RF Energy Harvesting Simulation

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SUMMARY

The discussion centers on RF energy harvesting simulation, specifically targeting the measurement of Power Conversion Efficiency using the 2.4 GHz frequency band. Participants suggest utilizing simulation software such as SPICE, COMSOL, and NEC for accurate modeling. Key considerations include defining the physical size of the device, antenna configuration, and available field strengths in the intended harvesting area. The importance of specifying the scenario for effective simulation is emphasized, as generic simulations cannot yield precise results without detailed input.

PREREQUISITES
  • Understanding of RF energy harvesting principles
  • Familiarity with simulation software like SPICE and COMSOL
  • Knowledge of antenna design and configurations
  • Basic concepts of Power Conversion Efficiency measurement
NEXT STEPS
  • Research the capabilities of SPICE for RF simulations
  • Explore COMSOL Multiphysics for energy harvesting modeling
  • Learn about NEC for antenna simulations and design
  • Investigate methods to estimate energy wastage in existing processes
USEFUL FOR

Engineers and researchers involved in RF energy harvesting, antenna design specialists, and anyone focused on improving Power Conversion Efficiency in energy systems.

kn_patil
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I want to do RF energy harvesting simulation for the measurement of Power Conversion Efficiency.
So how can be simulation done on a single platform?. Kindly suggest
 
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Welcome to PF. :smile:

Can you say more about what you want to simulate? What types of simulation software do you have access to? SPICE, COMSOL, NEC (antenna simulations), others?

What frequency band(s) do you want to harvest energy from? What is the physical size of your device and what is your planned antenna configuration? Do you have information about what field strengths are available in the areas where you want to do this RF energy harvesting?

https://www.qsl.net/4nec2/
 
berkeman said:
ergy from? What is the physical size of your device
I want to use the 2.4 GHz band and the entire thing I want to do in simulation. I want to increase the power conversion efficiency. So which is a platform where I can do this
 
@berkeman asked you five questions. You answered one. If you answer the other four, you'll get better advice.
 
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berkeman said:
Can you say more about what you want to simulate?
Exactly. A simulation package cannot define your problem; it can only work out results from a scenario you specify. The only 'simulation' that can exactly do your job would have to be one that was written by someone else who posed the self same question. Perhaps what the OP should be doing, to start with, is to estimate the level of energy that is wasted the then estimate the fraction of that energy that the 'harvesting' process could grab.

I always get grumpy about questions about Harvesting unless they are very specific. Say where you feel there is some 'spare energy' to be had from an existing process. If there is some spare energy then I would suggest that someone has not got an efficient design in the first place.
 
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Most likely this can only be answered by an "old timer". I am making measurements on an uA709 op amp (metal can). I would like to calculate the frequency rolloff curves (I can measure them). I assume the compensation is via the miller effect. To do the calculations I would need to know the gain of the transistors and the effective resistance seen at the compensation terminals, not including the values I put there. Anyone know those values?

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