Results 61 to 70 of about 67,964 (307)
A Wideband Slot Antenna with Folded Parasitic Line for Multiple Band Operation [PDF]
Radioengineering, 2016 The rectangular slot antenna with rectangular stub for a wide impedance bandwidth is proposed. In addition, the interference frequency band has been rejected by placing the folded parasitic line surrounding the rectangular stub of the presented antenna ...
C. Mahatthanajatuphat +3 more
doaj
Frequency reconfigurable patch antenna for 4G LTE applications [PDF]
, 2018 A compact printed multi-band frequency reconfigurable patch antenna for 4G LTE applications is presented in this paper (50 x 60 x 1.6 mm3). The antenna consists of W-shaped and Inverted-U shaped patch lines connected in a Tree-shape on the front side of ...
Abbasi, Qammer H. +4 more
core +1 more source
Reconfigurable Radiation Pattern Antennas in mm-Waves
, 2010 Far-field radiation pattern control has strong potential in smart antennas, wireless communications and radar. Typical planned applications include multipath fading and interference mitigation, data rate and coverage enhancement, etc. For implementing these functionalities, either switch beam or reconfigurable Half-Power Beam-Width (HPBW) antennas are ...
Lafond, Olivier +3 more
openaire +4 more sources
Advanced Engineering Materials, EarlyView.This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh +6 more
wiley +1 more source
Design Investigation of a Modified HMSIW Leaky Wave Antenna
International Journal of Information and Communication Technology Research, 2014 In this paper, a new leaky wave antenna (LWA) is introduced. The proposed antenna radiates through a dielectric aperture created by half mode substrate integrated waveguide (HMSIW) technique.
Seyed Ali Razavi, Mohammad H. Neshati
doaj
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsThis paper presents results of a time-domain spherical-multipole near-to-far-field transformation together with a moment expansion applied to antenna radiation patterns.
Glaucio L. Ramos +2 more
doaj +1 more source
Broadband choke for antenna structure [PDF]
, 1969 Broadband chokes and absorbers to reduce spurious radiation patterns of antenna array caused by support ...
Bishop, O. L., Bolt, C. A., Jr.
core +1 more source
Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag [PDF]
, 2015 A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work.
Bashri, M. S. R. +2 more
core +2 more sources
Patterns of the radiation properties for Peano antennas
Scientific Reports, 2023 AbstractThis paper studies metallic microstrip antennas with air as a substrate in the UHF band, patterned after space-filling, self-avoiding, and self-similar (FASS) Peano curves. Our novel study is based on context-free grammar and genetic programming as computing tools to unravel the role of geometry on both; the Voltage Standing Wave Ratio (VSWR ...
René Pérez-Moroyoqui +2 more
openaire +3 more sources
Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution
Advanced Engineering Materials, EarlyView.Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat +5 more
wiley +1 more source