Transit structure of waveguide and siw
AssigneeHyundai Mobis Co., Ltd.
InventorSung Joo KIM
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Abstract
A transit structure of a waveguide and a SIW is provided. According to the present invention, a SIW and a waveguide are directly connected so that when a signal is transited with a reduced loss and a signal is transmitted while satisfying a frequency band width required for an automotive radar. Further, signal transmission characteristic at every frequency in a bandwidth may be uniformly maintained. Further, an additional dielectric substrate is not required so that a reduced size, a reduced weight, and a reduced cost may be achieved and a process of bonding different substrates is not required.
Claims10
A transit structure of a waveguide and a SIW (Substrate Integrated Waveguide), comprising:
- a SIW;
- and
- a waveguide which is formed in the form of a metallic tube and is directly coupled to a lower surface of the SIW in a perpendicular direction,
- wherein the SIW includes
- a dielectric substrate;
- a first conductor which is disposed on an upper surface of the dielectric substrate;
- a second conductor which is disposed on a lower surface of the dielectric substrate, a region of the second conductor corresponding to an aperture of the waveguide being etched to form a non-resonating slot;
- a plurality of vias which is disposed in the dielectric substrate in accordance with a predetermined pattern to form a transmission path through which the signal is transmitted in the SIW and an impedance matching box which transits a signal which is transmitted to the SIW or the waveguide;
- and
- a stub which is formed in a region where the non-resonating slot is formed in order to perform impedance matching between the SIW and the waveguide.
Dependencies are inferred from the claim text.