What is hybrid coupler for outdoor (ODU) in microwave hardware?

The hybrid coupler is the short name for the RF signal combiner/divider. The hybrid coupler is used when two ODUs need to be installed on the same antenna.

What is OMT for outdoor (ODU) in microwave hardware installation?

Introduction to Digital Microwave System Equipment Classification

What kinds of hybrid coupler equipment?

The hybrid coupler is classified into two types, namely, 3 dB balanced hybrid coupler and 6 dB unbalanced hybrid coupler.

• A 3 dB balanced hybrid coupler can split one RF signal into two RF signals that have almost the same power. In other words, each of the two RF signals is attenuated about 3 dB, compared with the original RF signal.
• A 6 dB unbalanced hybrid coupler can split one RF signal into two RF signals that have different power. The RF signal that has the smaller power is attenuated about 6 dB, compared with the original RF signal.

Functions and Working Principle

The hybrid coupler is used to combine and split RF signals and consists of a waveguide cavity.

• The waveguide cavity is the major part of a hybrid coupler. It has three ports. They are the common interface, primary branch interface, and secondary branch interface.
• In the transmit direction, the RF signals received by the two branch interfaces are combined into one in the waveguide cavity, which is then output through the common interface.
• In the receive direction, the RF signal received by the common interface are divided into two RF signals in the waveguide cavity, which are then output through the two branch interfaces.

Here is a function:

• In the transmit direction, the hybrid coupler combines two ODU RF signals into one RF signal which is then transmitted to the antenna.
• In the receive direction, the hybrid coupler divides the RF signal received from the antenna into two RF signals which are then transmitted to the ODU.