CPL-5220-10-TNC-79

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Radio-frequency (RF) directional couplers are essential tools for measuring the power, amplitude, phase, and frequency of RF signals. RF directional couplers are commonly used in a wide array of industrial, defense, consumer and communications applications. The CPL-5220-10-TNC-79 is an RF directional coupler specifically designed for the high-frequency, typically microwave and millimeter wave, band. This coupler has exceptional benefits, including excellent performance and accuracy, and robust reliability.

Application Field

The CPL-5220-10-TNC-79 has been designed for use in frequency bands ranging from 10 MHz to 6 GHz. It has been specifically engineered for harsh industrial and military RF applications, providing superior signal power measurement capabilities regardless of the ambient conditions. This highly reliable coupler can be used in high-power applications and can be connected to other components in the signal chain. It can also be used in aerospace applications, where it can handle very accurate measurements of signal power in extreme temperatures.

Performance Characteristics

The CPL-5220-10-TNC-79 contains two main parts, one with a direct path and one with an offset path that provide a power connection. By comparing the power and direction of the signals from both paths, the coupler can measure the power and amplitude of an incoming signal without the need for intermediate reference components. The CPL-5220-10-TNC-79 features a high isolation of more than 40 dB, making it capable of suppressing interfering signals and providing only the desired ones. Additionally, it offers a low VSWR (voltage standing wave ratio), allowing it to measure signals accurately without being affected by attenuation or reflection from the transmission line. Furthermore, the CPL-5220-10-TNC-79 features a high return loss of better than 30 dB, enabling the highest accuracy measurement of the power and amplitude of the incoming signal.

Working Principle

The CPL-5220-10-TNC-79 is based on the standard RF directional coupler working principle, which is a 3-port device that is designed to measure signal power while isolating the signal source from any device connected to it. The device works by injecting a portion of the signal obtained from the source port to port 2 and passes the majority of the signal directly to the load port. The size of the portion injected into port 2 is determined by the coupling factor which is usually adjustable and set by the user. The isolation port will measure the output of the two signals of port 1 and port 2 and provide an output which is proportional to the power of the incoming signal. This difference between the power of the two ports is the direct indication of the power delivery to the output port. This in turn indicates the amount of power being delivered by the source port.

The CPL-5220-10-TNC-79 offers improved accuracy, wide frequency range coverage and reliability compared to other, standard RF directional couplers. Its low VSWR and high return loss, together with its high isolation capabilities make it the perfect choice for measuring the power and amplitude of multi-band RF signals in harsh environments.

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