The 1D1304-6 from TTM Technologies is a Directional Coupler with Frequency 800 MHz to 1.2 GHz, Coupling 6 dB, Coupling Variation +/-1.00 dB, Frequency Sensitivity ±0.40 to 60 dB, Directivity 20 dB. Tags: Surface Mount. More details for 1D1304-6 can be seen below.