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P12311 MSD Project RF Anechoic Chamber

P12311 MSD Project RF Anechoic Chamber. Automated Antenna Radiation and Gain Measurement System with User Interface. Sheldon Palmer Danielle Walters 2/22/2012. Measurement System. Control Box. Spectrum Analyzer. Cable Pass Through. Frequency Generator.

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P12311 MSD Project RF Anechoic Chamber

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  1. P12311 MSD ProjectRF Anechoic Chamber Automated Antenna Radiation and Gain Measurement System with User Interface Sheldon Palmer Danielle Walters 2/22/2012

  2. Measurement System Control Box Spectrum Analyzer Cable Pass Through Frequency Generator Frequency Generator: Agilent MXG Analog Signal Generator 100kHz-6GHz (N5181A) Spectrum Analyzer: Hewlett Packard Spectrum Analyzer 9kHz-50GHz (8565E) Transmit Antenna Receive Antenna

  3. Motor Arm Allows antenna to be shifted up and down to ensure correct height and side to side to ensure it is centered Allows antenna to be shifted forward and back to ensure correct distance

  4. Motor Arm Arm with mount Turntable Position Marker Acrylic sheets sandwiching turntable Acrylic Sheet Turntable Motor Acrylic Sheet Motor Power Cord

  5. Reflector Antenna Characterization

  6. Microstrip Antenna Characterization

  7. Control System Motor Cord Power Switch Parallel Port Connection Power Adapter DAC USB

  8. Friis Transmission Equation • PTest= Power of Test Antenna • PStandard= Power of Standard Gain Antenna • GTest= Received Gain of Test Antenna • GStandard= Received Gain of Standard Gain Antenna

  9. LabVIEW Gain Calibration Program

  10. LabVIEW Measurement Program

  11. Free Space Microstrip Measurement Results Raw Data Normalized Data HPBW= 113° - 58° = 55°

  12. Microstrip Chamber Measurement Results Raw Data Normalized Data HPBW= 119° - 58° = 61°

  13. Reflector Chamber Measurement Results Raw Data Normalized Data HPBW= 98° - 82° = 16°

  14. Antenna Platform Initialization (Forward)

  15. Antenna Platform Initialization (Reverse)

  16. Future Work • Continue Testing System • Ensure LabVIEW Positioning is exact • Continue Improvement to GUI

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