Results 81 to 90 of about 76,690 (306)

A COMPOSITION PATCH ANTENNA

open access: yesRadio physics and radio astronomy
Subject and Purpose. The paper presents results of numerical simulation of a composition patch antenna with a complex form factor. The design combines two structures, specifically, a disc and an annular resonator. The annular resonator is fed via a coplanar structure that involves cut-ins of different geometries.
S. A. Pogarsky   +2 more
openaire   +2 more sources

Individual Patch Antenna and Antenna Patch Array for Wi-Fi Communication

open access: yesProgramación matemática y software, 2019
La comunicación inalámbrica, mejor conocida como Wi-Fi (Wireless Fidelity), adquiere interés ya que no requiere del uso de cables, los cuales son engorrosos y limitan el espacio libre. Este tipo de comunicación es ampliamente utilizado en equipos electrónicos, principalmente en el hogar y la industria.
José Gerardo Vera Dimas   +5 more
openaire   +2 more sources

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

open access: yesFEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero   +5 more
wiley   +1 more source

Wide-band planar inverted-F antenna for cognitive radio [PDF]

open access: yes, 2009
A wide-band Planar Inverted-F Antenna (PIFA) is presented. The proposed antenna is simply structured consist of main patch supported by shorting wall and shorting pin, fed by 50 ohm microstrip transmission line. The antenna achieves an enhanced impedance
AbuTarboush, HF   +3 more
core  

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

open access: yesFEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour   +2 more
wiley   +1 more source

COMPARATIVE ANALYSES FOR RCS OF 10 GHz PATCH ANTENNA USING SHORTED STUBS METAMATERIAL ABSORBER [PDF]

open access: yesJournal of Engineering Science and Technology, 2018
In this research work, a novel approach for the in-band reduction of Radar Cross Section (RCS) of rectangular patch antenna has been proposed. An ultrathin Metamaterial Absorber (MMA) consists of shorted stubs and rectangular bars has been loaded around ...
DHAWAN SINGH, VIRANJAY M. SRIVASTAVA
doaj  

Design, Simulation, and Optimization of an Irregularly Shaped Microstrip Patch Antenna for Air-to-Ground Communications

open access: yesInternational Journal of Antennas and Propagation, 2017
In this study an irregularly shaped microstrip patch antenna was designed, simulated, and optimized for air-to-ground communication (ATG) applications. The process started with the design of a rectangular patch antenna with the traditional transmission ...
L. A. R. Ramirez, J. C. A. Santos
doaj   +1 more source

A Zero Index Based Meta-Lens Loaded Wideband Directive Antenna Combined With Reactive Impedance Surface

open access: yesIEEE Access, 2018
In this paper, an aperture efficient wideband high-gain patch antenna is designed using a novel multilayer-based metamaterial structure combined with a reactive impedance surface (RIS)-backed patch antenna.
Basudev Majumder   +2 more
doaj   +1 more source

Optimization of aperture coupled microstrip patch antennas [PDF]

open access: yes, 2010
Aperture coupled microstrip patch antennas (ACMPA) are special class of microstrip antennas with high gain and wide impedance bandwidth. These antennas differ from other microstrip antennas with their feeding structure of the radiating patch element ...
Dogan, Mustafa   +5 more
core  

Reconfigurable dual band microstrip patch antenna for software defined radio applications [PDF]

open access: yes, 2010
In this paper, a reconfigurable microstrip patch antenna with RF pin diode switches is implemented for dual band of 2.4 GHz and 5.6 GHz Software Defined Radio (SDR) applications.
Croq   +7 more
core   +3 more sources

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