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Ultraminiaturised Polarisation Selective Surface (PSS) for dual‐band Wi‐Fi and WLAN shielding applications
Ultraminiaturised Polarisation Selective Surface (PSS) for dual‐band Wi‐Fi and WLAN shielding applications
- Source :
- IET Microwaves, Antennas & Propagation. 14:1514-1521
- Publication Year :
- 2020
- Publisher :
- Institution of Engineering and Technology (IET), 2020.
-
Abstract
- This study reports on a highly miniaturised polarisation selective surface (PSS) for dual-band Wi-Fi and WLAN applications. The proposed unit cell consists of two independently tuneable square loops. The outer loop is split with a gap of 0.2 mm to introduce polarisation selectivity and miniaturisation for lower-frequency band of 2.5 GHz. The inner square loop is inductively loaded with arms to suppress 5.45 GHz frequency band. These configurations have resulted in a unit element size of λ ∘ / 14 at 2.5 GHz, which is not presented before to the best of the authors' knowledge. A wide rejection bandwidth ( − 10 dB ) of more than 600 and 1180 MHz is obtained around 2.5 and 5.45 GHz, respectively. Furthermore, the proposed PSS exhibits an excellent polarisation selective characteristic by generating two stopbands at 2.5 and 5.45 GHz when illuminated by horizontal (TM) incident waves, whereas vertically (TE) polarised incident waves result in the generation of passbands for these two frequencies. Numerical validation through equivalent circuit modelling of the proposed PSS has also been carried out. A finite prototype containing 31 × 33 elements is fabricated and tested. The measured results demonstrated that the PSS has excellent potential for applications that employ polarisation separators and wave generators.
- Subjects :
- Materials science
business.industry
Frequency band
020208 electrical & electronic engineering
Bandwidth (signal processing)
020206 networking & telecommunications
02 engineering and technology
Selective surface
Incident wave
Electromagnetic shielding
0202 electrical engineering, electronic engineering, information engineering
Optoelectronics
Equivalent circuit
Multi-band device
Electrical and Electronic Engineering
business
Numerical validation
Subjects
Details
- ISSN :
- 17518733 and 17518725
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- IET Microwaves, Antennas & Propagation
- Accession number :
- edsair.doi...........984665aea7b5b67a9d56b19af301e469
- Full Text :
- https://doi.org/10.1049/iet-map.2020.0379