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Current Trends in Science and Technology

an Open Access Publication ISSN: 0976-9730 | 0976-9498

Engineering and Technology

Circular Patch Antenna Gain Enhancement Using AMC Structures for WLAN

Mr. Dhende Abhijeet T
ME-Signal Processing (E&TC) Jaihind College of Engineering, Kuran, India atdhende@gmail.com Asst. Prof. & HOD, Department of E&TC)
Mrs. Dhede Vaishali M.
Jaihind College of Engineering, Kuran, India Vaishali_dhede@rediffmail.com
Online First: February 21, 2018
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Abstract

In wireless communication system especially in mobile communication it becomes a challenge to reduce antenna size with the enhancement of antenna performance. One of the techniques to improve antenna performance and reduce antenna size by using an artificial magnetic conductor (AMC) ground plane. Gain enhancement of microstrip patch antenna preferring artificial magnetic conductor (AMC) structure is presented. The proposed AMC is of hexagonal shape 3x3 unit cell loaded square patch on a ground substrate. The high gain characteristics is achieved using circular patch antenna with AMC hexagonal unit cell technique. The antenna with dimension 82.0 mm × 94.0 mm × 1.6 mm has been designed on FR4 substrate having dielectric constant 4.4 and thickness h=1.53 mm. The proposed antenna exhibits 30MHz bandwidth from 2.42-2.45GHz and has a compact size, high gain characteristics, good radiation characteristics and 6.4dB directivity. Performance characteristics of this antenna i.e. radiation pattern, return loss, VSWR and gain are simulated using the HFSS software. The AMC Hexagonal unit patch antenna is compact, low profile and offers very high gain required for long way Communication.

Keyword : Microstrip antenna, Circular patch, AMC structure, Hexagonal unit cell, etc

  Submitted
Feb 21, 2018
Published
Feb 21, 2018
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References

[1] R. Collin, Field Theory of Guided Waves, 2nd Ed. New York: IEEE Press, 1991. [2] G. P. Gauthier, A. Courtay, and G. H. Rebeiz “Microstrip antennas on synthesized low dilectric-constant substrate”, IEEE Trans. Microwave Theory Techn., vol. 45, pp. 1310-1314, Aug. 1997. [3] J. S. Colburn and Y. Rahmat-Sammii, “Patch antennas on externally perforated high dielectric constant substrate”, IEEE Trans. Microwave Theory Techn., vol. 47, pp. 1785-1794, Dec. 1999. [4] D.M. Kokotoff, R.B. Waterhouse, C.R. Britcher, and J.T. Aberle, “Anular ring coupled circular patch with enhanced performance”, Electron. Letters, vol.33, pp. 2000-2001, Nov. 1997. [5] R.G. Rojas, and K.W. Lee, “Surface wave control using no periodic parasitic strips in printed antennas”, IEE Pros.- Microw. Antennas Propag. vol.148, pp. 25-28, Feb. 2001. [6] D. Sievenpiper, Z. Lijun, R. F. J. Broas, N. G. Alexopolus, and E.Yablonovitch, “High-impedance electromagnetic surfaces with a forbidden frequency band,” IEEE Trans. Microw. Theory Tech., vol. 47,pp. 2059–2074, Nov. 1999. [7] T. Nakamura and T. Fukusako, “Broadband design of circularly polarized microstrip patch antenna using artificial ground structure with rectangular unit cells,” IEEE Trans. Ant. Prop., vol. 59, pp. 2103–2110, Jun. 2011. [8] J. C. I. Galarregui, A. T. Pereda, J. L. M. Falcon, I. Ederra, R. Gonzalo,and P. D. Maagt, “Broadband Radar cross-section reduction using AMC technology,” IEEE Trans. Ant. Prop., vol. 61, pp. 6136–6143, Dec. 2013. [9] J. C. I. Galarregui, A. T. Pereda, J. L. M. Falcon, I. Ederra, R. Gonzalo, and P. D. Maagt, “Novel array EBG structures for ultra-wide band simultaneous switching noise suppression,”IEEE Ant. Wire. Prop. Lett. vol. 10, pp. 588–591, Jun. 2011. [10] D. Yan, Q. Gao, C. Wang, and N. Yuan, “Strip-Type AMC Structure and Analysis to its Band-Gap Characteristic”, Prog. in Electromagn. Res. Symp. 2005, Hangzhou, vol. 1, pp. 505- 509, Aug. 2005
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References

[1] R. Collin, Field Theory of Guided Waves, 2nd Ed. New York: IEEE Press, 1991.
[2] G. P. Gauthier, A. Courtay, and G. H. Rebeiz “Microstrip antennas on synthesized low dilectric-constant substrate”, IEEE Trans. Microwave Theory Techn., vol. 45, pp. 1310-1314, Aug. 1997.
[3] J. S. Colburn and Y. Rahmat-Sammii, “Patch antennas on externally perforated high dielectric constant substrate”, IEEE Trans. Microwave Theory Techn., vol. 47, pp. 1785-1794, Dec. 1999.
[4] D.M. Kokotoff, R.B. Waterhouse, C.R. Britcher, and J.T. Aberle, “Anular ring coupled circular patch with enhanced performance”, Electron. Letters, vol.33, pp. 2000-2001, Nov. 1997.
[5] R.G. Rojas, and K.W. Lee, “Surface wave control using no periodic parasitic strips in printed antennas”, IEE Pros.- Microw. Antennas Propag. vol.148, pp. 25-28, Feb. 2001.
[6] D. Sievenpiper, Z. Lijun, R. F. J. Broas, N. G. Alexopolus, and E.Yablonovitch, “High-impedance electromagnetic surfaces with a forbidden frequency band,” IEEE Trans. Microw. Theory Tech., vol. 47,pp. 2059–2074, Nov. 1999.
[7] T. Nakamura and T. Fukusako, “Broadband design of circularly polarized microstrip patch antenna using artificial ground structure with rectangular unit cells,” IEEE Trans. Ant. Prop., vol. 59, pp. 2103–2110, Jun. 2011.
[8] J. C. I. Galarregui, A. T. Pereda, J. L. M. Falcon, I. Ederra,
R. Gonzalo,and P. D. Maagt, “Broadband Radar cross-section reduction using AMC technology,” IEEE Trans. Ant. Prop., vol. 61, pp. 6136–6143, Dec. 2013.
[9] J. C. I. Galarregui, A. T. Pereda, J. L. M. Falcon, I. Ederra,
R. Gonzalo, and P. D. Maagt, “Novel array EBG structures for ultra-wide band simultaneous switching noise suppression,”IEEE Ant. Wire. Prop. Lett. vol. 10, pp. 588–591, Jun. 2011.
[10] D. Yan, Q. Gao, C. Wang, and N. Yuan, “Strip-Type AMC Structure and Analysis to its Band-Gap Characteristic”, Prog. in Electromagn. Res. Symp. 2005, Hangzhou, vol. 1, pp. 505- 509, Aug. 2005
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