Results 21 to 30 of about 601,761 (190)

New method for optimum design of pyramidal horn antennas [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2011
This article introduces a procedure for determining the optimum design of pyramidal horn antennas. The efficiencies and phase errors in the optimum design are variables and depend on the design requirements. New equations are proposed for the optimum design, which can be solved numerically or analytically.
Pereira, Leandro de Paula Santos   +1 more
openaire   +4 more sources

Fundamental issues in antenna design for microwave medical imaging applications [PDF]

open access: yes, 2010
This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Fernando, Michael   +7 more
core   +1 more source

Worksheet 09 Horn [PDF]

open access: yes, 2022
This worksheet designs a pyramidal horn antenna fed by a waveport.https://digitalcommons.usm.maine.edu/oer_maxworth_adwafss/1008/thumbnail ...
Maxworth, Ashanthi, PhD
core   +1 more source

Multiobjective Fitness Functions With Nonlinear Switching for Antenna Optimizations

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
In a multi-objective optimization process, several goals are traditionally combined into a single fitness function. In such cases, the choice of the objective function is critical, as it should accurately represent the desired optimization goals.
Md Rayhan Khan   +3 more
doaj   +1 more source

A novel planar antenna array for a ground-based synthetic aperture radar [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2019
A MIMO GB-SAR system called MELISSA was put in place to monitor landslides in Italy and the sinking of the Costa Concordia cruise liner in France. It comprises 12 pyramidal horn antennas placed in a linear geometry for transmission, and these ...
Vincent Shweta   +4 more
doaj   +1 more source

X-Band Pyramidal Horn Antenna Directivity Optimization with Symbiotic Organism Search Algorithm

open access: yes, 2023
In this study, optimum values of maximum directivity antenna parameters in a pyramidal horn antenna are determined using the symbiotic organisms search (SOS) algorithm which is an effective metaheuristic optimization method.
DANAYİYEN, YAHYA   +3 more
core   +1 more source

Performance Verification on UWB Antennas for Breast Cancer Detection

open access: yesMATEC Web of Conferences, 2017
Breast cancer is a common disease among women and death figure is continuing to increase. Early breast cancer detection is very important. Ultra wide-band (UWB) is the promising candidate for short communication applications.
Vijayasarveswari V.   +6 more
doaj   +1 more source

Determination of the orbital angular momentum state of a radio wave beam based on quantitative characteristics of a radio communication system

open access: yesКомпьютерная оптика, 2022
Nowadays, due to the lack of available radio frequency spectrum, there is a need for the development of technologies that would make it possible to use this spectrum more efficiently.
E.G. Anufriyev
doaj   +1 more source

A Ka-Band Horn Antenna Excited With Parasitic Dielectric Resonator Antenna [PDF]

open access: yes, 2010
A pyramidal horn antenna excited with parasitic dielectric resonator (DR) antenna for use at Ka-band frequencies is ...
Othman, M A   +3 more
core   +1 more source

Parametric Study of 3D Additive Printing Parameters Using Conductive Filaments on Microwave Topologies

open access: yesIEEE Access, 2019
This paper presents a parametric study of classical additive 3D-printing settings for use on conductive filaments in applications for high-frequency topologies.
Francisco Pizarro   +5 more
doaj   +1 more source

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