CP0603A1747MLTR

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RF directional couplers are used in radio frequency circuits for Tap off a specified fraction of the main power flow. RF directional couplers have a variety of applications including power measurement, signal sampling, antenna switching, impedance matching and more. The CP0603A1747MLTR is a RF Directional Coupler from Murata. It is designed to provide a combined variable gain switch and diode detector circuit. It is a high linearity coupler and offers good power handling capabilities and impedance matching.

Features

1. DC to 6 GHz operating frequency range.
2. High linearity, low insertion loss.
3. Low reflected power.
4. High power handling capabilities.
5. Low port-to-port isolation.
6. Altitude and humidity resistance.
7. High Common-Mode Rejection Ratio.
8. Low EMI emissions.
9. Wide impedance range, no impedance mismatch.

Application Fields

The CP0603A1747MLTR RF directional Coupler is suitable for use in a range of applications. These include:

• Wireless communication: Wi-Fi, point-to-point radio, cellular, satellite.
• Military applications: radar systems, GPS systems, avionics systems.
• Test instrumentation: signal generators, signal analyzers.
• Radio broadcast: FM/AM broadcast receivers, cell antennas.
• Automobile industry: automated components, ECUs.

Working Principle

The CP0603A1747MLTR RF Directional Coupler works by tapping off a specified fraction of the main power flow. It is composed of two banks of tapped capacitors, two ports, and one or two optional devices. The tapped capacitors form a tee network, allowing a portion of the forward power to the “tap” port to be coupled to the output port, while the unused, reflected power is dissipated in the load. The tap port also serves as a directional element where incoming signals to the output port are blocked.If an optional load is connected to the tap port, the device provides gain control as well as directionality, allowing for power control applications.The CP0603A1747MLTR is also equipped with an integrated diode detector which provides a temperature-stable detected output signal when current passes through the coupler. This feature makes the device ideal for low power applications such as test instrumentation.

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