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RFID resonance frequency
Posted 10 mag 2021, 08:35 GMT-4 Low-Frequency Electromagnetics, RF & Microwave Engineering Version 5.6 4 Replies
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Hallo, I am new to COMSOL simulations in the RF section. I am designing a spiral RFID antenna which should have a resonance frequency of 13.56MHz. I have a coil with an inductance of 2.96uH (which i verified using the ac/dc physics and calculation) and I place a parallel capacitor using a lumped element boundary condition. The spiral has 8 turns and is made of stainless steel having an impedance boundary condition and the boundary feed is a lumped boundary with a feed of 3.3V. However, my model returns a resonance at about 800MHz. Does anyone have an insight of what I am doing wrong?
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This is the .mph file
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Hi Kelvin,
The file did not get attached. Maybe that's because of its size. You can reduce an mph file's size by clearing the solutions and meshes.
Best,
Jeff
-------------------Jeff Hiller
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Hi Jeff, let me try to attach it again
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Hi
Hi Kelvin,
The file did not get attached. Maybe that's because of its size. You can reduce an mph file's size by clearing the solutions and meshes.
Best,
Jeff
Hi Jeff this is the mph file
Attachments: