Data Sheet

Table Of Contents

Recommendations for certification

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7 Recommendations for certification

7.1 Module certification regarding port without integrated antenna

WGM160P has been certified with an integrated chip antenna as well as external antennas connected to either RF port or both. The

required antenna impedance is 50 Ω.

Qualified external antenna type

Antenna type

Maximum gain

Connectorized coaxial dipole

2.14 dBi

Any antenna that is of the same general type and of equal or less directional gain as listed in the above table can be used without a need

for retesting in the regulatory areas that have a full modular radio approval (USA, Canada, Korea, Japan). In countries applying the ETSI

standards, like the EU countries, the radiated emissions are always tested with the end-product and the antenna type is not critical, but

antennas with higher gain may violate some of the regulatory limits.

If an antenna of a different type (such as a chip antenna, a PCB trace antenna or a patch) with a gain less than or equal to 2.14 dBi is

needed, it can be added as a permissive change, requiring some radiated emission testing. Antenna types with more gain than 2.14 dBi

may require a fully new certification. Since the exact permissive change procedure is chosen on a case by case basis, please consult

your test house, for example while performing with them the EMC testing of the end-product.

7.2 Locating the Module Close to Human Body

When using the Module in an application where the radio is located close to human body, the human RF exposure must be evaluated.

FCC, IC, and CE all have different standards for evaluating the RF exposure and, because of this, each standard will require a different

minimum separation distance between the Module and human body. Certification of WGM160P allows for the minimum separation dis-

tances detailed in Table 7.1 below in portable use cases (less than 20 cm from human body). The module is approved for the mobile use

case (more than 20 cm) without any need for RF exposure evaluation.

Table 7.1.WGM160P Minimum Allowed Separation Distance From Human Body

Certification

WGM160P with antenna

WGM160P without antenna

FCC

24 mm

ISED

30 mm

The RF exposure must be evaluated using

the end product always when transmitting

with power levels higher than 20mW=13dBm

The RF exposure must be evaluated using the

end product always when transmitting with

power levels higher than 20mW=13dBm

For FCC and ISED, using the Module in end products where the separation distance is smaller than those listed above is allowed but

requires evaluation of the RF exposure in the final assembly and applying for a Class 2 Permissive Change or Change of ID to be applied

to the existing FCC/ISED certificates of the Module. For CE certification, RF exposure must be evaluated using the end product in all

cases.

Note: Placing the Module in touch or very close to the human body will have a negative impact on the efficiency of the antenna thus

reducing range.

With external reference dipole antenna