Details: Published: 21 January 2015; Hits: 21747

Inductor on PCB as a meander structure.

In addition to coils on PCB in the form of a square or circular spirals also there is in the form of a meander. Meander line inductors have lower inductance per unit area than coil inductors. Coil64 has a module to calculate such inductor. The inductance of the inductor is calculated by the following empirical formula:

meander pcb inductor formula

where:

L – inductance of meander (µH)
N – number of turns
a – length of a lead (mm)
h – height of the meander (mm)
d – width of the meander (mm)
b – half of the height h (mm)
W – width of the printed strip (mm)

This expression has been obtained by fitting according to a great number of fabricated inductors

Inductance is calculated with accuracy ±12%.

meandr PCB coil calculation

Reference:

Compact Form of Expressions for Inductance Calculation of Meander Inductors - SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol. 1, No. 3, November 2004

Comments (14)

Comments

#11

Vincent

2018-01-30 11:32

Hi,

I want to use meander inductors in my RF amplifier on the top side of the PCB. Should the bottom side of the PCB, so below the meader inductor be coper plated or should I remove the copper? I cant find it anywhere on this website.

Thank you!

Quote

#12

Coil32 admin

2018-01-31 14:17

You have to remove the copper from the opposite side of the PCB facing the inductor

Quote

#13

Kim Justin

2018-03-13 14:40

Hi, I was wondering the PCB flat style coil calculator for Spiral or Meander calculations can be converted using flat Litz or Copper Tubing?

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#14

Coil32 admin

2018-03-15 15:48

These calculations are based on a lot of measurements of the fabricated inductors. These inductors were as a PCB trace on the RF4 substrate. If we will take the litz or copper tubing then the conditions around the conductor will be changed and the value of the inductance too.

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