Analysis and design of a simple and compact bandstop Frequency Selective Surface at mobile WiMAX and satellite communication X-band

Design and demonstration of a 2.5D frequency‐selective surface for sub‐6 GHz 5G wireless communication

“…Eventually, the certainty of electromagnetic interference among these devices including the 5G devices increase, which may produce undesirable results. 5 In this regard, FSS can play a vital role as it has the ability to electromagnetically shield any particular frequency band using its band-stop filtering feature. 6 In consideration of the space limitation, the FSS structures implemented with smaller unit cells have the tendency to behave as an infinite array and assure sturdy frequency response at varying incident angles in comparison to the largely dimensioned unit cells.…”

“…Various devices actively work in the frequency range of 3.3–3.8 GHz, such as WiMAX among others. Eventually, the certainty of electromagnetic interference among these devices including the 5G devices increase, which may produce undesirable results 5 . In this regard, FSS can play a vital role as it has the ability to electromagnetically shield any particular frequency band using its band‐stop filtering feature 6 …”

A frequency‐selective rasorber with wideband absorption and in‐band transmission using resistive ink

“…Frequency-selective surfaces (FSSs) are periodically arranged thin structures that possess different characteristics like transmission, absorption, reflection, and so forth, depending upon the geometries and the incident electromagnetic (EM) wave characteristic. 1 As these surfaces exhibit various responses like bandpass or bandstop, they can be extensively used as spatial filters, [2][3][4] circuit analog absorbers, 5,6 and so on. In addition, multiple applications can be integrated into single structures by carefully designing the FSS geometries.…”

Dual rhombic loop‐based frequency selective surfaces for X‐band applications

“…19 These characteristics are also obtained by fractal FSSs, 20 combinations of other forms of unit cells, 21,22 and array of rotational symmetric square split ring resonators. 23,24 The band stop FSSs with linear reflection phase behave as good reflectors and thus, these have been assembled with planar antennas to enhance their gain. 2,13 In this study, two different FSSs based on array of rhombic loop pair are proposed and experimentally validated to exhibit wide stopband at X-band frequencies.…”

“…Multiple band reject FSSs are demonstrated by concentric array of square loops 18 and circular rings 19 . These characteristics are also obtained by fractal FSSs, 20 combinations of other forms of unit cells, 21,22 and array of rotational symmetric square split ring resonators 23,24 . The band stop FSSs with linear reflection phase behave as good reflectors and thus, these have been assembled with planar antennas to enhance their gain 2,13 …”