Development of Low Cost Synchronization Oscillators for Stand A lone N etworks for Efficient Broadcasting in the Geographically Challenging Locations of India. A pilot project funded by Ministry of Human Resource Development Under the Scheme on - PowerPoint PPT Presentation
Development of Low Cost Synchronization Oscillators for Stand Alone Networks for Efficient Broadcasting in the Geographically Challenging Locations of India A pilot project funded by Ministry of Human Resource Development Under the Scheme on “National Mission on Education through Information and Technology” Project PI: Dr. K. S. Daya Microwave Physics Laboratory Department of physics & Computer Science Dayalbagh Educational Institute Dayalbagh, Agra –282 110 Project website: www.mwpl-dei.com
Transcript
Development of Low Cost Synchronization Oscillators for Stand Alone Networks for
Efficient Broadcasting in the Geographically Challenging Locations of India
A pilot project funded byMinistry of Human Resource Development
Under the Scheme on“National Mission on Education through Information and Technology”
Project PI: Dr. K. S. DayaMicrowave Physics Laboratory
Department of physics & Computer ScienceDayalbagh Educational Institute
Dayalbagh, Agra –282 110
Project website: www.mwpl-dei.com
Objective for the Pilot PhaseStand-Alone networks are autonomous network stations with every node having the complete functionality of a traditional network but without the hierarchy for the information traffic flow. Unique feature of local information routing makes these systems capable of substantially reducing the network roll-out cost and turning it into a viable option for isolated regions with low demographic density with very low operational cost
Major Drawback These systems do not have reference clock for synchronization, coming from the server in a traditional network.
Specifications of the Dielectric Oscillator at every client:
Material Quartz
Dielectric Constant 10
Stability 40 ppm
Loss Tangent 0.01
Synthesis of Dielectric Materials
(Completed)
Simulations & Design
Optimization(Completed)
Fabrication of cavity and coupling
mechanism (Completed)
Temperature dependent
measurements and measure of
stability(in progress)
Design Modification for
improvement(to be completed
soon)
Design of Temperature Stable Dielectric Resonator which is the basic building block for a stable Oscillator
High Dielectric Constant (for compact size)
High quality factor (for accuracy in frequency selection)
Temperature stable from -50C to 550 C and slow thermal aging
Stability of < 20ppm
Designed Resonators
Results
2.3 2.35 2.4 2.45 2.5-40
-35
-30
-25
-20
-15
-10
-5
0
Frequency (GHz)
S11/
S21
(dB)
BZT CTNA
Simulated Results
Experimental Results
Comparison of the results with existing dielectric resonator in clients
