The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Spiral Leaky-Wave Antennas Based on Modulated Surface Impedance
Abstract
Different kinds of spiral planar circularly polarized (CP) antennas are presented. These antennas are based on an interaction between a cylindrical surface-wave excited by an omnidirectional probe and a inhomogeneous surface impedance with a spiral pattern. The surface impedance interaction transforms a bounded surface wave into a circularly polarized leaky wave with almost broadside radiation. The problem is studied by adiabatically matching the local 2D solution of a modulated surface-impedance problem to the actual surface. Analytical expressions are derived for the far-field radiation pattern; on this basis, universal design curves for antenna gain are given and a design procedure is outlined. Two types of practical solutions are presented, which are relevant to different implementations of the impedance modulation: i) a grounded dielectric slab with a spiral-sinusoidal thickness and ii) a texture of dense printed patches with sizes variable with a spiral-sinusoidal function. Full wave results are compared successfully with the analytical approximations. Both the layouts represent good solutions for millimeter wave CP antennas.
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Cites
Scalar and Tensor Holographic Artificial Impedance Surfaces
Fong, B. H., Colburn, J. S., Ottusch, J. J., Visher, J. L., & Sievenpiper, D. F. (2010) · IEEE Transactions on Antennas and Propagation · doi:10.1109/tap.2010.2055812 · Cited by 860
Theory of Periodic Dielect Waveguides
Peng, S. T., Tamir, T., & Bertoni, H. L. (1975) · IEEE Transactions on Microwave Theory and Techniques · doi:10.1109/tmtt.1975.1128513 · Cited by 449
Low-Profile Equiangular Spiral Antenna Backed by an EBG Reflector
Nakano, H., Kikkawa, K., Kondo, N., Iitsuka, Y., & Yamauchi, J. (2009) · IEEE Transactions on Antennas and Propagation · doi:10.1109/tap.2009.2016697 · Cited by 117
Cited by
Flat optics with designer metasurfaces
Yu, N., & Capasso, F. (2014) · Nature Materials · doi:10.1038/nmat3839 · Cited by 5,984
Huygens’ metasurfaces via the equivalence principle: design and applications
Epstein, A., & Eleftheriades, G. V. (2016) · Journal of the Optical Society of America B · doi:10.1364/josab.33.000a31 · Cited by 382
Metadata
- Authors
- Minatti, G., Caminita, F., Casaletti, M., & Maci, S.
- Venue
- IEEE Transactions on Antennas and Propagation
- Published
- 2011-12
- Volume
- 59
- Issue
- 12
- Pages
- 4436-4444
- ISSN
- 0018-926X (ISSN-L)
- OpenAlex
- W2036317156
- Cited by
- 323
- References
- 3
- FWCI
- 34.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Minatti, G., Caminita, F., Casaletti, M., & Maci, S. (2011). Spiral Leaky-Wave Antennas Based on Modulated Surface Impedance. IEEE Transactions on Antennas and Propagation. https://doi.org/10.1109/tap.2011.2165691
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