Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Jean-Jacques Laurin"'
Autor:
Omar M. Khan, Jean-Jacques Laurin
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 6, Pp 1592-1597 (2024)
Concept of ringed stacked patch antenna with low side lobe level and enhanced bandwidth is introduced for radio altimeter avionics applications. One dimensional electromagnetic band gap is designed using metallic vias with circular rings along the ra
Externí odkaz:
https://doaj.org/article/a68a9c56d5664b6a947b2344387fe230
Autor:
Reza Shamsaee Malfajani, Reza Damansabz, Sampada Bodkhe, Daniel Therriault, Jean-Jacques Laurin, Mohammad S. Sharawi
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 5, Pp 1351-1364 (2024)
Shared aperture antennas are versatile structures that can fulfill the demand for multi-band compact antennas in multi-standard emerging communication systems. However, the requirement of operation at widely separated frequency bands, such as sub-6-G
Externí odkaz:
https://doaj.org/article/d4fc31dc3db541caafa46d80d5077dad
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract This work reports experimental investigation and numerical validation of millimeter-sized Spherical Bragg Resonators (SBRs) fabricated using 3D printing technology. The frequency dependencies of the reflection and transmission coefficients w
Externí odkaz:
https://doaj.org/article/0ff648681bf74c22a83e38c5525d0436
Autor:
Reza Shamsaee Malfajani, Hamed Niknam, Sampada Bodkhe, Daniel Therriault, Jean-Jacques Laurin, Mohammad S. Sharawi
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 614-625 (2023)
The design and implementation of a dual wide-band mushroom-shaped antenna are presented in this paper. The antenna consists of a cylindrical dielectric resonator (cDRA), a cylindrical dielectric rod as a waveguide (cDR), and a dielectric lens (DL). T
Externí odkaz:
https://doaj.org/article/c4e417336f294f9f8164ce62058366be
A 3D-Printed Encapsulated Dual Wide-Band Dielectric Resonator Antenna With Beam Switching Capability
Autor:
Reza Shamsaee Malfajani, Hamed Niknam, Sampada Bodkhe, Daniel Therriault, Jean-Jacques Laurin, Mohammad S. Sharawi
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 492-505 (2023)
This paper presents the concept of encapsulated dielectric resonator antennas (E-DRAs). In E-DRAs, smaller-sized DRAs with a specific permittivity is embedded inside a larger DRA with a lower permittivity allowing for simultaneous efficient radiation
Externí odkaz:
https://doaj.org/article/ae2999d4d53c4812921295a534f60250
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 60-68 (2023)
The design and implementation of a wideband single-mode dielectric resonator antenna (DRA) with a substrate integrated cavity-backed structure is presented in this paper. Two short-circuited striplines with differential feeding are placed inside the
Externí odkaz:
https://doaj.org/article/93fd4634d45c495bac0768e6517fa1ae
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 1, Pp 145-161 (2022)
This paper introduces a coupling matrix synthesis method tailored for a class of tunable bandpass filters (BPFs) with reconfigurable filtering characteristics. The filter has symmetric transmission zeros (TZs) which can be reconfigured on the real or
Externí odkaz:
https://doaj.org/article/bcabcd24b9fc4eae9b8d6acffb3e11b9
Publikováno v:
Electronics Letters, Vol 57, Iss 25, Pp 980-982 (2021)
Abstract An efficient modes analyses technique for isotropic or anisotropic material filled 2D metallic waveguides with an arbitrary contour using the multifilament current method (MFCM) is presented. The ideal PEC boundary of a 2D waveguide is repla
Externí odkaz:
https://doaj.org/article/2a9c000fc9d54790b7f17e6630c5e281
Publikováno v:
IEEE Access, Vol 9, Pp 48325-48340 (2021)
This paper proposes a varactor-based circuit technique intended for amplitude and phase control, with improved linearity in the presence of parasitic capacitances and parasitic inductances. The mechanism causing linearity degradation in an anti-serie
Externí odkaz:
https://doaj.org/article/7b0edb8e7511435a8015f822eaa49561
Publikováno v:
IEEE Access, Vol 8, Pp 80842-80854 (2020)
The formulations for three-dimensional (3D) scattering from uniaxial objects with a smooth boundary using a multiple infinitesimal dipole method (MIDM) are introduced. The proposed technique uses two sets of infinitesimal dipole triplets (IDTs), incl
Externí odkaz:
https://doaj.org/article/0e9c4af184644facbcd1c36106d0b4aa