Layout; Two Layer Pcb Reference Design; Figure 14. Restricted Area Under Antenna And Recommended Placement On Pcb - Panasonic eUniStone Application Note Design Manual

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7

Layout

7.1

Two layer PCB reference design

Since eUniStone PBA31309 have an onboard antenna there are only minor considerations for a two
layer PCB layout.

The PCB layers under the antenna shall not contain any metal.

Place module with the antenna facing the edge of the PCB.

Do not place the other sides of the module too close to the edge of the PCB.
Min. 15mm

Figure 14. Restricted area under antenna and recommended placement on PCB.

Application Note
Design Guide
If possible place PBA31309 in the
center of the main PCB.
8.7
5.00
Restricted Area
No copper in any layer
Top View
Use a Ground plane in the area
surrounding the PBA31309 module
wherever possible.
Dimensions are in mm.
44
PAN1322
Min. 15mm
Revision 1.2, 2013-12-18