The MQH-1434CH from Marki Microwave is a 90 Degree Hybrid Coupler with Frequency 14 to 34 GHz, Insertion Loss 1.2 to 2 dB, Isolation 9 to 17 dB, Coupling 3 dB, Amplitude Balance ±0.7 to ±1.1 dB. Tags: Die. More details for MQH-1434CH can be seen below.