Plasmonic nanoslit-based dual-wavelength multiplexer

Aparna, U.; Mruthyunjaya, H.S; Kumar, M. Sathish

doi:10.1007/s12596-020-00590-x

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…Polarization converters are devices that can control the polarization direction of electromagnetic waves. They are mainly used in optics to precisely modulate the polarization of light [ 1 , 2 , 3 , 4 , 5 ]; in the field of ultrasound they can be used for imaging [ 6 ], and in the microwave field, they can be used where the polarization direction of the electromagnetic wave is particularly demanding, such as in satellite communications [ 7 , 8 , 9 ], electromagnetic stealth [ 10 ], navigation [ 11 ], and radar [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Low Profile Dual-Band Polarization Conversion Metasurface with Omnidirectional Polarization

Zhang

Zhao

et al. 2023

Materials

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In this work, a dual-band transmissive polarization conversion metasurface (PCM), with omnidirectional polarization and low profile, is proposed. The periodic unit of the PCM is composed of three metal layers separated by two substrates. The upper patch layer of the metasurface is the patch-receiving antenna, while the bottom layer is the patch-transmitting antenna. Both antennas are arranged in an orthogonal way so that the cross-polarization conversion can be realized. The equivalent circuit analysis, structure design, and experimental demonstration are conducted in detail, the polarization conversion rate (PCR) is greater than 90% within two frequency bands of 4.58–4.69 GHz and 5.33–5.41 GHz, and the PCR at two center operating frequencies of 4.64 GHz and 5.37 GHz is as high as 95%, with a thickness of only 0.062λL, where λL is the free space wavelength at the lowest operating frequency. The PCM can realize a cross-polarization conversion, when the incident linearly polarized wave at an arbitrary polarization azimuth, which indicates that it has the characteristics of omnidirectional polarization.

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