Results 231 to 240 of about 9,348 (290)

Terminal-Matched Topological Photonic Substrate-Integrated Waveguides and Antennas for Microwave Systems. [PDF]

open access: yesAdv Sci (Weinh)
Xu Z   +8 more
europepmc   +1 more source

High gain multi-band circularly polarized wearable leaky wave zipper MIMO antenna. [PDF]

open access: yesHeliyon
Saeidi T   +6 more
europepmc   +1 more source

Horn Image-Guide Leaky-Wave Antenna

IEEE Transactions on Microwave Theory and Techniques, 1981
A novel approach for designing a frequency-scanning millimeter-wave antenna is described. The antenna is constructed by using an image wide leaky-wave antenna embedded in a long trough with metal flares along both sides. The optimum flare angle for achieving maximum gain is theoretically predicted.
Raj Mittra
exaly   +2 more sources

Leaky-Wave Antennas

Proceedings of the IEEE, 2012
This paper gives a basic review and a summary of recent developments for leaky-wave antennas (LWAs). An LWA uses a guiding structure that supports wave propagation along the length of the structure, with the wave radiating or “leaking” continuously along the structure. Such antennas may be uniform, quasi-uniform, or periodic.
David R. Jackson   +2 more
openaire   +1 more source

A History of Leaky Waves and Leaky-Wave Antennas

2019 URSI International Symposium on Electromagnetic Theory (EMTS), 2019
The history of leaky waves and leaky-wave antennas is an interesting one, with much of the theory being put on a firm foundation in the 1950s and 1960s by early pioneers such as Nathan Marcuvitz and Arthur A. Oliner. Rapid development of leaky-wave antennas took place after the foundation was established, and the development spread to areas such as ...
Jackson D R   +5 more
openaire   +3 more sources

Leaky-wave antennas

2016
Millimeter waveguides, such as coplanar lines, microstrip lines and dielectric guides, are open structures where energy leakage is bound to occur. This leakage can occur, for example, when there are discontinuities in the guiding structure, or perhaps when the guide is excited in an inappropriate mode.
GALLI, Alessandro   +2 more
  +5 more sources

A trough leaky-wave antenna

2009 IEEE Antennas and Propagation Society International Symposium, 2009
In this paper, a trough leaky-wave antenna is considered that was inspired by the half-width microstrip leaky-wave. The TLW antenna is naturally suitable for flush-mount installation in a metallic body such as an automobile. The radiation characteristics will be investigated in more detail such as the design of the matching cavities and their effect on
Carlos A. Jaramillo-Henao   +2 more
openaire   +2 more sources

Dirac Leaky Wave Antennas

2018 Fifth International Conference on Millimeter-Wave and Terahertz Technologies (MMWaTT), 2018
Dirac leaky-wave antennas (DLWAs) are derived from photonic crystals exhibiting Dirac cone dispersion around their $\Gamma$-point. DLWAs provide high directive beams and continuous frequency beam scanning, non-fluctuating leakage constant and real non-zero Bloch impedance at and around broadside, due to the closed and linear Dirac dispersion relation ...
Sina Rezaee, Mohammad Memarian
openaire   +1 more source

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