Results 31 to 40 of about 923 (173)

MEMS-reconfigurable metamaterials and antenna applications [PDF]

open access: yes, 2014
This paper reviews some of our contributions to reconfigurable metamaterials, where dynamic control is enabled by micro-electro-mechanical systems (MEMS) technology.
Debogovic, Tomislav   +1 more
core   +3 more sources

Partially filled half-mode substrate integrated waveguide leaky-wave antenna for 24 GHz automotive radar [PDF]

open access: yes, 2021
A novel highly efficient leaky-wave antenna (LWA), based on a periodic set of holes created in a half-mode substrate integrated waveguide (SIW), is conceived for automotive radar.
Kapusuz, Kamil Yavuz   +3 more
core   +1 more source

A Novel Frequency Scanning Leaky-Wave Antenna Based on Corrugated Substrate Integrated Waveguide

open access: yesInternational Journal of Antennas and Propagation, 2018
In order to facilitate the integration of active devices, a leaky-wave antenna (LWA) based on corrugated substrate integrated waveguide (CSIW) structure is proposed. By introducing rectangular ring slots on the CSIW structure, the proposed LWA is capable
Ke Chen   +4 more
doaj   +1 more source

Dual-Beam Leaky-Wave Antenna Array With Capability of Fixed-Frequency Beam Switching

open access: yesIEEE Access, 2020
A novel fixed-frequency beam switchable dual-beam antenna array is presented, which consists five dual-beam leaky-wave antenna (LWA) elements designed on substrate integrated waveguide (SIW) and integrated together on a common substrate. The LWAs work on
Xiaowen Li   +5 more
doaj   +1 more source

High Efficiency and Broadband Microstrip Leaky-Wave Antenna

open access: yesActive and Passive Electronic Components, 2008
A novel layout of leaky-wave antennas based on tapered design has been proposed and investigated. The new tapered leaky-wave antenna (LWA) was designed running a simple procedure which uses an FDTD code, and using a suitable metal walls down the ...
Onofrio Losito
doaj   +1 more source

Backscattering-Based Radiation Mode Analysis for Angle Estimation of a CRLH Leaky Wave Antenna [PDF]

open access: yesAdvances in Radio Science
This study explores the extraction of the radiation mode field from backscattering field components of a composite right/left-handed (CRLH) leaky wave antenna (LWA) to estimate the relative angle to the radiation mode field within its frequency band of ...
J. A. Oladapo   +2 more
doaj   +1 more source

A Photonically-Excited Leaky-Wave Antenna Array at E-Band for 1-D Beam Steering

open access: yesApplied Sciences, 2020
This manuscript reports the first leaky-wave antenna (LWA) array excited by a photomixer as well as its potential application for alignment in wireless links.
Álvaro J. Pascual-Gracia   +7 more
doaj   +1 more source

General Mapping between Complex Spatial and Temporal Frequencies by Analytical Continuation

open access: yes, 2020
This paper introduces a general technique for inter-mapping the complex spatial frequency (or propagation constant) $\gamma=\alpha+j\beta$ and the temporal frequency $\omega = \omega_\text{r}+j\omega_\text{i}$ of an arbitrary electromagnetic structure ...
Caloz, Christophe, Dehmollaian, Mojtaba
core   +2 more sources

Design of CRLH Leaky-Wave Antenna With Low Sidelobe Level

open access: yesIEEE Access, 2019
Composite right/left-handed (CRLH) waveguide leaky-wave antenna (LWA) with low sidelobe level (SLL) and high radiation efficiency is investigated and designed in this paper.
Qingshan Yang   +2 more
doaj   +1 more source

Magneto-Electric Dipole Antenna Arrays [PDF]

open access: yes, 2014
A planar magneto-electric (ME) dipole antenna array is proposed and demonstrated by both full-wave analysis and experiments. The proposed structure leverages the infinite wavelength propagation characteristic of composite right/left-handed (CRLH ...
Caloz, Christophe   +2 more
core   +3 more sources

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