Ultracompact Via-Based Absorptive Frequency-Selective Surface for 5-GHz Wi-Fi With Passbands and High-Performance Stability
Journal
IEEE Transactions on Components, Packaging and Manufacturing Technology
Journal Volume
8
Journal Issue
1
Pages
41-49
Date Issued
2018
Author(s)
Abstract
A miniaturized absorptive frequency-selective surface (AFSS) allowing power transmission in other specific band is proposed in this paper. The via-based structure is adopted to make unit-cell size only 0.109λ0× 0.109λ0, where λ0 is the wavelength in free space at operating frequency. The maximum absorption rate of 99.3% locates at 5.45 GHz and half-power absorption ranges from 5.198 to 5.882 GHz, covering the whole 5-GHz Wi-Fi band. It also allows half-power transmission below 1.016 GHz. Furthermore, the absorption characteristic of the proposed AFSS is relatively stable under different backside materials, incident angles, and polarizations of incoming electromagnetic field. In addition, air vents, which are created to provide heat dissipation, make the proposed miniaturized AFSS a multifunction candidate for advanced packaging. © 2011-2012 IEEE.
Subjects
Absorptive frequency-selective surface (AFSS); mixed-signal system; radio frequency interference (RFI); wireless local area network
SDGs
Other Subjects
Absorption; Electric signal systems; Electromagnetic fields; Electromagnetic wave absorption; Electromagnetic wave polarization; Equivalent circuits; Metals; Power transmission; Radio interference; Signal systems; Substrates; Wireless local area networks (WLAN); Absorptive frequency-selective surface (AFSS); Integrated circuit modeling; Mixed-signal systems; Radio frequency interference; Wireless fidelities; Frequency selective surfaces
Type
journal article