Roger Freeman
Junior Member level 2
Hello
I would like to do finite element analysis of an air-cored solenoid - the coil's diameter is approx 100mm, its length (height) is approx. 500mm and it is wound to have a single layer of 1500 turns - copper wire is approx.0.3mm diameter. The length of conductor wound upon the cylinder approaches lambda/4 for the frequency I want to model the structure at (hundreds of kHz or perhaps 1MHz). The solenoid will be modelled in a number of configurations, starting with it as a vertical electrically small antenna above a ground plane.
I'd like to investigate the electric/magnetic field distribution along the length of the axis of the coil, when the coil is energised at various frequencies and, ideally, I would like to model the input impedance of the coil and the output impedance.
HFSS cannot mesh this sort of structure , FEMM appears to handle static solutions only and NEC struggles with the number of turns (although I can scale it to suit, perhaps but then I am not sure how to scale the results).
Please could you suggest what modelling approach could I use?
I would like to do finite element analysis of an air-cored solenoid - the coil's diameter is approx 100mm, its length (height) is approx. 500mm and it is wound to have a single layer of 1500 turns - copper wire is approx.0.3mm diameter. The length of conductor wound upon the cylinder approaches lambda/4 for the frequency I want to model the structure at (hundreds of kHz or perhaps 1MHz). The solenoid will be modelled in a number of configurations, starting with it as a vertical electrically small antenna above a ground plane.
I'd like to investigate the electric/magnetic field distribution along the length of the axis of the coil, when the coil is energised at various frequencies and, ideally, I would like to model the input impedance of the coil and the output impedance.
HFSS cannot mesh this sort of structure , FEMM appears to handle static solutions only and NEC struggles with the number of turns (although I can scale it to suit, perhaps but then I am not sure how to scale the results).
Please could you suggest what modelling approach could I use?