Mode Transition Structure of Waveguide and NonRadiativeMicrostrip Line

摘要

The present invention relates to a coupling between the waveguide and the non-radiative microstrip line and the mode conversion structure, and more specifically, between the waveguide formed inward from one side of the metal material and the upper and lower conductor plates having a spacing less than half the wavelength of the use frequency. A method and structure for combining an E-plane strip line and an H-plane strip line with a strip line patterned on an upper surface of a dielectric substrate.;The structure of the probe is produced by a print etching technique (probe), and propose various types of probes to reduce the coupling loss of the circuit, which does not require a coupling device such as attaching the external SMA by inducing a mode conversion as strip line as it is The circuit is simplified, and the TEM or quasi-TEM mode of the circuit is converted to the TE or TM mode of the waveguide so that the total loss is 0.5dB (S21), enabling high efficiency conversion.;The waveguide and non-radiated microstrip line coupling structure has advantages in that the manufacturing frequency is simple at the use frequency of the millimeter wave band, so that the manufacturing cost is low, mass production is possible, and the conversion efficiency is increased during high frequency signal conversion.;Millimeter wave, waveguide, non-radioactive microstrip line, TEM, quasi-TEM, TE, TM