CPL-5215-20-SMA-79

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RF directional couplers are components in radio frequency (RF) systems, allowing signal power flow in one direction while measuring that power in the other direction. Their primary purpose is to monitor signal levels for purposes like system control, signal strength detection, and test equipment calibration. The CPL-5215-20-SMA-79 is a particular model of RF directional coupler that has some special features to make it useful in a variety of applications.

Features

The CPL-5215-20-SMA-79 is optimized to work with electromagnetic frequencies up to 18 GHz. The coaxial sleeve has a temperature range of -30 to +85 degrees Celsius and a VSWR of 1.4:1. The insertion loss is 0.3 dB, and the isolation is 70 dB. The ports, which have 50-ohm impedance, are rated for up to 20 watts of power. The unequally-spaced sleeves are 10 millimeters apart.

Application Fields

One of the primary applications of the CPL-5215-20-SMA-79 is antenna testing. Many applications, including research labs, require precise control and monitoring of antennas and RF signals. The directional coupler can be used to monitor signal levels between two antennas for both comparing signal strengths and for calibrating multiple antenna systems. The directional coupler also has use in military systems, where demands for accuracy as well as harsh environmental conditions are common. The coupler can also be used in calibration systems for radio frequency instrumentation.

Working Principle

The working principle of the CPL-5215-20-SMA-79 involves two "unequally spaced sleeves." The proximal sleeve, or main sleeve, is used to isolate the main signal from the reflected signal. The distal sleeve captures power from the reflected signal and isolates it from the main signal. The coupling factor in this type of directional coupler is determined by the ratio of the sleeve distances. This determines the degree to which power is "sampled" from the aperture field. The aperture field is also responsible for the insertion loss and port-to-port isolation of the coupler.

Conclusion

The CPL-5215-20-SMA-79 RF directional coupler is a useful tool for many applications. Its features make it suitable for antenna testing, military systems, and instrument calibration. The working principle of the CPL Relay involves two unequally spaced sleeves that capture samples of the electromagnetic field and isolate them from the main signal. This type of directional coupler is an indispensable tool for making sure that signal levels remain precise in a variety of situations.

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