Design and Modeling of a Compact Partially Transmissible Resistor-Free Absorptive Frequency Selective Surface for Wi-Fi Applications
Journal
IEEE Transactions on Antennas and Propagation
Journal Volume
67
Journal Issue
2
Pages
1306-1311
Date Issued
2019
Author(s)
Abstract
A compact partially transmissible absorptive frequency selective surface (AFSS) which requires neither surface mount device resistors nor resistive ink is proposed in this communication. The resistor-free AFSS utilizes the lossy characteristic of FR-4 substrate material to achieve the absorption property. The method to efficiently model the AFSS based on physical phenomena has been thoroughly discussed, by which the effect of substrate loss can be predicted accurately. An equivalent circuit model is also presented, and its predicted result agrees well with the full-wave simulation. Furthermore, the fabrication and measurement are also conducted to demonstrate the feasibility of resistor-free AFSS. The highest absorption rate of the AFSS is designed around 2.46 GHz, while at least half-power transmission is guaranteed below 1 GHz. These electromagnetic functions as well as the low fabrication cost and complexity make the resistor-free AFSS a promising candidate for advanced packaging and shielding of mixed signal system. © 1963-2012 IEEE.
Subjects
Absorptive frequency selective surface (AFSS); mixed-signal system; radio frequency interference (RFI); wireless local area network
SDGs
Other Subjects
Absorption; Chip scale packages; Circuit simulation; Electric signal systems; Electromagnetic shielding; Electromagnetic wave absorption; Electromagnetic wave polarization; Equivalent circuits; Frequency selective surfaces; Radio interference; Resistors; Wireless local area networks (WLAN); Absorptive frequency selective surface (AFSS); Integrated circuit modeling; Mixed-signal systems; Radio frequency interference; Transmitting antenna; Wireless fidelities; Substrates
Type
journal article