In the field of modern communications, RF/microwave circulators and isolators play an important role as key electronic components. They can realize signal separation and protection in the process of signal transmission, and ensure the stable operation of the communication system. For most people, however, these devices remain mysterious and unfamiliar. This article will take you through the basics of RF/microwave circulators and isolators, revealing their importance in the world of communications.

1. Working Principle of RF/Microwave Circulator

1.1 Definition and Structure of Circulators

The RF/microwave circulator is a special electronic component with a closed ring structure. Because of its special design and working principle, it can realize the transmission and separation of signals in the ring structure.

1.2 Working Principle of the Circulator

By introducing the phase difference between positive feedback and negative feedback in the loop path, the input signal is transmitted in the loop structure. The specific working principle includes coupling, phase difference regulation and signal separation.

2. Basic Concepts and Functions of Isolators

2.1 Definition and Classification of Isolators

An isolator is a device used to isolate the transmission of signals between different circuits or components. According to the different operating frequencies, isolators can be divided into radio frequency isolators and microwave isolators.

2.2 Main Functions of Isolators

The main function of the isolator is to prevent the mutual interference and reflection of the signal and ensure the independent transmission of the signal between the various circuits. It can effectively improve the anti-interference ability and stability of the communication system.

3. Application Fields of RF/Microwave Circulators and Isolators

3.1 Wireless Communication System

Rf/microwave circulators and isolators play a key role in wireless communication systems to ensure the stable transmission of signals and the normal operation of equipment. They are widely used in mobile communication, satellite communication and other fields.

3.2 RF/Microwave Test and Measurement

Rf/microwave circulators and isolators are also widely used in RF/microwave test and measurement. They help engineers accurately measure signal parameters, analyze system performance, and troubleshoot.

By gaining an in-depth understanding of the fundamentals of RF/microwave circulators and isolators, we realize the importance and wide application of these devices in the communications world. They play the role of protecting and guarding the stable operation of the communication system.

In the future, with the continuous development of wireless communication technology, RF/microwave circulators and isolators will continue to further innovate and break through. We can expect them to achieve even higher levels of improvement in terms of performance, size and cost. At the same time, with the wide application of emerging technologies such as 5G and the Internet of Things, the demand for RF/microwave circulators and isolators will further increase.