Waveguide Isolators

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Dolph Microwave offers a standard product line of waveguide isolatorsranging from WR70 to WR 900. For more information feel free to call us and discuss your needs with one of our sales engineers.

Difference Between Circulator and Isolator

A circulator is direct the flow of microwave or radio-frequency signals in RF systems which is normally a 3 or 4-port components. The operational principle is transmits input signal from 1 port to the next, The ports can be as input signal, output signal or termination and generally have a line impedance of 50Ω.

An isolator is a circulator as well but the difference is it has only 2 ports that transfer a signal, while the third port has a termination resistor connecting with ground. It protects RF components from excessive signal reflection. If port A signal is well matched with port B, then the signal to port B lowest loss. If not match, the signal will pass to port C, which will be dissipated into heat. Port A is the input and port B is output.

Difference Between Circulator and Isolator

Application and Clarification of Waveguide Isolator

The isolator in microwave engineeringis a non-reciprocal two-port device that transmits electromagnetic waves in one direction, and the reverse transmission of the signal is isolation, so the isolator is also called an inverter.

In microwave systems, it is mainly used to control the transmission of electromagnetic wave signals in one direction, and at the same time reduce the influence of reflected signals on the system or on the source.

The typical specifications of the full-band isolator are shown in the table above, and the waveguide specifications, flanges, operating frequencies, indicators, etc. Can also be customized according to customers' requirements.

There are many microwave waveguide manufacturers, but we are one of the best choices for you.

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