Results 81 to 90 of about 601,761 (190)

3D-Printed Reflect-Transmit-Array Antenna With Modified Transmitarray Mode for RCS Reduction

open access: yesIEEE Access
In this paper, a 3D-printed dual-band reflect-transmit-array (RTA) antenna has been presented, which operates as a reflectarray (RA) in the 28 GHz band and as a transmitarray (TA) in the 41.5 GHz band along with modified TA mode operation for radar cross-
Vimal Kumar   +4 more
doaj   +1 more source

Optimized Design Method for Multimodal Low-coupling Orbital Angular Momentum Arrays for Radar Detection Applications

open access: yesLeida xuebao
Vortex electromagnetic waves carrying Orbital Angular Momentum (OAM) can meet the requirements of modern radar detection systems for high resolution and precision.
Pengyuan QI   +6 more
doaj   +1 more source

Analysis and simulation of pyramidal horn antenna

open access: yes, 2019
This master's thesis focuses on analysis, calculation, simulation and interpretation of the pyramidal horn antenna results. The content of this thesis will enable future readers to have a detailed insight into the analysis and design of a high-frequency antenna.
openaire   +1 more source

Investigation of Carbon Fiber Reinforced Polymer Concrete Reinforcement Ageing Using Microwave Infrared Thermography Method

open access: yesApplied Sciences
This study presents the utilization of the microwave infrared thermography (MIRT) technique to identify and analyze the defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens.
Barbara Szymanik   +3 more
doaj   +1 more source

Implementation of the pyramidal-horn antenna radiation-pattern equations using Mathcad

open access: yes, 1999
In this paper, the far-field radiation-pattern equations for the pyramidal-horn antenna are derived and compared to measured data, and a Mathcad simulation is presented.
Volakis J.L.   +3 more
core  

Analysis for Radiation Characteristics of Horn Antenna for Out of Band

open access: yes, 2011
The idea of this paper roots in the electromagnetic compatibility design of the whole aircraft system, in which out of band characteristics of airborne antennas are of equal importance as their characteristics in band.
Rong Kong, Dong Lin Su, Qiu Yuan Lv
core   +1 more source

Study of a circularly polarized microstrip antenna with a pyramidal-horn ground plane

open access: yes, 2012
[[abstract]]This paper presents an experimental study of wide beamwidth of the circularly polarized (CP) radiation. The CP radiation is obtained by mounting a truncated-corner square patch antenna with a pyramidal horn ground structure.
Huang, Shih-Keng; Su, Che-Wei; Lee, Ching-Her; Liu, Yung-Tao
core  

360° beam-steering reconfigurable wideband substrate integrated waveguide horn antenna

open access: yes, 2016
A novel beam-steering reconfigurable substrate integrated waveguide (SIW) horn antenna is presented. By employing p-i-n diodes as tuning mechanisms, the states of copper posts of the SIW horn can be electronically controlled.
Ge, Lei, Luk, Kwai Man, Chen, Shichang
core   +1 more source

Fast In-Phantom Absorbed Power Density Evaluation at mmWaves Based on Infrared Measurements

open access: yesIEEE Journal of Microwaves
This article introduces a novel method for fast measurement of the absorbed power density (APD) induced by an electromagnetic field (EMF) emmitting device operating near the human body at frequencies above 6 GHz, taking into account antenna/body ...
Massinissa Ziane   +2 more
doaj   +1 more source

ePoster

open access: yes
European Journal of Neurology, Volume 33, Issue S1, June 2026.
wiley   +1 more source

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