Angularly Stable Frequency Selective Surface Combined With a Wide-Scan Phased Array

five-layer frequency selective surface (FSS) composed of subwavelength elements with large harmonic rejection bandwidth is presented. The FSS design is based on an equivalent circuit model, where the interlayer interaction is only described with a single transmission line representing the fundamental Floquet wave. A prototype of the designed FSS...

Sub-wavelength frequency selective surface design for improved antenna array out-of-band rejection

Correction: Inkjet printed paper based frequency selective surfaces and skin mounted RFID tags: The interrelation between silver nanoparticle ink, paper substrate and low temperature sintering technique

Inkjet printed paper based frequency selective surfaces and skin mounted RFID tags: The interrelation between silver nanoparticle ink, paper substrate and low temperature sintering technique

Inkjet printing of functional frequency selective surfaces (FSS) and radio frequency identification (RFID) tags on commercial paper substrates using silver nanoparticle inks sintered using low temperature thermal, plasma and photonic techniques is reported. Printed and sintered FSS devices demonstrate performances which achieve wireless...

Threats and protection for electronically-steered array radars

Front-end power overload protection is a vital issue in any electro-magnetic sensor. The issues around active electronically-steered arrays are more recent and pose new threats. Different categories of threats can damage the sensitive electronics in the phased-array radar, like hostile high power electro-magnetic (HPEM) pulses or the radar’s own...

Multimode equivalent networks for the design and analysis of frequency selective surfaces

A modular technique originally proposed for waveguide junctions, the multimode equivalent network approach based on the integral equation formulation (IEMEN), is extended to the analysis of multilayer Frequency Selective Surfaces integrated with waveguide array antennas. This technique represents each layer and transition between layers in terms...

A study of the expanding functions for a mom-based solution of reduced kernel integral equations

The Multimode Equivalent Network approach based on the Integral Equation formulation (IEMEN), originally proposed for waveguide structures, has been extended in [1] to the analysis of multi-layer FSS's. This method formalizes the scattering problem in terms of a single integral equation with reduced kernel and corresponding reduced (non...