Previous studies on optimization of electromagnetic vibration energy harvesters assumed the radius and the height of a cylindrical construction volume to be fixed. We present optimization and comparison of three different types of electromagnetic vibration energy harvesters under constant volume conditions where the radius or the height can also be a design variable. The voltage and the power output are calculated for each architecture using finite element analysis. We found that different types of electromagnetic coupling architectures can be optimized with different shapes of the construction volumes.

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