AmpliTech model APTQH-90-02000400-SMA is a 90-degree hybrid coupler that operates from 2 to 4 GHz with an impressive power handling capacity of up to 50 watts (CW). This coupler has a typical isolation of 25 dB and typical return loss of 22 dB. Specifications Frequency Impedance Phase Difference Total Loss¹ (J1-J3 and J1-J4) Isolation Return Loss (all ports) Amplitude Balance (±) Phase Balance (±) Input Power (CW)² Min.. 2 T TypYTyp Max 4 19 17 50 90 3.2 ±0.5 23 24 0.3 2.7 ±0.9 0.9 6.0 50 nMinit GHz Ohm Degrees dB dB dB dB Degrees Watts Mechanical Connector Interface Operating Temperature2 Storage Temperature Weight Estimate Humidity Environment Indoors Use Only SMA-Female -55 to +85 °C -55 to +100 °C 0.6 oz (17.9 g) 10-90% non-condensing Materials RoHS /REACH Compliant3 Enclosure Connectors Contacts Insulators Finish Gray Paint Yes Aluminum Stainless Steel Be Cu, Gold Plated PTFE Total Loss includes insertion loss and frequency sensitivity. All output ports should be terminated in a 50-ohm load with 1.2:1 max VSWR. To the best of our knowledge at the time of publication. Electrical specifications at +25 °C only. 1. 2. 3. 4. 5. Non-RoHS solder is available upon request. 155 Plant Ave Hauppauge, New York 11716 • Tel: 631-521-7831 • Fax: 631-521-7871