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A Compact Dual Frequency Microstrip Antenna Sona O Kundukulam and Aanandan Chandroth Karuvandy

A Compact Dual Frequency Microstrip Antenna Sona O Kundukulam and Aanandan Chandroth Karuvandy Cochin University of Science and Technology INDIA A device for * sending out signals Transmitting Mode * accepting signals Receiving Mode Cochin University of Science and Technology, INDIA

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A Compact Dual Frequency Microstrip Antenna Sona O Kundukulam and Aanandan Chandroth Karuvandy

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  1. A Compact Dual Frequency Microstrip Antenna Sona O Kundukulam and Aanandan Chandroth Karuvandy Cochin University of Science and Technology INDIA

  2. A device for * sending out signals Transmitting Mode * accepting signals Receiving Mode Cochin University of Science and Technology, INDIA

  3. Broadcasting Antenna Cochin University of Science and Technology, INDIA

  4. Microwave Link Cochin University of Science and Technology, INDIA

  5. Antenna Characteristics remain the same in the Tx and Rx Mode 1. Radiation Pattern  In which directions it can transmit energy or  from which directions it can receive energy Cochin University of Science and Technology, INDIA

  6. 2. Gain how effectively the antenna can concentrate energy in a desired direction 3. Polarisation the orientation of electric field in the em wave 4. Bandwidth Frequency band over which the characteristics are within the specified range Cochin University of Science and Technology, INDIA

  7. antenna Return loss(dB) Dummy load Frequency(GHz) 2 1 Dummy load is perfectly matched, but it is not radiating ! Cochin University of Science and Technology, INDIA

  8. Patch Substrate Ground Plane Side view Top view Microstrip Antenna Antenna that can be integrated to the circuit Cochin University of Science and Technology, INDIA

  9. Attractive Features  It is conformal Reduces aerodynamic problems in moving vehicles  Smaller in size Suitable for compact systems  Inexpensive in mass production Cochin University of Science and Technology, INDIA

  10. Geometry of the Patch determines the Antenna Characteristics New Design  More compact than currently available Microstrip Antennas  Operates at two frequency bands  Two bands are orthogonally polarised  Antenna can be energised independently using two feeding ports without any interference between the two bands Cochin University of Science and Technology, INDIA

  11. Port1 Port2 Crescent shaped Microstrip Antenna Cochin University of Science and Technology, INDIA

  12. HP 8510C Network Analyser Cochin University of Science and Technology, INDIA

  13. Anechoic Chamber Cochin University of Science and Technology, INDIA

  14. Position Controller Network Analyser PC Cochin University of Science and Technology, INDIA

  15. 0 -10 Port 2 -20 return loss (dB) Port 1 -30 -40 -50 1.0 1.2 1.4 1.6 1.8 2.0 frequency (GHz) Cochin University of Science and Technology, INDIA

  16. 0 Isolation (dB) -10 -20 -30 -40 1.0 1.2 1.4 1.6 1.8 2.0 Frequency (GHz) Cochin University of Science and Technology, INDIA

  17. Radiation Patterns Cochin University of Science and Technology, INDIA

  18. Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Cochin University of Science and Technology, INDIA

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