Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas

By Alexandros P. Feresidis, George Goussetis, Shenhong Wang, C. Vardaxoglou. IEEE Transactions on Antennas and Propagation, 2005

967 citations recorded by the source corpus.

Planar periodic metallic arrays behave as artificial magnetic conductor (AMC) surfaces when placed on a grounded dielectric substrate and they introduce a zero degrees reflection phase shift to incident waves. In this paper the AMC operation of single-layer arrays without vias is studied using a resonant cavity model and a new application to high-gain printed antennas is presented. A ray analysis is employed in order to give physical insight into the performance of AMCs and derive design guidelines. The bandwidth and center frequency of AMC surfaces are investigated using full-wave analysis and the qualitative predictions of the ray model are validated. Planar AMC surfaces are used for the first time as the ground plane in a high-gain microstrip patch antenna with a partially reflective surface as superstrate. A significant reduction of the antenna profile is achieved. A ray theory approach is employed in order to describe the functioning of the antenna and to predict the existence of quarter wavelength resonant cavities.

Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/40dcb591c7727259f1ba281c778f087a2ce26f56

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aerospace Engineering

1. T. Cui
2. Y. Guo
3. Shuo Liu
4. Andrew R. Weily
5. Trevor S. Bird
6. Shreya Singh
7. Aobo Li
8. Lei Zhang

In Electronic, Optical and Magnetic Materials

1. T. Cui
2. Shuo Liu
3. Lei Zhang
4. Shreya Singh
5. Aobo Li
6. Andrew R. Weily
7. José Luis Gómez-Tornero
8. Y. Guo

Citations in the corpus

• Tailoring the AMC and EBG characteristics of periodic metallic arrays printed on grounded dielectric substrate (2006, background): “Previous work has focused on providing insight on the operation of the AMC surfaces without vias [12], [13].”
• A Low-Profile Dual-Polarized Dipole Antenna Using Wideband AMC Reflector (2018, background): “5(b) shows that with the incident angles θ increased from 0° to 20°, 40°, and 60°, the operating bandwidths, defined as the frequency ranges within π /2 in the reflection-phase curves [19], of the AMC shift from 1.”
• Metantenna: When Metasurface Meets Antenna Again (2020, background): “The latter work documented in [128] replaced the ground of the Fabry–Perot cavity by artificial magnetic conductor (AMC) comprising sub-wavelength square patch elements.”
• A Reconfigurable High-Gain Partially Reflecting Surface Antenna (2008, methodology): “By combining a PRS material with an artificial magnetic conductor (AMC) or a metamaterial ground plane, the profile of the PRS antenna can be significantly reduced [10], [11].”
• Electronically Steerable 1-D Fabry-Perot Leaky-Wave Antenna Employing a Tunable High Impedance Surface (2012, background): “An interesting advantage of this new reconfigurable topology resides in its potential application to two-dimensional FP LWAs [32], [33], [35], [40] and to new metasurface LWAs [47], [48], so that the electronic scanning could be extended for both elevation and azimuthal planes.”
• Metasurfaces and their applications (2018, background): “This property is equivalent to a magnetic conductor but with limited bandwidth and is often called an artificial magnetic conductor [48], because the tangential magnetic field at the surface is zero, rather than the electric field, as seen on an electric conductor.”
• Realization of Low Scattering for a High-Gain Fabry–Perot Antenna Using Coding Metasurface (2017, background): “On the contrary, Fabry–Perot (F-P) antennas featuring high gain and low profile have attracted broad interests from research in both physics and engineering communities in recent years [5]–[10].”
• Array thinning by using antennas in a Fabry-Perot cavity for gain enhancement (2006, neutral): “dipoles or other more complex geometries [13]–[15].”
• A Printed Leaky-Wave Antenna Based on a Sinusoidally-Modulated Reactance Surface (2011, background): “N recent years, there has been strong interest in high gain, low profile antennas that can be easily integrated into the surfaces of vehicles or other platforms [1]–[ 4 ].”