Three-dimensional single-shell dielectric lens design using complex coordinates and local axis-displaced confocal quadrics

Página do item simplificado
dc.creatorAline Rocha de Assis
dc.creatorJosé Ricardo Bergmann
dc.creatorFernando José da Silva Moreira
dc.date.accessioned2025-05-27T13:22:11Z
dc.date.accessioned2025-09-08T23:07:08Z
dc.date.available2025-05-27T13:22:11Z
dc.date.issued2023
dc.identifier.doi10.1049/mia2.12365
dc.identifier.issn17518725
dc.identifier.urihttps://hdl.handle.net/1843/82507
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofIET Microwaves, Antennas & Propagation
dc.rightsAcesso Restrito
dc.subjectTelecomunicações
dc.subject.otherLentes dielétricas
dc.subject.otherSíntese e Análise de Antenas
dc.subject.otherÓptica Geométrica
dc.subject.otherIn recent years, several works have proposed the use of dielectric lenses to design antennas for microwave and millimetre wave applications. In these frequency ranges, conventional dielectric lenses can be designed to be small and low-weighted, increasing the set of lenses' advantages. These antennas are quite inexpensive, have good fabrication tolerances, wide-band capabilities, as well as very low dissipative losses. In this scenario, it is expected that proper modelling of dielectric lenses' surfaces may yield designs capable of assisting telecommunication services demanding higher data rates at increasingly higher frequencies.
dc.subject.otherTeoria Eletromagnética Aplicada
dc.subject.otherTelecomunicações
dc.titleThree-dimensional single-shell dielectric lens design using complex coordinates and local axis-displaced confocal quadrics
dc.typeArtigo de periódico
local.citation.epage557
local.citation.issue7
local.citation.spage547
local.citation.volume17
local.description.resumoThis study proposes an analytical formulation in complex coordinates to synthesise three-dimensional single-shell dielectric lens surfaces. An exact formulation based on geometrical optics is developed, and the synthesis problem is modelled as a non-linear second-order partial differential equation of the Monge–Ampère (MA) type. An alternative numerical scheme based on axis-displaced confocal quadrics is used to locally represent the surface of dielectric lens. The advantage of this approach is to analytically obtain the partial derivatives present in the MA equation. To validate the proposed methodology, numerical results are obtained by an iterative algorithm that allows the simultaneous control of the transmitted beam width and the power density amplitude in the far-field region. To illustrate the synthesis effectiveness, two examples of lens antennas are simulated and analysed.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://ietresearch.onlinelibrary.wiley.com/doi/10.1049/mia2.12365

Arquivos

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG