A Method for Adjusting the Phase of Electromagnetic Waves in a Waveguide Using Gradient Ridges

Abstract

The invention provides a method for adjusting electromagnetic wave phase in a waveguide by use of a gradually-changing ridge. The method comprises the following steps: step 1, an electromagnetic wave is inputted by a standard rectangular waveguide, is transited from a step gradually-changing rectangular waveguide to an expansion rectangular waveguide, and after passing through a coupling waveguide, is equally divided in terms of power into fourth paths of electromagnetic waves for distribution and transmission; and step 2, each path of the fourth paths of electromagnetic waves, after respectively passing through a double-end gradually-changing ridge waveguide, is outputted by the standard rectangular waveguide. By using such a scheme, a waveguide is internally provided with a gradually-changing ridge whose two ends are gradually changed and whose height can be adjusted, and through adjusting the height and length of the gradually-changing ridge in the waveguide, the problems of equal phase or phase shift difference in the transmission process of each path of waveguides in an array transmit-receive system can be flexibly solved.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic wave phase adjustment in a waveguide, and in particular relates to a method for adjusting the electromagnetic wave phase in a waveguide by using a gradual ridge. Background technique [0002] The rectangular waveguide not only has the advantages of simple structure and high mechanical strength, but also has a closed structure, which can avoid external interference and radiation loss. Because electromagnetic waves propagate in the air in the waveguide, and the metal walls are good conductors with high conductivity, the dielectric loss and conductor loss are very small, so in microwave and millimeter wave radar, guidance and communication systems, rectangular waveguides have become Widely used guided wave structure. like Figure 1-Figure 2 Shown is a four-channel rectangular waveguide power distribution and synthesis transmission structure widely used in a microwave and millimeter wave mult...

AI Technical Summary

Problems solved by technology

In order to improve the distribution and synthesis efficiency of electromagnetic signals, the phase consistency among the four channels, channel 1 to channel 2, channel 1 to channel 3, channel 1 to channel 4, and channel 1 to channel 5 must be highly consistent, so that the four channels The electrical lengths of the waveguide channels must be equal. At this time, the four ports of channel 2, channel 3, channel 4, and channel 5 cannot be guaranteed to be in the same plane, which increases the difficulty of structural processing and assembly complexity, resulting in As the physical size increases, the electromagnetic energy loss on the path also increases, which will seriously affect the efficiency of transmitting and receiving electromagnetic signals.

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