The X4C55J1-03G from TTM Technologies is a 90° Hybrid Coupler that operates from 5 to 6.3 GHz. This 3 dB coupler has an insertion loss of less than 0.5 dB and provides more than 20 dB of isolation. It has an amplitude balance of ±0.5 dB and a phase balance of ±4°. The coupler can handle an input power of up to 5 W and has an operating temperature range from -55 to +140°C. It is available in a surface-mount ultra-low profile 0805 package that measures 0.08 x 0.05 inches and is ideal for use in cellular and 5G applications.
