Results 201 to 210 of about 68,328 (338)

Reconfigurable filter antennas for pulse adaptation in UWB cognitive radio systems

open access: green, 2012
Mohammed Al‐Husseini   +5 more
openalex   +1 more source

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

open access: yesAdvanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid   +13 more
wiley   +1 more source

Fast Filter‐Antenna Design Method Accelerated With Physical‐Inspired AI‐Driven Forward Solver [PDF]

open access: gold
Yan Liu   +7 more
openalex   +1 more source

Integrated Open Loop Resonator Filter Designed with Notch Patch Antenna for Microwave Applications [PDF]

open access: diamond, 2017
Dayang Azra Awang Mat   +8 more
openalex   +1 more source

The Realization of Multidirectional, Free‐Standing 3D Plasmonic Nanostructures via 3D Nanoprinting: A Case Study of Fractal Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker   +6 more
wiley   +1 more source

A coplanar vivaldi antenna with integrated filter for Ka-band

open access: green, 2016
Kansheng Yang   +4 more
openalex   +2 more sources

Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter [PDF]

open access: gold, 2018
Tao Dong   +4 more
openalex   +1 more source

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