Angular selective light transmission characteristics of a grating optical filter ** by Rustam Sabirovich Zakirullin

“…The relative position of two gratings provides angular selectivity of the light transmission. A graphic-analytical method is developed to determine the angular characteristic of the filter light transmission in the form of the dependence of the light transmission coefficient on the beams incidence angle. …”
Get full text

An Ultrathin Wideband Angularly Stable Frequency Selective Surface Bandpass Filter for S-C Band Coverage by Francesca Pascarella, Danilo Brizi, Agostino Monorchio

Get full text

Double Sided Band-pass Frequency Selective Surface Based on Matryoshka Geometry by Marina de O. Alencar, Alfredo G. Neto, Marcos T. de Melo, Amanda G. Barboza

“…The resonant frequency remains practically constant for different incidence angles, from 0º to 60º, confirming the angular stability.…”
Get full text

A dual layer wideband angular stable frequency selective surface for linear to circular and circular to linear polarization conversion for 5G applications by Akash Paramanik, Krishnamurthy Chitti Venkata, Venkatachalam Subramanian

“…Abstract This work proposes novel transmission type frequency selective surface (FSS) for converting linear to circular (LP to CP) and circular to linear (CP to LP) polarizations. …”
Get full text

Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding by Muhammad Idrees, Yejun He, Youquan Wen, Abdul Majeed

“…In this article, a miniaturized frequency-selective surface (FSS)-based electromagnetic shield is investigated for EMI mitigation in the X-band. …”
Get full text

Dual-layer sub-6GHz 5G communication FSS with triple band-stop characteristics by Sweta Panchal, M. Naresh Kumar, Shreenidhi H S, Prabhat Kumar Sahu, Muhammad Irsyad Abdullah, Jyoti Malik, D V S Ravi Varma, Udaybir Singh, A Bhowmik, A. Johnson Santhosh

“…This article presents a simple and compact dual metallic layer triple band-stop 2D frequency selective surface (FSS). The design consists of four 90° rotational symmetric rectangular and triangular spiral inductive arms implemented on the top and bottom metallic layer of flame retardant-4 (FR4) dielectric substrate, respectively. …”
Get full text

Diffractive Optical Elements with a Large Angle of Operation Recorded in Acrylamide Based Photopolymer on Flexible Substrates by Hoda Akbari, Izabela Naydenova, Lina Persechini, Sean M. Garner, Pat Cimo, Suzanne Martin

“…This paper reports new results on the angular selectivity of stacked diffractive lenses. …”
Get full text

Multi-band frequency selective metasurface based filter for WLAN and X-band EMI shielding applications by Haider Ali, Bilal Tariq Malik, Laeeq Riaz, Muhammad Farhan Shafique, Slawomir Koziel

“…It is polarization-independent and has a stable angular response for up to 45o oblique angle of incidence. …”
Get full text

In-depth insight into structure-reactivity/regioselectivity relationship of Lewis acid catalyzed cascade 4πe-cyclization/dicycloexpansion reaction by Ka Lu, Pan-Pan Zhou, Yong-Qiang Tu, Fu-Min Zhang, Xiao-Ming Zhang, Kai Li, Kun Fang, Yun-Peng Wang, Zi-Hao Li, Jia-Qi Li

“…Abstract The Lewis acid-catalyzed tittle reaction of 1,3-dicycloalkenlidine ketones is recognized as so far the shortest and most effective 1-step method for construction of angular tricyclic scaffolds, which are extensively found in bioactive terpenoids. …”
Get full text