DUAL U-SLOT LOADED PATCH ANTENNA WITH A MODIFIED L-PROBE FEEDING

Authors

  • Rakesh N. Tiwari
  • Prabhakar Singh
  • Binod Kumar Kanaujia

DOI:

https://doi.org/10.1590/2179-10742017v16i3867

Keywords:

Dual U-slot patch antenna, modified L-probe, multilayer patch antenna, gap coupled patch antenna, parasitic elements

Abstract

In this paper, a modified L-strip fed patch antenna is theoretically analyzed for wideband applications. Dual U-shaped slots are incorporated in the radiating patch and a maximum bandwidth of 16.93% (2.65 GHz to 3.14 GHz) is achieved. Further, when two parasitic elements are used, antenna bandwidth improves upto 25.89% (2.90 GHz to 3.77 GHz). The maximum gain of dual U-slotted patch and with parasitic elements is 8.23 dBi and 8.46 dBi respectively. Antenna parameters are calculated by CST Microwave studio and equivalent circuit model theory is presented. The proposed antenna is fabricated and the measured results compare well with the theoretical as well as simulated results.

References

[1] K.L.Wong, Compact and Broadband Microstrip Antennas, New York, Wiley, 2002.
[2] G. Kumar and K. P. Ray, Broadband Microstrip Antennas, Artech House, Norwood, MA, 2003.
[3] B. L. Ooi, “A double-π stub proximity feed U-slot patch antenna,” IEEE Trans. Antennas Propag.,
52, (2004), 2491-2496.
[4] Y. Sung, “Printed Wide-Slot Antenna With a Parasitic Center Patch,” IEEE Trans. Antennas
Propag., 60 (2012), 1712–1716.
[5] Y. Chen, S. Yang, and Z. Nie, “Bandwidth enhancement method for low profile E-shaped
microstrip patch antennas,” IEEE Trans. Antennas Propag., 58, (2010), 2442-2447.
[6] Y. Chen, and C. F. Wang, “Characteristic-mode-based improvement of circularly polarized U-slot
and E-shaped patch antennas,” IEEE Antennas Wirel. Propag. Lett., 11 (2012), 1474-1477.
[7] S. Bhardwaj, and R. Y. Samii, “A comparative study of C-shaped, E-shaped, and U-slotted patch
antennas,” Microw. Opt. Technol. Lett., 54 (2012), 1746–1757.
[8] K. F. Lee, S. L. S. Yang, A. A. Kishk, and K. M. Luk, “The versatile U-slot patch,” IEEE
Antennas and Propag. Magaz., 52 (2010), 71-88.
[9] Z. Wang, S. Fang, and S. Fu, “Wideband dual-layer patch antenna fed by a modified L-strip,”
Journal of Microw. Opt. and Electro. Applic., 9, (2010), 89-100.
[10] A. A. Deshmukh, and K. P. Ray, “Broadband proximity-fed modified rectangular microstrip
antenna,” IEEE Antenna Propag. Mag., 53 (2011), 1-5.
[11] L. Xu, L. Li, and W. Zhang, “Study and design of broadband bow-tie slot antenna fed with
asymmetric CPW,” IEEE Trans. Antenna Propag., 63 (2015), 760-765.
[12] J. A. Ansari, P. Singh, and N. P. Yadav, “Analysis of wideband multilayer patch antenna with two
parasitic elements,” Microw. Opt. Technol. Lett., 51 (2009), 1397–1401.
[13] N. Safa Nafea, Alyani Ismail, and Raja S. A. Raja Abdullah, “Low side lobe level multilayer
antenna for wireless applications,” Progress In Electromagnetics Research Letters, 58 (2016), 105–
111.
[14] W.-L.Chen,G.-M.Wang,andC.X. Zhang, “Bandwidth enhancement of a microstrip-line-fed printed
wide-slot antenna with a fractal-shaped slot,” IEEE Trans. Antennas Propag., 57 (2009), 2176–
2179.
[15] J.-Y. Jan, and L.-C. Tseng, “Small planar monopole antenna with a shorted parasitic inverted-L
wire for wireless communications in the 2.4, 5.2, and 5.8-GHz bands,” IEEE Trans. Antennas
Propag., 52 (2004), 1903–1905.
[16] J. H. Lee, and J. G. Yook, “Improvement of radiation performance of mobile phone antenna using
parasitic element,” IEEE Trans. Cons. Electron., 56 (2010), 2411–2415.
[17] Tsien-Ming Au, Kin-Fai Tong, and Kwai-Man Luk, “Theoretical and experimental studies of a
microstrip antenna with two parasitic patches,” Int J RF and Microwave CAE, 8 (1998), 49–55.
[18] K. C. Lin, C. H. Lin, and Y. C. Lin, “Simple printed multiband antenna with novel parasiticelements design for multistandard mobile phone application,” IEEE Trans. Antenna Propag., 61
(2013), 488-491.
[19] I. J. Bahl and P. Bhartia, Microstrip Antenna. Dedham, Artech House, MA 1980.
[20] R. K. Hoffman, Handbook of microstrip integrated circuits, Artech House, Norwood, MA8, 1987.
[21] C. A. Balanis, Antenna Theory: Analysis and Design, 2nd ed. New York: Wiley, 1996.
[22] Shivnarayan and B. R. Vishvakarma, “Analysis of inclined slot loaded patch for dual-band
operation,” Microw. Opt. Technol. Lett., 48 (2006), 2436-2441.
[23] A. Gopinath and K.C. Gupta, “Capacitance parameter of discontinuities in microstrip lines,” IEEE
Trans on Microwave Theory Tech, 26 (1978), 831-836.
[24] N. L. Kester, and R H. Jansen, “The equivalent circuit of the asymmetrical series gap in microstrip
and suspended substrate lines,” IEEE Trans on Microwave Theory Tech, 30 (1982), 1273-1279.

Downloads

Published

2017-08-01

How to Cite

Rakesh N. Tiwari, Prabhakar Singh, & Binod Kumar Kanaujia. (2017). DUAL U-SLOT LOADED PATCH ANTENNA WITH A MODIFIED L-PROBE FEEDING. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 16(3), 646–663. https://doi.org/10.1590/2179-10742017v16i3867

Issue

Section

Regular Papers