Results 11 to 20 of about 34,611 (261)

A meta-substrate to enhance the bandwidth of metamaterials [PDF]

open access: yesScientific Reports, 2014
We propose the concept of a meta-substrate to broaden the bandwidth of left-handed metamaterials. The meta-substrate, which behaves like an inhomogeneous magnetic substrate, is composed of another kind of magnetic metamaterials like metallic closed rings. When conventional metamaterial rings are printed on this kind of meta-substrate in a proper way,
Chen, Hongsheng   +6 more
openaire   +4 more sources

Bandwidth Enhancement on Half-Mode Substrate Integrated Waveguide Antenna Using Cavity-Backed Triangular Slot

open access: yesInternational Journal of Antennas and Propagation, 2020
This paper proposes bandwidth enhancement of a cavity-backed slot antenna using a triangular slot on a half-mode substrate integrated waveguide structure antenna.
Dian Widi Astuti   +3 more
doaj   +1 more source

Negative inductance circuits for metamaterial bandwidth enhancement

open access: yesEPJ Applied Metamaterials, 2017
Passive metamaterials have yet to be translated into applications on a large scale due in large part to their limited bandwidth. To overcome this limitation many authors have suggested coupling metamaterials to non-Foster circuits.
Avignon-Meseldzija Emilie   +3 more
doaj   +1 more source

Increasing the Bandwidth of Wideband Antennas Using the Frequency Pulling Technique

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
Frequency pulling technique (FPT) is a recently developed method for increasing the bandwidth (BW) of microstrip antennas. It is based on the insertion loss methodology used for the design of bandpass filters.
Anastasios G. Koutinos   +2 more
doaj   +1 more source

The 3D-Printed Non-Radiating Edge Gap-Coupled Curved Patch Antenna

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
The use of parasitic resonant patches is a widespread technique to improve the bandwidth of microstrip patch antennas. Exploiting the free form-factor allowed by 3D-printing manufacturing technology, we present here a novel curved patch antenna layout ...
Giacomo Muntoni   +2 more
doaj   +1 more source

Bandwidth enhancement of aperture-coupled reflectarrays

open access: yesElectronics Letters, 2006
An aperture-coupled reflectarray element with a reduced inter-element spacing is proposed. Bandwidth improvements are demonstrated by a smooth and similar behaviour of the phase design curves when properly decreasing the unit cell size. Experimental validations are reported for the measured radiation patterns of two reflectarray propotypes with ...
COSTANZO, Sandra   +2 more
openaire   +2 more sources

Accelerating photonic computing by bandwidth enhancement of a time-delay reservoir

open access: yesNanophotonics, 2020
Semiconductor lasers (SLs) that are subject to delayed optical feedback and external optical injection have been demonstrated to perform information processing using the photonic reservoir computing paradigm.
Estébanez Irene   +3 more
doaj   +1 more source

Bandwidth Enhancement Technique for Broadside Tri-Modal Patch Antenna

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
A technique for enhancing the bandwidth of a broadside tri-modal patch antenna is described. The key idea of the technique is to incorporate a dual-resonance structure into the broadside tri-modal patch geometry.
Chi-Yuk Chiu, Buon Kiong Lau, Ross Murch
doaj   +1 more source

Combination of FSO and RF channels by using Ethernet link aggregation

open access: yesEngineering Reports, 2023
Hybrid free‐space optical and radio frequency (FSO/RF) systems have attracted much attention for more than a decade because of their enhanced reliability and capacity as comparison to single FSO or RF systems.
Biao Chen
doaj   +1 more source

Semi-Resistive Approach for Tightly Coupled Dipole Array Bandwidth Enhancement

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
A new approach to enhance the bandwidth of Tightly Coupled Dipole Arrays (TCDA) is presented. The new design achieves the integration of a semi-resistive Frequency Selective Surface network (FSS) composed of a non-resistive low-pass FSS and two resistive
Maxence Carvalho   +3 more
doaj   +1 more source

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