Model WMC-0.3-8-10dB-S from Werbel Microwave is a directional coupler that covers 300 MHz to 8 GHz with broadband flat coupling response, high directivity, and excellent return loss performance.  Frequency sensitivity is ±0.6 dB typical.  High directivity of 25dB typical.  Mainline insertion loss of 1.3dB typical includes loss due to coupling factor.  Return loss 23dB typical.  Aluminum enclosure measures 6.00 x 0.73 x 0.50 inches with threaded mounting holes.  SMA Female connectors.  The device is RoHS compliant but may be special ordered with Lead solder to support military applications.