Meaning
Regulatory authorizations that define the specific conditions under which a transmitter module can be integrated into host devices without full re-testing govern product development. The modular approval scope dictates the limits on antenna gain, separation distances and co-location with other transmitters. Developers must adhere to these limits to reuse the module’s FCC or CE certification on their final product.
Limit Definition
Specific antenna types and maximum gains are specified in the module’s original grant of authorization. If a host designer uses an antenna with a higher gain than permitted, the modular approval scope is exceeded. This violation requires a permissive change or a new certification for the entire host system.
Board Constraint
Layout guidelines provided by the module manufacturer must be followed to ensure the transmitter operates within certified parameters. These guidelines cover ground plane design, shielding and trace routing for the antenna interface.
System Integration
Integration of the module into portable devices, where the antenna is close to the user’s body, typically requires SAR testing. This testing falls outside the standard modular grant and must be addressed by the host manufacturer. The handover documentation must clearly state these boundaries to prevent compliance issues.
These constraints are necessary for maintaining a streamlined path to market.