Quarter-wave loop directional couplers offer a relatively flat coupling response over a 10% frequency bandwidth. Specific coupling factors in the range of 15-30 dB are easily attainable with 30 dB directivity at no additional costs. External loads are used and can be specified between 1 to 10 W to accommodate higher coupled power levels based on your requirements. Padding, or attenuation of the output RF signal prior to the detector is the responsibility of the user. All electrical data is traceable to the National Bureau of Standards.
The vestigial loop directional couplers are extremely compact and provide broadband RF measuring capabilities. The monitors and reflectometers exhibit a 6 dB per octave response. Units are available in 10 dB increments form 30 dB through 70 dB coupling factors and many other values are available at no additional cost. All electrical data is traceable to the National Bureau of Standards.
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