FPC07180

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RF directional couplers have been widely used in radio communication systems. They are typically used to sample the power of an RF signal flowing in one direction in order to determine its magnitude without affecting the signal travelling in the opposite direction. One type of RF directional coupler, the FPC07180, employs an active-balun coupler-with capacitively coupled output.

The FPC07180, operates in the frequency range from 0.5 to 18GHz, has a maximum conversion loss of 3.2 dB, and offers an excellent 70 dB port-to-port isolation. This makes it ideal for RF applications such as antenna measurement, signal monitoring, and system architectures featuring multiband operation. Additionally, this directional coupler is configurable as a single or dual-port device, with a variety of options available for gain control, slope compensation, and harmonic rejection.

FPC07180 Application Fields

The FPC07180 is used across a variety of RF applications, including antenna matching measurements, dual-band or multiple-band systems, RF signal monitoring and test instrumentation, and EMC testing. It is ideally suited for antenna and impedance matching measurement setups, as it offers excellent performance even when signals are present in two different frequency bands. It is also well-suited for EMC testing, due to its wide frequency range and low conversion loss.

In multi-band systems, the FPC07180 can be employed to measure the power, forward or reflected, received on each of the frequencies used in the system. It is also used to monitor RF signals for test instrumentation and EMC testing. For example, the FPC07180 can be used to measure the power of transmitting and receiving antennas in order to adjust for optimizing antenna performance.

FPC07180 Working Principle

The FPC07180 directional coupler utilizes an active-balun coupler-with capacitively coupled output. It works by splitting the incoming signal, which typically consists of two parts, or modes. The first is a signal travelling in the same direction as the incoming signal, known as the forward path. The second is a signal travelling in the opposite direction, known as the reverse path. The two signals are split into two independent paths and the forward- and reverse-signal components are combined again at the output port.

The amount of the signal that is output can be controlled by adjusting the gain of each port. This allows for both the magnitude and phase of the output signal to be adjusted. Additionally, the coupler can be configured with different sensitivity and slope compensation, which is useful for optimizing antenna performance.

The FPC07180 directional coupler is a powerful and versatile tool for monitoring, measuring, and optimizing RF systems. It is widely used in a variety of applications, from antenna matching measurements to EMC testing. Its wide frequency range and excellent performance make it an ideal choice for any RF application.

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