Creating and sharing knowledge for telecommunications

A dual-band frequency selective surface using four arms star geometry associated to trapezoidal rings for WiFi applications

Neto, G. ; Silva, J. ; Silva, B. O. ; Peixeiro, C.

A dual-band frequency selective surface using four arms star geometry associated to trapezoidal rings for WiFi applications, Proc European Microwave Week/European Microwave Conf., Nuremberg, Germany, Vol. , pp. 791 - 794, October, 2017.

Digital Object Identifier: 10.23919/EuMC.2017.8230966

 

Abstract
In this paper, a dual-band frequency selective
surface, FSS, for WiFi applications (2.4 GHz and 5.8 GHz) is
designed using the four arms star geometry associated to
trapezoidal rings. The characteristics of each geometry are
discussed separately and initial project equations are proposed.
When associated, the resultant effects in the FSS frequency
response are investigated, including the polarization and how the
frequency of resonances can be adjusted. One advantage of the
proposed FSS is the possibility of adjusting almost separately the
frequency response associated to each geometry, with different
bandwidths for each resonance. The polarization dependence is a
drawback, but it can be surpassed by the use of double layer FSS,
not discussed in this paper. Numerical and measured results are
presented, verifying a very good agreement, with at least a
rejection band of -15 dB at each WiFi bands.