Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Joseph, Costantine"'
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 3, Pp 512-520 (2024)
This paper presents a groove gap waveguide structure designed to serve as a feeding network for dual circularly polarized antenna arrays in the millimeter wave spectrum (28-32 GHz). The proposed structure comprises four groove gap waveguide elements
Externí odkaz:
https://doaj.org/article/40f7485634854a76ab1d568cf9a1ab34
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 2, Pp 193-203 (2024)
This paper introduces a dual band-pass and dual band-stop filter that is designed along its flexible back-end circuitry to sense and monitor muscle contractions. The filter and its back-end circuit are proposed to be wearable, flexible, and stretchab
Externí odkaz:
https://doaj.org/article/898e91c9083c477a9dc7c119b584a324
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract In disaster-prone areas, damaged infrastructure requires impromptu communications leveraging lightweight and adaptive antennas. Accordingly, we introduce a bi-stable deployable quadrifilar helix antenna that passively reconfigures its radiat
Externí odkaz:
https://doaj.org/article/331eab79b54748818e28bd1087061ae9
Autor:
Rayan Al Sayed Ali, Nader Shafi, Fatima Asadallah, Rachel Njeim, Habib Al Kalamouni, Hassan Zaraket, Rouwaida Kanj, Assaad Eid, Joseph Costantine, Youssef Tawk
Publikováno v:
Advanced Sensor Research, Vol 3, Iss 4, Pp n/a-n/a (2024)
Abstract This study proposes a highly sensitive portable device that utilizes electromagnetic waves and data analytics for instantaneous Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS‐CoV‐2) detection. The device consists of a Radio Freque
Externí odkaz:
https://doaj.org/article/67792cdbd7f84ce8a1cb6d3d13b518e4
Publikováno v:
IEEE Access, Vol 11, Pp 145441-145446 (2023)
This paper presents a diplexer design that generates a pair of fundamental and harmonic frequencies. The diplexer is based on a capacitively loaded resonator that is able to reconfigure its frequency pair with respect to capacitive loading. The syste
Externí odkaz:
https://doaj.org/article/d50a278394524212ac6a8ed4bc431ab4
Autor:
Jessica Hanna, Youssef Tawk, Sami Azar, Ali H. Ramadan, Batoul Dia, Elias Shamieh, Sumaya Zoghbi, Rouwaida Kanj, Joseph Costantine, Assaad A. Eid
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract This work introduces novel body-matched, vasculature-inspired, quasi-antenna-arrays that act as electromagnetic sensors to instantaneously, continuously, and wirelessly sense glucose variations in the bloodstream. The proposed sensors are pe
Externí odkaz:
https://doaj.org/article/7a5d507cafbb43bc8eca25a06282fd50
Publikováno v:
Advanced Science, Vol 10, Iss 6, Pp n/a-n/a (2023)
Abstract Response to environmental thermomechanical inputs in applications that range from wearable electronics to aerospace structures necessitates agile communication systems driven by reconfigurable electromagnetic structures. Antennas in these sy
Externí odkaz:
https://doaj.org/article/9d19a5f0293642cea44e43dad532089b
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 759-766 (2021)
This paper discusses the design of a high gain right-hand circularly polarized millimeter-wave frequency reconfigurable antenna array. The 16-element antenna array is designed to reconfigure its operating frequency over both K- and Ka-bands. More spe
Externí odkaz:
https://doaj.org/article/1c78927b4c2c4259940d80439fd2cc03
Publikováno v:
IEEE Access, Vol 9, Pp 108579-108585 (2021)
This paper describes the design of a planar antenna array system with pattern reconfiguration in the azimuthal plane. The antenna array system is designed based on four antenna units where each unit is composed of two printed Yagi-Uda elements that r
Externí odkaz:
https://doaj.org/article/9c9f4792fb6644adac5d907d48dd3902
Publikováno v:
IEEE Transactions on Antennas and Propagation. 71:3894-3904