Connecting interface for non-coplanar circulator and power amplifier assembly

Abstract

The invention provides a connecting interface for a non-coplanar circulator and a power amplifier assembly. The connecting interface comprises a circulator, a connector and an air plate line, and is characterized in that the circulator is connected with the connector through the air plate line; and the upper end face of one end of an inner conductor of the air plate line is connected with an output port of the circulator, and the lower end face of the other end of the inner conductor of the air plate line is connected with a semicircular inner conductor of the connector, so that the air plate line is divided into an upper chamber and a lower chamber. According to the invention, the cavity effect can be avoided, and the total reflection power resistance of the power amplifier assembly can be satisfied.

Description

technical field [0001] The invention relates to the field of microwave communication, and in particular discloses a connection interface between a different-plane circulator and a power amplifier assembly. Background technique [0002] With the development of radar technology, the output power of the power amplifier components of the radar transmitter is required to be larger and larger, and in order to provide the reliability of the power amplifier components, it is required that the power amplifier components can work with total reflection during design. Design a high-power circulator at the port; this type of circulator requires high power resistance and low insertion loss; often due to the limited size of the power amplifier component, the size of the circulator is also limited; when designing the power amplifier component, due to Limited by size (height direction), the input and output pins of the circulator and the output pins of the power amplifier components are ofte...

AI Technical Summary

Problems solved by technology

[0003] In addition, the microstrip line at the output end of the circulator is close to a 90︒ bend, resulting in relatively large output standing waves at the port and insertion loss of the circulator;

[0004] like figure 1 As shown, the existing form of microstrip line 33 is used. In the narrow space inside the power amplifier component, the cavity effect is more likely to occur on the microstrip line, resulting in a great change in the output power of the entire final stage power amplifier component. There is a sparking phenomenon, so that the circulator is damaged; in order to solve the cavity effect, a cover plate 34 is added in the narrow space to reduce the cavity effect (such as figure 2 shown), but this method will cause the L-shaped output port of the circulator to spark with the side wall under the condition of high-power total reflection, so that the power amplifier components cannot be used normally

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