A compact, stable, and angular independent dual‐band frequency‐selective surface for WiFi applications. Issue 10 (26th September 2018)

• Record Type: Journal Article
• Authors: Ali, Haider; Shafique, Muhammad Farhan; Riaz, Laeeq; Khan, Mahmood Ashraf
• Is Part Of: Microwave and optical technology letters. Volume 60:Issue 10(2018:Oct.)
• Page Start: 2451
• Page End: 2456
• Publication Date: 2018-09-26
• Subjects: angular stability -- dual‐band -- frequency selective surfaces -- polarization independence -- spatial filter; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.31378
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: This research work reports on a compact dual‐band bandstop frequency‐selective surface design that is capable of suppressing signals in both 2.4 and 5 GHz bands. The structure is composed of closed loop topology with the unit element size of 0.084 λ0 × 0.084 λ0 . In addition to compactness, the proposed structure is independent of polarization defects and angular variations up to 45°. It suppresses signals at least by 15 dB in all polarizations and angle of incidences. The parametric optimization of unit cell allows accurate controlling of desired bands and bandwidth. A prototype of the proposed design is fabricated and measured and good agreement between measured and simulated results is demonstrated.