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PRATHAM Ground Station GGITM, Bhopal

PRATHAM Ground Station GGITM, Bhopal. Progress Report. 1. Project- PRATHAM.

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PRATHAM Ground Station GGITM, Bhopal

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  1. PRATHAM Ground StationGGITM, Bhopal Progress Report 1

  2. Project- PRATHAM Project ‘PRATHAM’ was initiated by IIT-Bombay to launch the first student’s satellite. The aim of the satellite is to measure TEC (Total Electron Count) of the ionosphere and prepare TEC map of India.This project requires installation of ground-station at various locations across India. This project was undertaken by GGITM (Gyan Ganga Institute of Technology and Management) in Bhopal. 2

  3. Contributors to the Project ISRO: It has mentored this project and will launch this satellite. IIT-B: It took the initiative to launch the first student satellite and also involving students from other universities in setting up ground station. GGITM: It is setting up a ground station in Bhopal. 3

  4. Objectives The main objectives of our project are: • To establish two independent crossed yagi antenna at 437MHz & 145 MHz in GGITM campus.  •To involve juniors from our college in building the ground station. • To share knowledge within our institute in the field of satellite communication & antenna designing. • To make GGITM, Bhopal a respected centre in field of student satellite communication technology. 4

  5. Task • Design a Yagi antenna having following characteristics:- • 1) Frequency = 437 MHz & 145 MHz • 2) Gain = 10 dB approx (437Mhz) and 7 dB approx(145MHz). • Read general concepts of antenna and Yagi antenna • Learn to simulate a Yagi antenna • Validate the parameters obtained from simulation • Construct a Yagi antenna with the help of obtained parameters . 5

  6. Work We Have Done • Hardware • Calculated antenna parameters for both the frequencies • Study of AM Transmitter and Receiver • Fabrication of Antenna • Software • Simulation of simple antenna using NEC • Simulation of a Yagi antenna NEC • Study of radiation patterns • Tracking Software 6

  7. Snapshots.. Antenna Elements… 5 Element 3 Element

  8. Briefing Sessions..

  9. Proposed Site

  10. Our Calculated Antenna Parameters 10

  11. Antenna Simulation at 437 MHz

  12. Basic Ground Station Configuration Rotormechanism Antenna Preamplifier Computer Receiver 12

  13. Future Tasks Timeline • Fabrication of Antenna – antenna elements • Testing of Antenna – frequency wise and strength wise • Receiver Circuit • Rotor and Motor interfacing • Final Ground station setup By July’11 By Aug’11 By Sep’11 By Oct’11 By Nov’11 13

  14. Difficulties • Calculation of TEC • Practical Antenna-Dipole gap • RLC Loading • Estimation of atmospheric and polarization losses Post Data Requirements- • Signal strength Analysis, Data storage / analysis and computers 14

  15. Team

  16. SARP (Student’s Association for Research and Project) GGITM • Abhijeet Mishra • Abhishek Patel • Aditya Kumar Bhatt • Aditya Rai • Amay Chandekar • Ankit Chahare • Garvita Agrawal • Govinda Chandak • Nikhil Jain • Sacheta Singh • Saiyam Jain • Shubhangi Rohilla Team members: Dr P. S. Venkataramu Principal 16

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