论文信息 - Q‐factor investigation of antennas over metamaterials substrates

Q‐factor investigation of antennas over metamaterials substrates

In this article, antennas over metamaterials substrates are investigated with the radiating Q factor determined by using a time-domain method.The main objective is to illustrate the electromagnetic behavior of this kind of complex structure by calculating its energy budget (stored and radiated energies). An example of a patch antenna using such materials is analyzed and experimental results are presented. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1321–1325, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25213

[1] Philippe Besnier,et al. Efficiency Measurement of UWB Antennas Using Time Reversal in Reverberation Chamber. , 2008 .

[2] A. M. Nicolson,et al. Measurement of the Intrinsic Properties of Materials by Time-Domain Techniques , 1970 .

[3] S. Best,et al. Impedance, bandwidth, and Q of antennas , 2005 .

[4] K. Sarabandi,et al. Magneto-dielectrics in electromagnetics: concept and applications , 2004, IEEE Transactions on Antennas and Propagation.

[5] L. Kempel,et al. Patch antennas on ferromagnetic substrates , 1997, IEEE Antennas and Propagation Society International Symposium 1997. Digest.

[6] W. Weir. Automatic measurement of complex dielectric constant and permeability at microwave frequencies , 1974 .

[7] S. Tretyakov,et al. On artificial magnetodielectric loading for improving the impedance bandwidth properties of microstrip antennas , 2006, IEEE Transactions on Antennas and Propagation.

[8] R. C. Hansen,et al. Antennas with magneto‐dielectrics , 2000 .

[9] Sylvain Collardey,et al. Evaluation of antenna radiation Q using FDTD method , 2005 .

[10] L. J. Chu. Physical Limitations of Omni‐Directional Antennas , 1948 .

[11] Sergei A. Tretyakov,et al. Magnetic properties of novel high impedance surfaces , 2007 .

[12] R. Collin,et al. Evaluation of antenna Q , 1964 .

[13] Yahya Rahmat-Samii,et al. Patch antennas on externally perforated high dielectric constant substrates , 1999 .