A rectangular slotted dielectric substrate loaded Antipodal Vivaldi SIW antenna for X-band applications

Nahid, Sana; Kumar, Avinash; Dadel, Megha

doi:10.1109/iciiecs.2017.8275882

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2023

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“…Up to now, there have been many methods that improve the bandwidth and gain of the UWB antenna for a GPR system. For example, substrate-integrated waveguide (SIW) is loaded onto a dielectric substrate [ 3 ]. SIW is similar to a slotted metal waveguide, but it has the advantage of low return loss compared to other transmission lines.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wideband and High-Gain Vivaldi Antenna with Artificial Electromagnetic Materials

Zhang

et al. 2023

Micromachines

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An ultra-wideband and high-gain Vivaldi antenna with artificial electromagnetic material, suitable for ground-penetrating radar (GPR) systems, is proposed. Directors loaded inside the antenna gradient slot direct electromagnetic waves by inducing current to improve gain. The artificial electromagnetic material, also called metamaterial, is composed of multiple “H”-shaped units arranged in a certain regular pattern, loaded at the antenna aperture. The artificial electromagnetic units affect the antenna radiation waves by changing the refractive index to improve radiation directivity. The four Vivaldi units are arranged into a horn-shaped array, and each two units are orthogonally fed to realize dual polarization. Experimental results demonstrate that the antenna has good impedance matching of S11≤−10 dB in 0.9–4 GHz, and the maximum realized gain can reach 15.2 dBi.

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Section: Introductionmentioning

confidence: 99%

Ultra-Wideband and High-Gain Vivaldi Antenna with Artificial Electromagnetic Materials

Zhang

et al. 2023

Micromachines

View full text Add to dashboard Cite

show abstract

A rectangular slotted dielectric substrate loaded Antipodal Vivaldi SIW antenna for X-band applications

Cited by 1 publication

References 3 publications

Ultra-Wideband and High-Gain Vivaldi Antenna with Artificial Electromagnetic Materials

Ultra-Wideband and High-Gain Vivaldi Antenna with Artificial Electromagnetic Materials

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