Microstrip-waveguide transition for transmitting electromagnetic wave signal

A microstrip-waveguide transition for transmission of electromagnetic wave signals, comprising:

• a feeding part for providing an electromagnetic wave signal to be transmitted through the waveguide;
• a ground part formed at a predetermined interval from the feeding part;
• and
• a via part for electrically connecting the feeding part and the ground part along a height direction of the waveguide,
• wherein the microstrip and the waveguide are coupled alongside each other along a length direction of the waveguide.

A microstrip-waveguide transition for transmission of electromagnetic wave signals, comprising:

• a first substrate;
• a second substrate disposed below the first substrate;
• a feeding part formed above the first substrate to provide an electromagnetic wave signal to be transmitted through the waveguide;
• an intermediate part formed between the first substrate and the second substrate;
• a ground part formed below the second substrate;
• a first via part formed through at least a part of the first substrate and the second substrate along a height direction of the waveguide to electrically connect the feeding part and the intermediate part;
• and
• a second via part formed through the second substrate along the height direction of the waveguide to electrically connect the intermediate part and the ground part,
• wherein the microstrip and the waveguide are coupled alongside each other along a length direction of the waveguide.

A method for transmission of electromagnetic wave signals, comprising the steps of:

• generating an electromagnetic wave signal;
• and
• propagating the generated electromagnetic wave signal along a feeding part to radiate an electromagnetic wave that forms an electric field in a direction parallel to or substantially parallel to a direction perpendicular to a length direction of a waveguide,
• wherein a microstrip and the waveguide are coupled alongside each other along the length direction of the waveguide.