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Full wave analysis of leaky-wave antennas
2008 IEEE Antennas and Propagation Society International Symposium, 2008Leakage from slotted waveguides is a well-known phenomenon and has been thoroughly investigated during the past decades. The interest in leaky-wave antennas mainly stems from the possibility of scanning the beam with frequency [1]. The analysis of slotted waveguides has been first performed by means of a transverse network representation of the open ...
LUCIDO, Mario +3 more
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Millimeter-wave dielectric leaky-wave antennas
Proceedings of ISSE'95 - International Symposium on Signals, Systems and Electronics, 2002A dielectric leaky-wave antenna with a new perturbation scheme is developed. The attenuation constant with different gap width between metal patches is determined experimentally. The dielectric waveguide used is an anisotropic sapphire rod. The conventional effective dielectric constant (EDC) method is modified to calculate the unperturbed propagation ...
null Chung-Yi Lee +5 more
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Leaky-wave antennas with anisotropic metamaterials
2010 IEEE Antennas and Propagation Society International Symposium, 2010Leaky wave antennas can offer high directivity and frequency scanning [1]. An isotropic dielectric slab with refractive index n > 1 does not radiate effectively unless spatial variations are introduced to excite fast-wave space harmonics [1]. To realize uniform leaky wave structures, potentially in the optical domain, a metamaterial slab with n ≪ 1 has
null Huikan Liu, K J Webb
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Leaky wave Antenna for mobile phones
International Meeting on Advanced Technologies in Energy and Electrical Engineering, 2020Millimeter wave (mm-wave) is today’s breakthrough frontier for emerging wireless mobile cellular networks, wireless local and personal area networks, simultaneous energy/data transfer, wearable networks, vehicular communications and radar. Directive antennas emerge as a key component in most of these applications driven by the requirement to meet ...
Youssef El Gholb +3 more
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A Reconfigurable Leaky Wave Antenna
2023 33rd International Conference Radioelektronika (RADIOELEKTRONIKA), 2023Jan Machac +2 more
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RCS of a Microstrip Leaky-Wave Antenna
IEEE Antennas and Wireless Propagation Letters, 2013The monostatic radar cross section (RCS) of a microstrip leaky-wave antenna (MLWA) is investigated. Both full-wave simulation and laboratory measurement are carried out to characterize its RCS as a function of frequency and aspect angle. Three distinct scattering features in the range-aspect plane are observed.
Shang-Te Yang, Hao Ling
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Resonance analysis of the leaky-wave antenna
2014 International Symposium on Antennas and Propagation Conference Proceedings, 2014The resonance analysis of the leaky-wave antenna with the microstrip feeding has been presented in this paper. Owing to an open-end structure of the leaky-wave antenna, we analyze the antenna by using the cavity-mode technique. Two conventional leaky-wave antennas with two different lengths, defined by the short and long cases, are shown to examine ...
Jhong-Wei Wu, Yang Tai, Chien-Jen Wang
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Detection of IEDs with leaky wave antennas
2015 8th International Workshop on Advanced Ground Penetrating Radar (IWAGPR), 2015A novel leaky wave antenna with ultrawide band radiation and high fidelity (low dispersivity) is presented. The suitability of this antenna for a hand-held GPR is evaluated through measurements in a quasi-monostatic setup of an antipersonnel mine and an anti-tank IED-like object buried in dry sand.
Deiana, D., Nennie, F., Monni, S.
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New millimeter-wave leaky-wave antennas
Proceedings of 1997 Asia-Pacific Microwave Conference, 2002This paper describes a variety of leaky-wave line sources derived from an open waveguide, on which modifications in the cross section are introduced to produce radiation. This allows the control of the leakage rate along the length of the radiator making it possible to shape the radiation pattern.
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Lumped Element and Leaky-Wave Antennas for Millimeter Waves.
1984Abstract : Some millimeter wave antennas can be scaled from their microwave frequency counterparts, but others cannot because of two main problems; the small wavelengths, which require small waveguide dimensions and pose fabrication difficulties, and higher metal loss.
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