Recent content by ethanRR

Dear @berkeman, Thank you for taking the time in reading the reference. In that same reference, some examples also mention the 125 kHz range. The principle is the same, inductive coupling. I said 135 kHz because my reader works specifically at 134.2 kHz. For example, one compatible tag is this...

Hi @tech99, Thank you for your answer. This is actually my question. I want to match a specific inductance value for the design of an inductive coupling antenna. A solenoid of square form is actually in the reference I mentioned (equation 26). The shape I meant is something like the attached...

Inductance of antenna coils of different shapes can be estimated. Some examples are: A circular coil with single turn. N turn multilayer circular coil. Spiral coil. N turn squae loop coil. etc. For plannar design (spiral, rectangular, etc) I have used this reference (from pag. 9 onwards)...