5 GHz WiFi FEM

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Broadcom AFEM-S105 WiFi Front-End Module (FEM) includes power amplifier, directional coupler, and SPDT antenna switch.

The AFEM-S105 FEM exhibits flat gain and good match while providing linear power efficiency to meet stringent mask conditions.


  • 50 ohm all RF ports
  • High Tx - Rx switch isolation
  • Stable under all loads or conditions
  • Meets 802.11a/n emission mask requirements @ 15dBm
  • Meets FCC 15.205 emission requirements @ 15dBm
  • PAE(PA) > 20%@Pout(ANT) = 15dBm
  • Only 1 external component required


  • Portable WiFi applications
  • WiFi Access points

Not Recommended for New Design

Replacement Part

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Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Not Recommended for New Design
Distrib. Inventory No
RoHS6 Compliant Y
Frequency Range (GHz) 5.15-5.85
Loss (dB) 1.3
Isolation (dB) 28

Reliability Data Sheet1 i
White Papers1 i