Broadband SIW Horn Antenna Loaded with Offset Double-Sided Parallel-Strip Lines

Yufan Cao; Yang Cai; Cheng Jin; Zuping Qian; Lei Zhu; Wei Zhang

doi:10.1109/LAWP.2018.2865587

Broadband SIW Horn Antenna Loaded with Offset Double-Sided Parallel-Strip Lines

Yufan Cao, Yang Cai^*, Cheng Jin, Zuping Qian, Lei Zhu, Wei Zhang

^*Corresponding author for this work

School of Cyberspace Science and Technology

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

A novel substrate integrated waveguide horn antenna loaded with offset double-sided parallel-strip lines (DSPSL) is proposed in this letter. The severe mismatch between horn aperture and free space leads to narrow impedance bandwidth when the substrate thickness is much smaller than the wavelength (typically less than λ06). Two groups of periodic offset DSPSL structure are placed in front of the horn aperture, which acts as an impedance transformer to realize smooth transition. Good impedance matching can be easily realized by modifying the constitutive parameters of the offset DSPSL structure. Measured results show that the impedance bandwidth can be improved up to 20.5% from 14 to 17.2 GHz with a low profile less than λ 0/13. Stable end-fire radiation patterns are obtained across the bandwidth.

Original language	English
Article number	8437151
Pages (from-to)	1740-1744
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	17
Issue number	9
DOIs	https://doi.org/10.1109/LAWP.2018.2865587
Publication status	Published - Sept 2018

Keywords

Double-sided parallel-strip lines (DSPSL)
horn antenna
substrate integrated waveguide (SIW)
wideband

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10.1109/LAWP.2018.2865587

Cite this

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title = "Broadband SIW Horn Antenna Loaded with Offset Double-Sided Parallel-Strip Lines",

abstract = "A novel substrate integrated waveguide horn antenna loaded with offset double-sided parallel-strip lines (DSPSL) is proposed in this letter. The severe mismatch between horn aperture and free space leads to narrow impedance bandwidth when the substrate thickness is much smaller than the wavelength (typically less than λ06). Two groups of periodic offset DSPSL structure are placed in front of the horn aperture, which acts as an impedance transformer to realize smooth transition. Good impedance matching can be easily realized by modifying the constitutive parameters of the offset DSPSL structure. Measured results show that the impedance bandwidth can be improved up to 20.5% from 14 to 17.2 GHz with a low profile less than λ 0/13. Stable end-fire radiation patterns are obtained across the bandwidth.",

keywords = "Double-sided parallel-strip lines (DSPSL), horn antenna, substrate integrated waveguide (SIW), wideband",

author = "Yufan Cao and Yang Cai and Cheng Jin and Zuping Qian and Lei Zhu and Wei Zhang",

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AU - Cao, Yufan

AU - Cai, Yang

AU - Jin, Cheng

AU - Qian, Zuping

AU - Zhu, Lei

AU - Zhang, Wei

PY - 2018/9

Y1 - 2018/9

N2 - A novel substrate integrated waveguide horn antenna loaded with offset double-sided parallel-strip lines (DSPSL) is proposed in this letter. The severe mismatch between horn aperture and free space leads to narrow impedance bandwidth when the substrate thickness is much smaller than the wavelength (typically less than λ06). Two groups of periodic offset DSPSL structure are placed in front of the horn aperture, which acts as an impedance transformer to realize smooth transition. Good impedance matching can be easily realized by modifying the constitutive parameters of the offset DSPSL structure. Measured results show that the impedance bandwidth can be improved up to 20.5% from 14 to 17.2 GHz with a low profile less than λ 0/13. Stable end-fire radiation patterns are obtained across the bandwidth.

AB - A novel substrate integrated waveguide horn antenna loaded with offset double-sided parallel-strip lines (DSPSL) is proposed in this letter. The severe mismatch between horn aperture and free space leads to narrow impedance bandwidth when the substrate thickness is much smaller than the wavelength (typically less than λ06). Two groups of periodic offset DSPSL structure are placed in front of the horn aperture, which acts as an impedance transformer to realize smooth transition. Good impedance matching can be easily realized by modifying the constitutive parameters of the offset DSPSL structure. Measured results show that the impedance bandwidth can be improved up to 20.5% from 14 to 17.2 GHz with a low profile less than λ 0/13. Stable end-fire radiation patterns are obtained across the bandwidth.

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Broadband SIW Horn Antenna Loaded with Offset Double-Sided Parallel-Strip Lines

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