Results 41 to 50 of about 2,325 (294)

Applications of AMC-based impedance surfaces

EPJ Applied Metamaterials, 2018
The recent and major enhancements of artificial magnetic conductor (AMC) and their applications namely RCS reduction, low-profile antennas and holographic leaky wave antennas are reviewed.
Balanis Constantine A., Amiri Mikal Askarian, Modi Anuj Y., Pandi Sivaseetharaman, Birtcher Craig R.   +4 more
doaj   +1 more source

Gap Waveguide Leaky-Wave Antenna

IEEE Transactions on Antennas and Propagation, 2016
A novel leaky wave antenna, realized using gap waveguide concept, is here proposed. Both, the feeding structure and the antenna are realized in groove gap waveguide technology, thus simplifying the whole structure. A complete design procedure, starting from a given groove waveguide to the final radiation mechanism, is described in this paper.
Vukomanovic, Mladen, Vázquez Roy, José Luis, Quevedo Teruel, Óscar, Rajo Iglesias, Eva, Sipus, Zvonimir   +4 more
openaire   +4 more sources

Phase centre of Fabry-Pérot Cavity antennas: Leaky-wave model and analytical formulas [PDF]

, 2012
The phase centre of Fabry-Pérot Cavity antennas radiating broadside pencil beams is studied adopting a leaky-wave model of their radiation mechanism. Different definitions are considered for the phase centre, both local, based on curvature properties of
BURGHIGNOLI, Paolo, Paolo Burghignoli
core   +1 more source

DESIGN AND FABRICATION OF ULTRA-WIDEBAND LEAKY WAVE METAMATERIAL ANTENNAS [PDF]

Jordanian Journal of Computers and Information Technology, 2019
This article is devoted to the design, analysis and fabrication of conventional and metamaterial leaky wave antennas. The effects of utilizing composite right/left handed structure on bandwidth, gain and beam steering are reflected.
Mohamed Fathy Abo Sree, A. M. M. Allam, Muhammad Aly Ibrahim, Mohamed H. Abd El-Azeem, W. Swelam, Hadia El Hennawy   +5 more
doaj   +1 more source

Novel modal properties and relevant scanning behaviors of phased arrays of microstrip leaky-wave antennas [PDF]

, 2003
In this work, different previously-unexplored features are investigated for the radiation performance of linear phased arrays based on printed-circuit leaky-wave antennas for microwave and millimeter-wave applications.
LAMPARIELLO, Paolo, GALLI, Alessandro, FREZZA, Fabrizio, BACCARELLI, Paolo, BURGHIGNOLI, Paolo   +4 more
core   +1 more source

Leaky Horns: A New Paradigm of Developing Electromagnetic Horns Based on Leaky-Wave Structures

Electromagnetic Science
More than one-century history of microwaves has witnessed two seemingly unrelated developments of leaky-wave and horn antennas. While conventional horns cannot be made free from phase error even though the optimum horn criterion is adopted, this problem ...
Dongze Zheng, Ke Wu, Wei Hong
doaj   +1 more source

A leaky-wave analysis of the phase center in Fabry-Pérot cavity antennas [PDF]

, 2012
Phase centers are studied for Fabry-Perot cavity antennas viewed as two-dimensional uniform leaky-wave antennas radiating pencil beams pointing at broadside.
BURGHIGNOLI, Paolo
core   +1 more source

Printed tapered leaky-wave antennas for W-band frequencies [PDF]

, 2021
Despite their great potential in communication and sensing applications, printed leaky-wave antennas have rarely been reported at mm-wave frequencies.
Powell, David A, Liu, Mingkai, Olk, Andreas E ; https://orcid.org/   +2 more
core   +1 more source

Flexible Design of Broadside-Radiating Linearly-Polarized Edge-Fed Metasurface Antennas

IEEE Access
In this work, we design and fabricate broadside-radiating edge-fed metasurface antennas with linear polarization employing a spatially-varying isotropic reactance; in order to avoid losses, the antenna is not terminated on a matched load.
Lucia Teodorani, Marcello Zucchi, Giorgio Giordanengo, Rossella Gaffoglio, Giuseppe Vecchi   +4 more
doaj   +1 more source

Leaky wave antenna for millimeter wave utilization

Journal of Physics: Conference Series, 2021
Abstract The simulation of planar periodic leaky-wave antenna for ultra-wideband application is introduced here. The antenna proposed here comprises 15 matched unit cells with high directivity which provides a backward to forward beam scanning range of 80° with frequency from 24.4GHz to 27.5GHz and has filtering capability making the ...
Ruchi Agarwal, Ayushi Agarwal, Aman Dwivedi, Ashutosh Sharma   +3 more
openaire   +1 more source