12-13, 2002

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