Results 81 to 90 of about 12,656 (230)

Design and Fabrication of Capacitive Mems Actuator Array on Spoof‐Surface‐Plasmon‐Polariton Waveguide for Active Microwave Modulation

open access: yesAdvanced Photonics Research, Volume 7, Issue 1, January 2026.
a) Schematic of the SSPP waveguide integrated with SRR metamaterial and MEMS actuator arrays with electric field confinement in the gap below the microbridge. b) Cross‐section of the MEMS actuator consists of a buried lead line and a microbridge at different deflection positions. c) The notch band in the microwave transmission characteristic shifts due
Van Minh Nguyen, Yoshiaki Kanamori
wiley   +1 more source

Design Aspects of a Broadband Beam-Reconfigurable Leaky-Wave Antenna [PDF]

open access: yes, 2016
Design aspects of a novel beam-reconfigurable pla-nar series-fed array are addressed to achieve beam steering with frequency tunability over a relatively broad bandwidth.
Abdo-Sánchez, Elena   +5 more
core   +1 more source

Environmental and Ecological Monitoring with Biodegradable Technologies

open access: yesAdvanced Science, Volume 13, Issue 4, 19 January 2026.
This review examines the development and application of wireless biodegradable sensors for environmental monitoring. It explores (bio)degradable materials, their degradation mechanisms in various environments, and non‐toxic fabrication techniques. Additionally, it addresses scalable production and sustainable powering solutions, emphasizing the high ...
Mohammad Javad Bathaei   +7 more
wiley   +1 more source

DEFECTED CONCRETE POST DETECTION THROUGH ANTENNA ARRAY COUPLING EFFECT [PDF]

open access: yesJournal of Engineering Science and Technology, 2017
In this paper, a proposed defected concrete post detection system is introduced. The proposed system consists of two compact microstrip broad side antenna arrays resonating at 1 GHz with dimensions of 45 cm by 13.2 cm for each antenna array and a weight ...
TAMER G. ABOUELNAGA, KAMEL S. SULTAN
doaj  

TWO-LAYER MICROSTRIP ANTENNA ARRAYS OF RECTANGULAR RADIATORS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2018
Purpose: The purpose of this paper is to propagate the methodology earlier developed by the authors for calculating microstrip antennas for the case of a two-layer antenna array of rectangular radiators, to study its electrodynamics characteristics with ...
D. G. Seleznyov, I. I. Reznik
doaj   +1 more source

Substrate Optimization for Integrated Circuit Antennas [PDF]

open access: yes, 1982
The reciprocity theorem and integral equation techniques are employed to determine the properties of integrated-circuit antennas. The effect of surface waves is considered for dipole and slot elements on substrates.
Alexopoulos, Nicolaos G.   +2 more
core   +2 more sources

Programmable Chiral Radiation via Spin‐Decoupled Metasurface with Integrated Compound Phases

open access: yesAdvanced Science, Volume 13, Issue 1, 5 January 2026.
A programmable spin‐decoupled metasurface integrating propagation and geometric phases enables high‐purity chiral radiation with reconfigurable emission direction. Spin‐selective radiators combined with a compound phase decoupling strategy suppress undesired components, while embedded PIN diodes allow real‐time directional control.
Lu Song   +8 more
wiley   +1 more source

Pneumatically‐Actuated Liquid Metal‐Based Frequency Reconfigurable Antenna

open access: yesAdvanced Science, Volume 13, Issue 5, 27 January 2026.
A look at a flexible, frequency‐tuning antenna A Soft Solution: Introducing a new antenna design made with liquid metal composites. A Full Package: Combining flexible antennas with pneumatic actuators. End‐to‐End Control: Automatic reconfiguration according to signal strength.
Yiwen Song   +6 more
wiley   +1 more source

Design and Implementation of Multiband Microstrip Patch Antenna for Wireless Applications

open access: yesAdvanced Electromagnetics, 2018
Multiband phased array antennas are required for today’s multi-function communication applications. Generally Microstrip antenna arrays like Kotch array, Sierpinski array are used, but in some circuits where space is limited, arrays are not used ...
L. Prasad   +3 more
doaj   +1 more source

Modelling a three-element printed dipole antenna array using the FDTD technique [PDF]

open access: yes, 1997
This paper shows that finite-difference time-domain (FDTD) analysis incorporating a graded grid may be used to accurately model a three-element triangular array of printed dipoles.
Ball, GJ   +5 more
core   +2 more sources

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