Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Angel Mediavilla"'
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 16, Iss 2, Pp 494-513
Abstract The objective of the present study is to evaluate the Specific Absorption Rate (SAR) within the human head model exposed to the radiation of planar monopole antenna with T-shaped coupling feed and an inductive shorting strip. The presented d
Externí odkaz:
https://doaj.org/article/5a0a45bc714d45e2bdf48dddaccccd40
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:1327-1334
Monopulse tracking systems require a calibration procedure, which is typically performed using a calibration tower or a known satellite, leading to high costs, antenna downtime, and potential inaccuracies. This work proposes a simple circular wavegui
Autor:
Angel Mediavilla, Juan Luis Cano
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:179-188
This article introduces an easy and accurate technique for the full characterization of septum polarizers (SPs) in back-to-back configuration through standard amplitude/power measurements at the rectangular waveguide ports. The proposed calibration a
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 68:980-986
This article demonstrates the feasibility of a novel waveguide dual-mode two-way power divider that is based on an evolved junction having a dedicated T-shaped central matching element (scatterer). This scatterer, with matching sections facing all th
Publikováno v:
Progress In Electromagnetics Research M, 2020, 91, 155-164
UCrea Repositorio Abierto de la Universidad de Cantabria
Universidad de Cantabria (UC)
UCrea Repositorio Abierto de la Universidad de Cantabria
Universidad de Cantabria (UC)
In this paper, a new measurement method is proposed to estimate the complex permittivity for each layer in a multi-layer dielectric material using a Ku-band rectangular waveguide WR62. The Sij-parameters at the reference planes in the rectangular wav
Publikováno v:
21st Mediterranean Microwave Symposium (MMS), Pizzo Calabro, Italy, 2022, 506-508
Autotrack systems for space applications are typically based on monopulse. These systems require a specific test before being operative, typically through calibration towers, leading to expensive operating costs and antenna downtime. This work aims t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::474ff6781a63367a668ab6695ef8ed5c
https://hdl.handle.net/10902/28384
https://hdl.handle.net/10902/28384
Publikováno v:
Microwave Polarizers, Power Dividers, Phase Shifters, Circulators, and Switches. :127-136
The two‐port on/off gyromagnetic switch described in this chapter is a tee junction consisting of an E‐plane Faraday rotation section at the junction of two H‐plane rectangular waveguides. The two‐port switch supports, in keeping with all mic
Publikováno v:
2020 23rd International Microwave and Radar Conference (MIKON).
The use of the calibration tower to test a monopulse tracking system is expensive and requires the antenna downtime. Alternative ways to test in-lab the tracking system are highly-desirable. This work proposes a simple yet effective structure achievi
Publikováno v:
SITA
An Ortho-mode transducer (OMT) using Boifot orthomode junction is presented for obtaining the maximum wave quality in antenna feeds with very wide performance. The proposed junction is based on the Boifot configurations, having two symmetry planes fo
Publikováno v:
2020 IEEE/MTT-S International Microwave Symposium (IMS).
The calibration of a monopulse tracking system is typically performed using a calibration tower or a known satellite. This work proposes a simple yet effective technique to excite in a controlled way all the modes generated by the antenna and used to