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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ettorre, M. Valerio, G. Sauleau, R. Fuscaldo, W. Galli, A. Grbic, A. |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA (Grbic, A.) || Inst. d'Electron. et de Telecommun. de Rennes, Univ. of Rennes 1, Rennes, France (Ettorre, M.; Valerio, G.; Sauleau, R.; Fuscaldo, W.) || Dept. of Inf. Eng., Electron. & Telecommun., Sapienza Univ. of Rome, Rome, Italy (Galli, A.) |
| Abstract | This paper presents a novel direction in leaky-wave phenomenon research: the generation of non-diffractive Bessel beams by leaky-wave modes. A radial waveguide loaded by a capacitive impedance sheet is used to support an azimuthally invariant leaky-wave mode whose normal electric-field component is a truncated, zeroth-order Bessel function. In particular, the generation of propagating Bessel beams using the lowest and higher-order leaky-wave modes supported by the radial waveguide is considered. Design relations are provided in both cases, based on an accurate vector field approach and on the dispersion analysis of the proposed structure. Measurement results validate the design approach for the lowest order leaky-wave radial waveguide. Numerical results are presented for the higher-order case. Non-diffractive Bessel-beams may find application in sensing and wireless power transfer at microwaves and millimeter waves. |
| Starting Page | 444 |
| Ending Page | 447 |
| File Size | 592340 |
| Page Count | 4 |
| File Format | |
| ISBN | 9782874870354 |
| DOI | 10.1109/EuMC.2014.6986466 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-10-06 |
| Publisher Place | Italy |
| Access Restriction | Subscribed |
| Rights Holder | European Microwave Association |
| Subject Keyword | Impedance Cutoff frequency Dispersion Optical waveguides Apertures Equations Mathematical model Bessel beams leaky-wave modes near-field focusing nondiffractive beams |
| Content Type | Text |
| Resource Type | Article |
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