Getac Technology Corporation ZX70U Manual Do Utilizador
AS3993 – AN13 – Received Signal Strength Indicator (RSSI)
www.ams.com
Revision 2.0 / 6/22/12
page 10/17
6 Reader Part
The reader part contains all RF and UHF RFID relevant components. In order to keep PCB costs
low the reader part is 2-layer PCB only while all components are located on the top layer. The
component placement was chosen to reach a small form factor PCB.
6.1 RF Tracks – Impedance Calculation
Figure 5 - RF Tracks - Impedance Calculation (dimensions in mil)
6.2 Reader Part – PCB Stackup
Figure 6 - RF Part - PCB Stackup