Directional couplers are important components for use in isolating, separating, replicating, and combining microwave signals. They can serve as accurate attenuator measurements as they eliminate reflections. They are incredibly useful in sampling RF signals for use in detectors, gain control and feedback loops. The APTDC-20-02001800-SMA is part of AmpliTech’s catalog of single and dual directional couplers that offer a wide range of coupling values and frequency ranges. Specifications Frequency Impedance Coupling Frequency Sensitivity (Flatness) Mainline Loss¹ Directivity Return Loss (In and Out) Return Loss (Coupling) Input Power (CW)² Min.. 2 T TypYTyp 50 ± 1.0 ± 0.45 20 0.8 17 18 18 14 13 13 Max 18 ± 1.0 1.3 20 nMinit GHz Ohm dB dB dB dB dB dB Watts (CW) Mechanical Connector Interface Operating Temperature2 Storage Temperature Weight Estimate Humidity Environment Indoors Use Only SMA-Female -55 to +85 °C -55 to +100 °C 1.4 oz (40 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 1. Mainline loss includes coupling loss. 2. 3. 4. 5. Non-RoHS solder is available upon request. All output ports should be terminated in a 50-ohm load with 1.2:1 max VSWR Electrical specifications at +25 °C only. To the best of our knowledge at the time of publication. 155 Plant Ave Hauppauge, New York 11716 • Tel: 631-521-7831 • Fax: 631-521-7871