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Keysight Technologies is a global leader in electronic test and measurement solutions, delivering advanced instruments and software for communications, aerospace, defence, automotive and semiconductor applications. Its extensive portfolio includes oscilloscopes, signal generators, spectrum analysers, network analysers, power supplies, multimeters and protocol test solutions. Trusted by engineers and researchers worldwide, Keysight products accelerate innovation, product validation and manufacturing efficiency.
These compact, broadband directional couplers are important components for many microwave measurement systems. Although most modern signal generators and sweepers supply signals whose power levels are stable with respect to frequency, variations in signal level are introduced due to the cable losses (which increase with frequency) and the frequency response of other components in the signal path. Inserting a directional coupler into the system with a suitable microwave detector to supply feedback to the ALC circuit of a signal generator or sweeper provides a leveled signal at a particular point in the system.
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