Wideband leaky‐wave antenna with dumbbell‐shaped slots on substrate integrated waveguides with twisted corrugations Article Swipe

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Utkarsh Pandey , Parulpreet Singh , Narbada Prasad Gupta , Raghavendra Singh , Aakash Bansal ·

YOU? · · 2023 · Open Access · · DOI: https://doi.org/10.1049/ell2.12991 · OA: W4387784116

This letter presents a new thin substrate‐integrated waveguide with twisted integrated–digitated capacitor‐based corrugations that offers a transmission loss < 0.55 dB. The presented waveguide operates at TE 10 mode and is used to present a wideband beam‐scanning leaky‐wave antenna with an array of dumbbell‐shaped slots. The antenna is shown to operate at a frequency band of 25–37 GHz and offers a gain > 13 dBi throughout the frequency band. It has a frequency‐dependent beam‐scanning capability of 6 deg/GHz. The proposed antenna being thin is extremely conformal and is suitable for applications in millimetre‐wave off‐body communication.