Multiband Antenna Formed of Superimposed Compressed Loops

Abstract:

A compressed multiple band loop antenna that has multiple superimposed compressed loops. Each compressed loop is formed from numerous segments arrayed in multiple diverse directions so that the enclosed area of that loop and the overall size of the antenna are decreased. Multiple loops are arrayed and superimposed to provide multiple frequency bands of operation and are used to broaden the useful bandwidth of individual-bands. The small size of the compressed antenna facilitates its use in small mobile communications devices requiring internal antennas that operate in close proximity to conductive surfaces. Multiple loops are arrayed in several configurations that include nested and non-nested loops as well as closely located and spatially separated superimposed loops.

• Periodical: Applied Mechanics and Materials (Volumes 548-549)
• Pages: 780-784
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.548-549.780
• Online since: April 2014
• Authors: Jesada Sivaraks*, Settapong Malisuwan
• Keywords: Antenna, Electric Dipole, Magnetic Dipole, Multiple Band Loop

References

[1] D. A. Howard, Arrayed-segment loop antenna, ed: Google Patents, (2003).

[2] A. Z. Elsherbeni, FDTD Course Notes, Department of Electrical Engineering, The University of Mississippi, MS, Spring (2001).

[3] R. F. Harrington, Time-Harmonic Electromagnetic Fields, McGraw-Hill, New York, (1961).

[4] D. A. Hill, An Error Bound for Near-Field Array Synthesis, Electromagnetic Compatibility, IEEE Transactions on, vol. 28, pp.273-276, (1986).

DOI: 10.1109/temc.1986.4307300

[5] G. R. Paul, K. W. John, R. O. Jose, and Jesada. S, Loop antenna formed of multiple nested irregular loops, ed: Google Patents, (2003).