Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Carlos E. Saavedra"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract An investigation of the deactivation of pathogens using electromagnetic waves in the microwave region of the spectrum is achieved using custom-built waveguide structures. The waveguides feature sub-wavelength gratings to allow the integratio
Externí odkaz:
https://doaj.org/article/de35124918d74d30b60daa5d88503348
Publikováno v:
IEEE Access, Vol 11, Pp 111169-111177 (2023)
This article presents a 2-D inclinometer consisting of two individual sensors oriented orthogonally to one another such that each sensor measures the tilt angle along its respective axis. The sensors are constructed using a combination of a half-wave
Externí odkaz:
https://doaj.org/article/f13adecb1248429abf10f549b9f4315b
Autor:
Hayden A. Banting, Carlos E. Saavedra
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 581-587 (2023)
Artificial magnetic conductor metasurface antennas are investigated using a robust, surrogate-assisted, differential evolution optimization technique. Using a uniform metasurface array configuration as a starting point, multiple array configurations
Externí odkaz:
https://doaj.org/article/5d40287201504ffb86bd3b7337ca7d16
Autor:
Ian Goode, Carlos E. Saavedra
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 383-391 (2023)
A dually symmetric orthomode transducer (OMT) and horn antenna are presented for both single port linearly polarized operation and dual port circular polarization use. The feed uses two waveguide splitters and a feed bend to feed a four-port horn ant
Externí odkaz:
https://doaj.org/article/b35d7c05a6304184a52f7c119d230913
Publikováno v:
IEEE Access, Vol 11, Pp 28699-28705 (2023)
In this article, a new inclinometer concept based on an angular half-wavelength microstrip resonator is presented. The inclinometer has a wide dynamic range of 84° (B142°) which can be extended to 180° through a simple modification. The inclinomet
Externí odkaz:
https://doaj.org/article/b4f8e86189c3453084a4f016bdbc957c
Autor:
Shabnam Ahmadi Andevari, Jose-Luis Olvera-Cervantes, Hector-Noel Morales-Lovera, Carlos E. Saavedra
Publikováno v:
IEEE Access, Vol 11, Pp 7358-7368 (2023)
In this paper, a new dual-band sensor to measure uniaxial anisotropy at two frequency bands is proposed. This sensor is composed of two dual-mode resonators separated by a T-shaped structure implemented in microstrip technology. The configuration of
Externí odkaz:
https://doaj.org/article/c28ab6bef14d488184c501c299c4ec6b
Autor:
Hector-Noel Morales-Lovera, Jose-Luis Olvera-Cervantes, Aldo-Eleazar Perez-Ramos, Alonso Corona-Chavez, Carlos E. Saavedra
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract In this work, a sensor in microstrip technology and a methodology for measuring the real part and the imaginary part of the complex uniaxial permittivity of solid anisotropic samples are presented. The sensor is based on a pair of parallel l
Externí odkaz:
https://doaj.org/article/f258cef4079349e2b405925b2caca4af
Autor:
Eduardo Carrasco, Juan Gomez-Cruz, Mario Serrano-Berrueco, Carlos E. Saavedra, Carlos Escobedo
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 425-434 (2022)
Using an alloy of non-toxic liquid metal (Galinstan) is proposed to implement multi-reconfiguration in reflectarray elements. Reflectarray antennas are an interesting technology for dynamically controlling, simultaneously or individually, different p
Externí odkaz:
https://doaj.org/article/a34d2fb380514bbfb2c381650c4b0b93
Autor:
Ian Goode, Carlos E. Saavedra
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 549-556 (2022)
A fast and convenient method to 3D print and metalize circular waveguide components is demonstrated using polylactic acid (PLA) and aluminum adhesive backed tape. A gradient index (GRIN) lens, an externally metalized thin-walled conical horn, and a W
Externí odkaz:
https://doaj.org/article/c20295c6593a44589abdd10814c86aaa
Autor:
Aditya Singh, Carlos E. Saavedra
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 362-369 (2021)
This paper presents a fluidically loaded microstrip patch antenna on a multi-layered substrate with frequency and polarization reconfigurability in the 2400 MHz band. A square patch loaded at all the corners with short circuited λg/4 long stubs is u
Externí odkaz:
https://doaj.org/article/d3546fa0cf2a4191b008e500ee9dffb1