Directional Couplers
APC RF & Microwave’s line of RF directional couplers from IPP are available as surface mount, drop-in or connectorised packages. Our directional couplers offer some of the widest bandwidths at the highest power levels in the industry. With a unique design that allows us to achieve better coupling flatness, low VSWR and low main line loss, these directional couplers are available in frequencies from 1 MHz to 6.0 GHz, in power levels up to 2,500 watts CW.
The directional couplers can be used to sample RF power in a multitude of applications and are available as dual-directional couplers (DDC), single-directional couplers (SDC), and bi-directional couplers (BDC). They can also be customised to add multiple forward and reverse power sample ports.
For technical advice and datasheets contact APC RF & Microwave on 0330 313 3220 or email [email protected]

Surface Mount Directional Couplers
These surface mount directional couplers are designed for mounting on top of the PC board utilising plated through via holes underneath the coupler to transfer the heat and establish ground when soldered to the PC board. The RF connections are typically on the four corners and are connected by soldering them to the RF traces on the PC board. This unique directional coupler line offers low insertion loss, high directivity, low VSWR and high power capability in a small package. These products are available in narrow and very broad bandwidths making them ideal for power amplifiers, antenna feeds or anywhere a small sample of the RF signal is required.

Drop-In Directional Couplers
Available from APC RF & Microwave, IPP offers some of the widest bandwidths at the highest power drop-in directional couplers in the industry. Their unique designs allow us to achieve better coupling flatness, low VSWR and low main line loss in small sizes. These drop-in directional couplers offer a low-cost option for in-box monitoring compared to connectorised directional couplers and operate from 20 MHz to 6,000 MHz in power levels ranging from 100 to 1000 watts.

Connectorised Directional Couplers
IPP’s connectorised directional couplers offer some of the widest bandwidths at the highest power in the industry. Their unique designs deliver better coupling flatness, low VSWR and low main line loss in small sizes. Depending upon the power, these connectorised directional couplers are available with SMA, N, TC or 7/16 connectors and are designed to be screw-down mounted to a heat sink. Power ratings for connectorised directional couplers range from 100 to 2500 watts with frequency ratings for coaxial couplers ranging from 2 MHz to 6,000 MHz.
> Click for further details of connectorised directional couplers