High-isolation one-to-four phase shift power divider

Abstract

The invention discloses a high-isolation one-to-four phase shift power divider, which comprises an input waveguide, a high-isolation waveguide coupler group, a phase shift waveguide section group, four rectangular waveguide-to-square waveguides, four output square waveguides and eight UG-387 / U flange plates, wherein the input waveguide, the high-isolation waveguide coupler group, the phase shift waveguide section group, the rectangular waveguide-to-square waveguides and the output square waveguides are cascaded with one another, each input port and each output port are connected with one UG-387 / U flange plate, and the structure is divided into an upper cavity and a lower cavity which are fixed through screws and positioned through pins. The high-isolation one-to-four phase shift power divider can be applied to a terahertz multi-path feed system and a multi-path signal calibration system, has the advantages that high isolation exists between the output ports, the structure is simple, the machining is easy, meanwhile, any fixed phase shift quantity can be achieved on the given frequency, the requirement for the phase difference in application is met, energy of an isolation port is radiated to the air, and inconvenience caused by the use of a matched load is avoided.

Description

technical field [0001] The invention belongs to the technical field of terahertz, and relates to a high-isolation one-point four-phase-shift power splitter. Background technique [0002] With the development of terahertz technology, terahertz wave has broad application prospects in many fields due to its unique advantages of high frequency, followed by the increasing demand for terahertz frequency systems. As one of the important components in the multi-channel system, the power divider is used as a power combiner when used in reverse, and plays a huge role in multi-channel feed, power synthesis and multi-channel signal calibration. The advantages of high power capacity and low loss at high frequencies have been widely used. The existing traditional waveguide power divider structure generally has problems such as low isolation and high processing cost. For example, the T-shaped power divider adds a stepped structure to improve the isolation. In the terahertz frequency band,...

AI Technical Summary

Problems solved by technology

The isolation ports of the three couplers in the two stages are bent with waveguide elbows to suppress the output, which has the advantages of simple structure and small output error, but it has not achieved better isolation between output ports, and also cannot achieve phase shift

Images