Improved formulas for the Q of antennas with highly lossy dispersive materials

IEEE Antennas and Wireless Propagation Letters

Volumn 5, Issue 1, 2006, Pages 365-369

  Yaghjian, Arthur D ^a  

^a Air Force Research Laboratory   (United States)

Author keywords

Antennas; Bandwidth; Energy density; Quality factor

Indexed keywords

DISPERSIVE MATERIALS; DISPERSIVE MEDIA; ENERGY DENSITY; FRACTIONAL BANDWIDTHS; IMPEDANCE BANDWIDTHS; PARALLEL CIRCUITS; PASSIVE MEDIA; QUALITY FACTORS; WIRE ANTENNAS;

BANDWIDTH; KINETIC ENERGY;

ANTENNAS;

EID: 35148862315     PISSN: 15361225     EISSN: None     Source Type: Journal    
DOI: 10.1109/LAWP.2006.881913     Document Type: Article

References (9)

1. A. D. Yaghjian and S. R. Best, "Impedance, bandwidth, and Q of antennas," IEEE Trans. Antennas Propagat, vol. 53, pp. 1298-1324, Apr. 2005.
2. R. Loudon, "The propagation of electromagnetic energy through an absorbing dielectric," J. Phys. A, vol. 3, pp. 233-245, May 1970. Corrigendum, vol. 4, p. 450, Jul. 1970.
3. R. Ruppin, "Electromagnetic energy density in a dispersive and absorptive material," Phys. Lett. A, vol. 299, pp. 309-312, Jul. 2002.
4. S. A. Tretyakov, "Electromagnetic field energy density in artificial microwave materials with strong dispersion and loss," Phys. Lett. A, vol. 343, pp. 231-237, Jun. 2005.
5. A. D. Boardman, "Electromagnetic energy in a dispersive metamaterial," Phys. Rev. B, vol. 73, pp. 165 110-1-165 110-7, Apr. 2006.
6. L. J. Chu, "Physical limitations of omni-directional antennas," J. Appl. Phys., vol. 19, pp. 1163-1175, Dec. 1948.
7. R. E. Collin and S. Rothschild, "Evaluation of antenna Q," IEEE Trans. Antennas Propagai., vol. AP-12, pp. 23-27, Jan. 1964.
8. R. L. Fante, "Quality factor of general ideal antennas," IEEE Trans. Antennas Propagat, vol. AP-17, pp. 151-155, Mar. 1969.
9. Small Antennas, Sec. 6-5, Antenna Engineering Handbook, 2nd ed., R. C. Johnson and H. Jasik, Eds., McGraw-Hill, NewYork, 1984. H. A. Wheeler.