Projected sensor design

AN4313

6/15

DocID024816 Rev 1

Figure 2. Diamond implementation

2.1.2

H sensor single layer

In this implementation, Tx is on the top layer and forms two rectangles face to face with a

gap between them. The Rx electrode is a wire on the top layer, in the middle of the Tx gap

(see Figure 3).

L

L

Gnd

Gnd

Rx

Rx

Tx

Tx

Tx (bottom layer)

Rx (Top layer)

Gnd

Gnd

Rx

Rx

Tx

Tx

0.2 to 0.5 mm

0.2 to 0.5 mm

Clearance Tx to GND = 1 mm

MS18984V3