Coaxial Type N Directional Couplers. Mega Industries manufactures Coaxial Type N Directional Couplers ideal for your low power measurement needs. These low cost couplers are compact and designed to go inline wherever you have a Type N cable type connection. With flat coupling and high directivity over the typical 10% bandwidth, these devices are a high value option for system integration applications. Power handling is typically 200 Watts, or more depending upon frequency and coupling value chosen.