volume | PIER Journals

2012-04-18

Antenna Ultra Wideband Enhancement by Non-Uniform Matching

Mohamed Hayouni,

Dr. Mohamed Hayouni

Sup'COM

University of Carthage

Tunisia

Homepage

Ahmed El Oualkadi,

Prof. Ahmed El Oualkadi

Abdelmalek Essaadi University

Morocco

Homepage

Fethi Choubani,

Dr. Fethi Choubani

Sup'COM

University of Carthage

Tunisia

Homepage

Tan Hoa Vuong,

Dr. Tan Hoa Vuong

ENSEEIHT

University of Toulouse

France

Homepage

Jacques David

Dr. Jacques David

ENSEEIHT

University of Toulouse

France

Homepage

Progress In Electromagnetics Research Letters, Vol. 31, 121-129, 2012

doi:10.2528/PIERL12031002

Abstract

In this paper, antenna ultra wideband enhancement by non-uniform matching is proposed. The antenna consisted of a rectangular shaped radiator with two convex circled corners. Simulated results using CST Microwave Studio and measured results of a fabricated antenna concord well to prove that it can operate from about 3.5 GHz to 4.6 GHz and from 7.4 GHz to 12.7 GHz for S₁₁ (dB) < -10 dB. In addition, a good impedance matching is noted in the IEEE radar engineering X band range since the return loss coefficient remains below -50 dB value at 9.5 GHz and can reach -45 dB at 11 GHz. A current density comparison at 11 GHz, supporting our argument, between a stepper corner and convex corner demonstrates that the current density can reach 52 A/m with a convex corner whereas it does not exceed 33 A/m for the antenna with a stepper corners. Radiation patterns at various frequencies and peak gains show clearly interesting features of such antennas.

Citation

Copy Export

Mohamed Hayouni, Ahmed El Oualkadi, Fethi Choubani, Tan Hoa Vuong, and Jacques David, "Antenna Ultra Wideband Enhancement by Non-Uniform Matching," Progress In Electromagnetics Research Letters, Vol. 31, 121-129, 2012.
doi:10.2528/PIERL12031002

References

1. Waynes, S., T. Rowe, and R. B. Waterhouse, "Investigation into the performance of proximity coupled stacked patches," IEEE Transaction on Antennas and Propagation, 1693-1698, Jun. 2006.

2. Sun, D. and L. You, "A broadband impedance matching method for proximity coupled microstrip antenna," IEEE Transaction on Antennas and Propagation, 1392-1397, Apr. 2010.
doi:10.1109/TAP.2010.2041312

3. Kelly, J. R., P. S. Hall, and P. Gardner, "Planar band-notched UWB antenna," 3rd Conference Eucap'2009, 1636-1639, Mar. 2009.

4. Wong, K. L., Compact and Broadband Microstrip Antennas, Wiley, NY, 2002.

5. Sim, C.-Y.-D., W.-T. Chung, and C.-H. Lee, "Compact slot antenna for UWB applications," Antenna and Wireless Propagation Letters, 62-66, 2010.

6. Dastranj, A. and H. Abiri, "Bandwidth enhancement of printed E-shaped slot antennas fed by CPW and microstrip line," IEEE Transaction on Antennas and Propagation, 1402-1407, Apr. 2010.
doi:10.1109/TAP.2010.2041164

7. Lin, C.-C. and H.-R. Chuang, "A 3-12 GHz UWB planar triangular monopole antenna with ridged ground-plane," Progress In Electromagnetics Research, Vol. 33, 307-321, 2008.
doi:10.2528/PIER08070502

8. Choi, S. H., J. K. Park, S. K. Kim, and J. Y. Park, "A new ultra-wide band antenna for UWB application," Microwave and Optical Technologies Letters, 399-401, Mar. 2004.
doi:10.1002/mop.11392

9. Duroc, Y., T.-P. Vuong, and S. Tedjini, "A time/frequency model of ultrawideband antennas," IEEE Transaction on Antennas and Propagation, 2342-2350, Aug. 2007.
doi:10.1109/TAP.2007.901834

10. Chen, D. and C. H. Cheng, "A novel compact ultra-wideband (UWB) wide slot antenna with holes," Progress In Electromagnetics Research, Vol. 94, 343-349, 2009.
doi:10.2528/PIER09062306

11. Fallahi, R., A. A. Kalteh, and M. G. Roozbahani, "A novel UWB elliptical slot antenna with band-notched characteristics," Progress In Electromagnetics Research, Vol. 82, 127-136, 2008.
doi:10.2528/PIER08022603

12. Zhang, G.-M., J.-S. Hong, and B.-Z. Wang, "Two novel band-notched UWB slot antennas fed by microstrip line," Progress In Electromagnetics Research, Vol. 78, 209-218, 2008.
doi:10.2528/PIER07091201

13. Sze, J. Y. and K. L. Wong, "Bandwidth enhancement of a microstripline-fed printed wide-slot antenna," IEEE Transaction on Antennas and Propagation, 1020-1024, Jul. 2011.