Unleash the Power of Your Reception: How to Build a High-Performance Antenna

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To build a high-performance antenna for picking up RF or ambient electricity, it's essential to clarify the specific goals and requirements. The discussion highlights the need for foundational knowledge, suggesting that starting with basic concepts in antenna theory and energy harvesting is crucial. Participants recommend researching energy harvesting antennas and considering practical applications, such as using a Field Mill for educational projects. Understanding the electric field of the earth is also emphasized as a key factor in antenna performance. Overall, refining the project's objectives will lead to more effective design and implementation strategies.
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Hey guys, I need to make an extremely powerful antenna that will pick up RF in the air or just to get ambient electricty.
 
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tommycaiden said:
Hey guys, I need to make an extremely powerful antenna that will pick up RF in the air or just to get ambient electricty.
It might be a bit unclear from the picture regarding where to start, but usually with these things it's best to begin with the foundation. I'm not an expert on how to mix concrete but this might be a good start: http://en.wikipedia.org/wiki/Concrete

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In other words - the question is a little open-ended.
"RF" is a very broad range and "pick up ambient electricity" is a bit vague.
What do you hope to achieve?

To start you off:
http://www.antenna-theory.com/
 
Search for "energy harvesting antennas" and refine your questions.
 

Thread '3-terminal device external modeling'

Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
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Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
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