AKF-1256 5.6 GHz RF BAW Filter

Akoustis’ AKF-1256 is a high-performance, ultra-wide bandwidth BAW RF Filter for use in 5.6GHz WiFi applications covering U-NII-2C plus U-NII-3 bands. AKF-1256 utilizes Akoustis’ patented, XBAW™ technology which provides leading RF filter performance. This BAW RF filter provides low insertion loss and meets the stringent rejection requirements enabling coexistence with U-NII-1 and 2A.  This device exhibits high-power handling capabilities necessary for demanding power requirements of the latest WiFi standards. AKF-1256 uses standard laminate packaging and is compatible with high volume, lead-free SMT soldering processes.

Features

  • Ultra small form factor 2.5mm x 2.0mm x 1.0mm
  • Single-ended Tx/Rx ports.
  • Ultra-wide passband covering 345MHz
  • High rejection enables coexistence with adjacent WiFi UNII bands
  • High power rating, maximum +30dBm
  • Low insertion loss passband filter
  • Performance over -40 C to +85C
  • RoHS compliant, Pb-free package

Parameters

Parameter Conditions Units Min. Typ. Max.
Passband   MHz 5490 5665 5835
Insertion Loss

5490 – 5835 MHz

dB   1.9(1) 2.7
Amplitude Variation

5490 – 5835 MHz

dB   1 1.5
Attenuation

30 – 2700 MHz

dB 43 47  

3300 – 5000 MHz

dB 30 35  

5170 – 5330 MHz(2)

dB 50 51  

5975 – 10000 MHz

dB 30 32  

10000 – 12000 MHz

dB 15 20  
Return Loss

5490 – 5835 MHz

  12 15(1)  
Load Impedance   Ω   50  
Power Handling

OFDM MCS0, 20 MHz, PAR 10dB

dBm     30
2nd Harmonic

Po=28dBm (25°C)

dBm/MHz   -40  

1. Averaged over specified frequency at room temperature
2. Only for room temperature

Application Notes

Images & Diagrams