Tunable waveguide‐to‐microstrip transition for W‐band antenna | Zendy

Dewantari Aulia | Zendy; Kim Jaeheung | Zendy; Jeon SeYeon | Zendy; Kim Sumin | Zendy; Ka MinHo | Zendy

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Tunable waveguide‐to‐microstrip transition for W‐band antenna

Author(s) -

Dewantari Aulia,

Kim Jaeheung,

Jeon SeYeon,

Kim Sumin,

Ka MinHo

Publication year - 2019

Publication title -

iet microwaves, antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.555

H-Index - 69

eISSN - 1751-8733

pISSN - 1751-8725

DOI - 10.1049/iet-map.2018.5488

Subject(s) - microstrip , waveguide , extremely high frequency , materials science , microstrip antenna , antenna (radio) , optics , optoelectronics , frequency band , substrate (aquarium) , w band , patch antenna , physics , telecommunications , computer science , oceanography , geology

At millimetre‐wave frequencies, the discrepancy between simulation and measurement comes from the relative permittivity tolerance and fabrication tolerance. This discrepancy can mainly cause resonant frequency shift. A tunable waveguide‐to‐microstrip transition for the W‐band antenna is proposed to overcome this discrepancy. A typical transition consists of a microstrip probe on a substrate and a waveguide back short in a fixed structure. The tunability has been designed by making a movable back short through WR‐10 waveguide. This design can change the back‐short distance mechanically to tune resonant frequency. The tunability of this design has been verified with a W‐band substrate integrated waveguide (SIW) slot array radar antenna.

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