The SH19557 from Sigatek is a 180 Degree Hybrid Coupler that operates from 1 to 18 GHz. This 3 dB coupler equally divides an input signal into two signals with a 180-degree phase difference between them or combines two signals to a common signal. The device has an insertion loss of less than 3.5 dB, and isolation of over 18 dB, and can handle an average power of up to 20 watts and a peak power of up to 1000 watts. It has an amplitude balance of ±0.8 dB and a phase balance of ±10 degrees. This hybrid coupler is available in a module with SMA connectors.
