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Agilent 772D, 773D Directional Couplers 2 to 18 GHz
Technical Overview
New Performance Standards in Microwave Couplers
The Agilent Technologies 772D dual directional coaxial coupler and 773D directional coupler are high directivity couplers designed for broadband swept reflectometer measurements and leveling applications in the 2 to 18 GHz frequency range. With their wide frequency coverage, one of these couplers can replace several couplers without performance degradation, thus adding convenience and economy by reducing setup and calibration time. The high directivity and low main line SWR make it possible to achieve excellent source match. The smaller size and light weight of the 773D directional coupler make it much easier to use on the bench. The addition of threaded mounting holes makes it an ideal candidate for use inside equipment in leveling loop applications. Low SWR and flat coupling variation from 2 to 18 GHz and high power capability make these couplers ideal for your most demanding measurement needs.
Agilent 772D Description Frequency range Minimum directivity Dual directional coupler 2 to 18 GHz 39 dB (0.1 - 2 GHz) typical 30 dB (2 - 12.4 GHz) 27 dB (12.4 - 18 GHz) 20 dB (18 - 20 GHz) typical 1.05 dB (0.1 - 2 GHz) typical 1.28 dB (2 - 12.4 GHz) 1.40 dB (12.4 - 18 GHz) 1.29 dB (18 - 20 GHz) typical 1.08 dB (0.1 - 2 GHz) typical 1.30 dB (2 - 12.4 GHz) 1.40 dB (12.4 - 18 GHz) 1.17 dB (18 - 20 GHz) typical 20 dB (2 - 18 GHz) <1.0 dB (2 - 18 GHz) <0.7 dB*+ <0.26 dB (0.1 - 2GHz) typical <1.5 dB (2 - 18 GHz) Main line power handling 0.1-2 GHz 100 W (50 dBm) average typical capability 250 W (54 dBm) peak typical 2-18 GHz 50 W (47 dBm) average 250 W (54 dBm) peak 18-20 GHz N/A N/A Net weight Dimensions (cm) 2.6 kg
Agilent 773D Directional coupler 2 to 18 GHz 39 dB (0.1 - 2 GHz) typical 30 dB (2 - 12.4 GHz) 27 dB (12.4 - 18 GHz) 21 dB (18 - 20 GHz) typical 1.04 dB (0.1 - 2 GHz) typical 1.21 dB (2 - 12.4 GHz) 1.27 dB (12.4 - 18 GHz) 1.16 dB (18 - 20 GHz) typical 1.07 dB (0.1 - 2 GHz) typical 1.30 dB (2 - 12.4 GHz) 1.40 dB (12.4 - 18 GHz) 1.17 dB (18 - 20 GHz) typical 20 dB (2 - 18 GHz) Maximum main line SWR
Maximum coupled line SWR
Nominal coupling (dB) Max. coupling variation with Freq. Tracking between auxiliary arms Maximum main line residual loss
39.1 (L) x 13.34 (W) x 4.13 (H) * With test port shorted and not including source match ripple.
+ Typical relative tracking between 772D and 773D is <0.7 dB.
Connectors
Agilent 772D Test port APC-7; input, incident, and reflected ports Type-N (F) Agilent 773D Input and output ports APC-7; coupled port Type-N (F) Agilent 772D, 773D Option 001 All connectors Type-N (F)
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Outline Drawings
Dimensions in millimeters (inches)
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Product specifications and descriptions in this document subject to change without notice. (c) Agilent Technologies, Inc. 1997, 2000, 2002 Printed in USA, December 10, 2002 5959-8753
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