Listar por autor "Hernández-Escobar, Alberto"
Mostrando ítems 1-7 de 7
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A wideband equivalent circuit for stripline-fed cavity-backed slot radiating elements
Hernández-Escobar, Alberto; Abdo-Sánchez, María Elena
; Camacho-Peñalosa, Carlos (IEEE, 2019-11)
An equivalent circuit for stripline-fed cavity-backed slot radiating elements is proposed. The proposed equivalent circuit consist of a transmission line model for the slot mode, a slot end-effect which includes the ... -
An equivalent-circuit topology for lossy non-symmetric reciprocal two-ports
Hernández-Escobar, Alberto; Abdo-Sánchez, María Elena; Mateos-Ruiz, Pablo; Esteban, Jaime; Martín-Guerrero, Teresa María; Camacho-Peñalosa, Carlos[et al.] (IEEE Journal of Microwaves, 2021-07)
An equivalent-circuit topology for two-port lossy non-symmetric reciprocal networks is proposed. The circuit topology is based on the eigenstate decomposition. The proposed circuit consists of two immittances and two ... -
Analytical Eigenstate Equivalent Circuit for Narrow-Slot Bi-Periodic Scatterers
Hernández-Escobar, Alberto; Mesa, Francisco; Esteban, Jaime; Abdo-Sánchez, María Elena; Martín-Guerrero, Teresa María; Camacho-Peñalosa, Carlos[et al.] (2023-07)
The analytical values of the parameters of an eigenstate-based equivalent circuit are obtained for the analysis and modeling of a simple bi-periodic scatterer. The scatterer geometry consists of a rotated, very narrow slot. ... -
Circuito equivalente analítico basado en vectores y valores propios para superficies periódicas con ranuras estrechas.
Hernández-Escobar, Alberto; Mesa, Francisco; Esteban, Jaime; Abdo-Sánchez, María Elena; Martín-Guerrero, Teresa María; Camacho-Peñalosa, Carlos[et al.] (2023)
In this work, the values of the parameters of the eigenstate lattice network are obtained by using only analytical means. The procedure is applied to a simple structure, consisting of a bi-periodic surface made of a slotted ... -
Design and fabrication of a Fabry-Pérot cavity antenna for the Ku-band
Mateos-Ruiz, Pablo; Hernández-Escobar, Alberto; Abdo-Sánchez, María Elena; Camacho-Peñalosa, Carlos (2020-09-18)
A design of a directive antenna based on a Fabry-Pérot cavity is described, using a single metallic partially reflecting surface (PRS) in front of a coaxial-fed patch antenna. The main features of this type of antennas are ... -
Measuring odd- and even-mode propagation constants of coupled-lines by means of the lattice network
Hernández-Escobar, Alberto; Abdo-Sánchez, María Elena; Esteban Marzo, Jaime; Martín-Guerrero, Teresa María; Camacho-Peñalosa, Carlos (2019-10-30)
A classic method for measuring the propagation constant of transmission lines is the one proposed by Bianco and Parodi more than four decades ago [1]. It is based on the invariance of the cross ratio of four complex numbers ... -
Time-Domain Characterization of Nematic Liquid Crystals Using Additive Manufacturing Microstrip Lines.
Mateos-Ruiz, Pablo; Pérez-Escribano, Mario; Hernández-Escobar, Alberto; Abdo-Sánchez, María Elena; Márquez-Segura, Enrique; Martín-Guerrero, Teresa María; Camacho-Peñalosa, Carlos[et al.] (IEEE, 2024)
This paper presents a method for effectively characterizing the dielectric permittivity of nematic liquid crystals across a broad frequency range. These materials show significant potential for reconfigurable devices ...