The difference between power divider and synthesizer

First of all, the principle of power divider and combiner is different.

1, the power divider is a device to realize signal distribution.

2. A combiner combines signals in the same frequency band and different frequency bands.

3. There is no problem in using combiner as power distributor.

4. When the power divider is used as a combiner, it should be noted that its input signals need equal amplitude.

5, but when they are used together, attention should be paid to power capacity and frequency range.

Duplexers and combiners are different in my opinion. Duplexers are usually used at the output and input of equipment to isolate signals in different frequency bands. Such as uplink and downlink signals of mobile communication. Combiners are usually used for power synthesis in hardware circuits. For example, in order to obtain a signal of 40dbm, two power amplifiers with an output power of 20dbm can be combined. Their internal structures and principles should also be different. The inside of the duplexer should be a filter cavity (large duplexer), and the inside of the combiner should be a coupling circuit.

Second, the word difference between power divider and combiner

The term "combiner" is used in two places to distinguish one from the other, that is, a combiner with different frequencies, also known as an antenna combiner. Simply put, several filters use one port to save the number of antennas. Another occasion is also called a combiner. I prefer to call it a power combiner. Is the power divider the other way around? Ask an expert to identify!