volume | PIER Journals

Antennas on High Impedance Ground Planes: on the Importance of the AntennaIsolation

, Vol. 41, 237-255, 2003

doi:10.2528/PIER02010892 | Google Scholar

Abstract

Photonic Band-Gapmaterials (PBG) are periodic structures composed of dielectric materials or metal. They exhibit frequency bands for which no propagation mode can propagate. Unfortunately, they are bulky and their period has to be at least a quarter wavelength. One extension of the PBG structures is called High impedance ground planes (High Z). Their period is much smaller and they exhibit frequency bands in which no surface wave can propagate. Their electromagnetic characteristics make them particularly interesting for antenna applications. On the one hand, they reduce the interaction between an antenna and its backward surroundings, with smaller size than usual ground planes. On the other hand, they can be used for planar antenna solutions, as the radiating element can be placed right on the top of the ground plane. After a presentation of the steps which lead to High Impedance ground planes, the electromagnetic characteristics of such ground planes are presented. Then, some antenna applications illustrate the interest of such structures.

Download Full Article (593) View Full Article volume

Citation

Copy Export

"Antennas on High Impedance Ground Planes: on the Importance of the AntennaIsolation," , Vol. 41, 237-255, 2003.
doi:10.2528/PIER02010892

References

1. Joannopoulos, J. D., R. D. Meade, and J. N. Winn, Photonic Crystals, Molding the Flow of Light, 1995.

2. Sigalas, M., C. T. Chan, K. M. Ho, and C. M. Soukoulis, "Metallic photonic band-gap materials," Physical Review B, Vol. 52, No. 16, 11744-11751, 1995.
doi:10.1103/PhysRevB.52.11744 Google Scholar

3. de Lustrac, A., F. Gadot, S. Cabaret, J. M. Lourtioz, T. Brillat, A. Priou, and E. Akmansoy, "Experimental demonstration of electrically controllable photonic crystals at centimeter wavelengths," Appl. Phys. Lett., Vol. 75, No. 11, 1625-1627, 1999.
doi:10.1063/1.124775 Google Scholar

4. Poilasne, G., P. Pouliguen, K. Mahdjoubi, L. Desclos, and C. Terret, "Active photonic band-gap materials (MPBG), beam shaper experimental results," IEEE Transactions on Antennas and Propagation, No. 1, 2000. Google Scholar

5. Sievenpiper, D. F., E. Yablonovitch, J. N. Winn, S. Fan, P. R. Villeneuve, and J. D. Joannopoulos, "3D metallo-dielectric photonic crystals with strong capacitive coupling between metallic islands," Phys. Rev. Lett., Vol. 80 No. 13, No. Vol. 80 13, 2829-2832, 1998.
doi:10.1103/PhysRevLett.80.2829 Google Scholar

6. Chan, C. T., W. Y. Zhang, Z. L. Wang, X. Y. Lei, D. G. Zheng, W. Y. Tam, and P. Sheng, "Photonic band gaps from metallodielectric spheres," Physica B, Vol. 279No.1-3, No. Vol.2791-3, 150-154, 2000.
doi:10.1016/S0921-4526(99)00705-X Google Scholar

7. Ramo, W. and Van Duzer, Fields and Waves in Communication Electronics, 2nd ed., 1984.

8. Sievenpiper, D., "High impedance electromagnetic surfaces," Ph.D. Thesis, 1999. Google Scholar

9. Sievenpiper, D., L. J. Zhang, R. F. J. Broas, N. G. Alexopolous, and E. Yablonovitch, "High-impedance electromagnetic surfaces with a forbidden frequency band," IEEE T. Microw. Theory, Vol. 47 No. 11, No. Vol. 47 11, 2059-2074. Google Scholar