Telecoms, Datacoms, Wireless, IoT


Directional couplers

15 June 2016 Telecoms, Datacoms, Wireless, IoT

The new series of directional couplers from Knowles’ brand, DLI, provides an example of how high permittivity, temperature stable materials can reduce size/weight and provide excellent performance repeatability.

These small parts are manufactured using DLI’s precision thin film technology and offer a beneficial option for microwave systems in commercial, military and space applications.

Designed for a 50 Ω characteristic impedance, they offer a turnkey surface-mount solution for high-frequency power monitoring. The four-port couplers are excellent for high-frequency signal monitoring applications where board space is at a premium and quality power detection or injection is required. COTS devices covering C, X and Ku bands offer quick turn solutions in a solder surface mount package with flexible PCB feed line configuration. Both 10 dB and 20 dB coupling values are available within each frequency band, both with a common footprint.

The devices are designed to provide high directivity, excellent repeatability and stable frequency over the temperature range -55°C to +125°C. Chip and wire mount devices with the same performance are available, in addition to custom solutions to suit individual size and performance parameters.

For more information contact Andrew Hutton, RF Design, +27 (0)21 555 8400, [email protected], www.rfdesign.co.za



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