Premium
Polarization insensitive penta‐bandstop frequency selective surface for closely placed bands
Author(s) -
Farooq Umer,
Iftikhar Adnan,
Shafique Muhammad Farhan,
Mughal Muhammad Junaid,
Fida Adnan,
Khalid Sohail
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32571
Subject(s) - gsm , electromagnetic shielding , radio spectrum , frequency band , polarization (electrochemistry) , varicap , tunable metamaterials , radio frequency , selective surface , materials science , electronic engineering , acoustics , optoelectronics , electrical engineering , bandwidth (computing) , physics , computer science , engineering , telecommunications , metamaterial , capacitance , chemistry , electrode , quantum mechanics
This article reports on a single layer penta‐bandstop frequency selective surface (FSS) for multiband shielding applications. The proposed unit cell incorporates five independent resonant elements that are realized on a single‐sided FR4 substrate to suppress GSM ‐ 0.9 GHz, GPS ‐ 1.5 GHz, GSM ‐ 1.8 GHz, Wi‐Max ‐ 3.5 GHz, and Wireless Local Area Network (WLAN) ‐ 5.7 GHz frequency bands. The proposed single layer unit cell has compact lattice periodicity of order 0.11 λ o × 0.11 λ o . The design is not only polarization‐insensitive, but it also offers high angular stability up to 45 ° . A detailed parametric analysis is conducted to establish a relationship between geometrical parameters and FSS spectral response. Additionally, an equivalent lumped circuit model is also derived to further elaborate on the underlying resonance mechanism. A prototype is fabricated and tested to validate the performance of the proposed FSS. The measured results are in good agreement with simulated ones. The proposed FSS has the uniqueness of suppressing 0.9 GHz GSM band that has never been reported in a pentaband design. The proposed FSS is a potential candidate for radio frequency (RF) shielding, electromagnetic wave suppression, and data security applications in secure installations.