[SOLVED] SIM 900 pcb design: "keepout areas under the module"

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abdi110

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Hi everyone,
In sim900 module there are 2 keepout areas under the module.
Do I have to fill these areas in the PCB?
 

DO NOT have any PCB tracks or fills in those areas, follow the SIM900 hardware document for the keep out area sizes.

Cheers
 
sorry i am confused,
in the SIM900 hardware document there is a pic shows that it has to be filled.
 

in the SIM900 hardware document there is a pic shows that it has to be filled.
Click to expand...
Which picture?

The term "keepout area" seems somehow self-explanatory, isn't it? Reviewing Figure 38 (SIM900 Hardware Design V2.02) clarifies the reason of the keepouts. It's below the SIM testpoints to assure that they aren't unintentionally shorted. The remaining area below the module will be usually copper-filled.
 
Here is an example for the PCB keepout from on of my boards.

Cheers

 

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So many thanks dear friend for your complete info.
 

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