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- W2933147992 abstract "A cavity-backed modified dumbbell-shaped slot antenna based on a substrate integrated waveguide technology is proposed in this letter. Compared with the traditional dumbbell-shaped slot, the modified dumbbell-shaped slot not only introduces several new resonant points, but also makes the antenna obtain a higher gain. In addition, the high-order resonant modes (TE <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>102</sub> , TE <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>301</sub> , TE <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>302</sub> ) inside the subcavity are excited by the ground coplanar waveguide feeding structure, and the broadband impedance bandwidth can be achieved by making the high-order modes close to each other. The measured results show that the proposed antenna achieves an impedance bandwidth of 26.7% from 18.2 to 23.8 GHz and a peak gain of 9.5 dBi at 20.4 GHz. The cross-polarization levels of the antenna are around -40 dB at three measured frequencies." @default.
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- W2933147992 date "2019-05-01" @default.
- W2933147992 modified "2023-10-16" @default.
- W2933147992 title "Broadband SIW Cavity-Backed Modified Dumbbell-Shaped Slot Antenna" @default.
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- W2933147992 doi "https://doi.org/10.1109/lawp.2019.2906119" @default.
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