Model 11305-20 Rev. A Directional Couplers 20 dB Description The 11305-20 is a low profile 20dB directional coupler in an easy to use surface mount package covering 1.0 to 2.0 GHz. The 11305-20 is ideal for power and frequency detection and can be used in most high power designs. Parts have been subjected to rigorous qualification testing and units are 100% tested. They are manufactured using materials with x and y thermal expansion coefficients compatible with common substrates such as FR4, G-10 and polyamide. ELECTRICAL SPECIFICATIONS** Features: * * * * * * * 1.0 - 2.0 GHz Low loss High Directivity Surface Mountable Tape And Reel Convenient Package 100% Tested Frequency Mean Coupling Insertion Loss VSWR Freq. Sensitivity GHz dB dB Max Max:1 dB Max 1.0 - 2.0 20.0 1.0 0.35 1.20 0.80 Directivity Power Handling JC dB Min Watts C / Watt C 18 60 14.2 -55 to +85 Operating Temp. **Specification based on performance of unit properly installed on microstrip printed circuit boards with 50 nominal impedance. Specifications subject to change without notice. Outline Drawing Pin 1 .560.010 [14.220.25] Bottom View (Far-side) Side View Top View (Near-side) .073.007 [1.850.18] Pin 2 .024.004 TYP [0.610.10] Pin 2 Pin 1 .350.010 [8.890.25] GND Pin 4 Denotes Array Number Dimensions are in Inches [Millimeters] 11305-20 Rev A Mechanical Outline .050.008 [1.270.20] GND Pin 3 Pin 3 .050.008 [1.270.20] Pin 4 Part Is Symmetric About All Axis Available on Tape and Reel For Pick and Place Manufacturing. USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Model 11305-20 Rev. A Typical Performance: 0.9 GHz. to 2.1 GHz. Return Loss 11305-20 0 -20 -10 R eturn Loss (dB) C oupling (dB) Coupling 11305-20 -19.5 -20.5 -21 -21.5 -20 -30 -40 -22 900 1200 1500 1800 -50 900 2100 1200 1500 Frequency (MHz) Directivity 11305-20 2100 1800 2100 Transmission Loss 11305-20 0 0 Transm ission Loss (dB) -10 D irectivity (dB ) 1800 Frequency (MHz) -20 -30 -0.1 -0.2 -0.3 -40 -50 900 -0.4 1100 1300 1500 1700 1900 2100 900 1200 1500 Frequency (MHz) Frequency (MHz) Pin Configuration Mounting Footprint To ensure proper electrical and thermal performance there must be a ground plane with 100% solder connection underneath the part Part Is Symmetric About All Axis Multiple plated thru holes to ground .460 [11.68] .250 [6.35] .034 TYP [0.86] .063 SQ TYP [1.60] Dimensions are in Inches [Millimeters] 11305-20 Rev A Mounting Footprint USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Available on Tape and Reel For Pick and Place Manufacturing. 50 Transmission Line