Rf Path; External Antenna; Rf Trace - Panasonic PAN9028 Integration Manual

Wi-fi dual band 2.4 ghz/5 ghz and bluetooth module

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PAN9028 Bluetooth/Wi-Fi Module

5 RF Path

Antenna Warning

The PAN9028 is tested with a standard U.FL connector and with the antenna

listed in the "PAN9028 Product Specification". When integrated into the OEM's

product, these fixed antennas require installation preventing end users from

replacing them with non-approved antennas.

Any antenna not listed in the "PAN9028 Product Specification" must be tested

to comply with FCC Section 15.203 for unique antenna connectors and with

Section 15.247 for emissions.

The PAN9028 module has a 50 ohm RF pin (SMD pad). Connect an external antenna directly or

via a connector (e.g. U.FL) with RF trace to this RF pin. This RF trace shall be matched to

 5.2 RF

50 ohm

Ensure that the RF trace impedance is nearly 50 ohm. It is recommended to use a Coplanar

Waveguide with Ground (CPWG) design. The impedance is related to the trace width, the

distances of the trace to the ground layers and the material of the PCB.

The following design recommendation shall be met:

✓ Trace impedance of 50 ohm

✓ Trace length shall not exceed 2 cm

✓ Via fence around the trace

✓ Crossing no other lines (power supply, interfaces, or clock traces)

Module Integration Guide Rev. 1.0

Trace.

5 RF Path

Page 18 of 34

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