1G1304-30

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RF directional couplers are widely used in various fields. 1G1304-30 is one of them and often used in mobile communication devices and directional communication antennas. This article introduces the application field and working principle of 1G1304-30.

Application Fields

1G1304-30 is a short distance microwave RF directional coupler designed for use in mobile communication systems. It is mainly used in microwave communication systems, radar systems, control systems, and navigation systems. It is suitable for frequency bands of 700MHz to 6000MHz and is mainly used in the 6GHz frequency band. It is usually integrated into RF terminal modules, transceivers, and radio wave transmission antennas in the communication system to measure the forward and reverse power of the antenna, and is widely used in the communication industry.

Working Principle

1G1304-30 is a four-port device with two signal ports, an isolation port, and an output port. The signal port is where the signal is applied to the coupler. When a signal is applied to the two signal ports, the output port will output a signal with less power than the input, and the isolation port outputs a signal with almost no power.However, the signal from the signal port and the isolation port will have different phase angles. This phase difference plays an important role in the working principle of the 1G1304-30. The RF directional coupler works by splitting a signal from a signal port to an output port and an isolation port. And then the signal is mixed together with different phase angles in the coupler in order to have different power outputs at the output port and the isolation port. The main function of the 1G1304-30 is to measure the forward/reverse power of the antenna in the communication system. It can precisely measure the forward/reverse power, and its good directivity ensures the accurate power measurements when signals arrive from different directions.

Conclusion

1G1304-30 is a RF directional coupler which is widely used in mobile communication devices and directional communication antennas. Its application field covers frequency bands from 700MHz to 6000MHz, mainly in the 6GHz frequency band. As for the working principle, when a signal is applied to the two signal ports, the output port will output a signal with less power than the input, and the isolation port outputs a signal with almost no power. And these two signal ports are mixed together with different phase angles in order to obtain different power outputs at the output port and the isolation port.

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