SWRS126-014

Solid ground

plane and vias

No trace

under

module

Signal trace

run on third layer

Top layer

Bottom layer

CC3000

SWRS126 – NOVEMBER 2012

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Figure 11. Module Layout

RF Trace and Antenna Layout Recommendations

Observe the following recommendations for RF trace and antenna layout (see also Figure 10):

•

RF traces must have 50-

Ω impedance (microstrip transmission line).

•

RF trace bends must be gradual with a maximum bend of approximately 45 degrees and with trace mitered.

RF traces must not have sharp corners.

•

There must be no traces or ground under the antenna section.

•

RF traces must have via stitching on the ground plane beside the RF trace on both sides.

•

RF traces must be as short as possible. The antenna, RF traces, and the module must be on the edge of the

PCB product in consideration of the product enclosure material and proximity.

14

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Product Folder Links: CC3000

Not Recommended For New Designs