volume | PIER Journals

Abstract

Abstract-In this paper, a compact band-notched UWB planar antenna with Transmission-Line-fed is presented and I'm using a new technique by etching a narrowband resonance H-shape slot in the ground plane of the antenna. This antenna is capable reducing the interference at the WLAN bands by eliminating the 4.85-6.17 GHz band. The proposed antenna has compact size of 16 × 22mm² including the ground plane and because of miniature dimensions, good radiation patterns with monopolar characteristics are obtained in the frequency band of interest i.e., at least 10 dB isolation exists between co-polarization and cross-polarization. The gain is suppressed very well in WLAN bands. The maximum suppression is in 5.4 GHz that is 13.6 dB less than the gain of normal antenna.

1. Anon FCC First Report and Order on Ultra-wideband Technology, Feb. 2002.

2. Young, J. and L. Peter, "A brief history of GPR fundamentals and applications," Proc. 6th Int. Conf. Ground Penetrating Radar, 5-14, 1996. Google Scholar

3. Daniels, D. J., "Surface-penetrating radar," IEE Radar Sonar Navigation Avionics Series 6, 72-93, 1996. Google Scholar

4. Fontana, R. J., "Recent system applications of short-pulse ultrawideband (UWB) technology," IEEE Trans. MTT, Vol. 52, No. 9, 2087-2104, 2004.
doi:10.1109/TMTT.2004.834186 Google Scholar

5. Eldek, A. A., "Numerical analysis of a small ultra-wideband microstrip-fed tap monopole antenna," Progress In Electromagnetics Research, Vol. 66, 199-212, 2006. Google Scholar

6. Liu, W. C. and C. F. Hsu, "CPW-fed notched monopole antenna for umts/imt-2000/WLAN applications," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 6, 841-851, 2007.
doi:10.1163/156939307780749138 Google Scholar

7. Gao, S. and A. Sambell, "A simple broadband printed antenna," Progress In Electromagnetics Research, Vol. 60, 119-130, 2006.
doi:10.2528/PIER05092603 Google Scholar

8. Joardar, S. and A. B. Bhattacharya, "Two new ultrawideband dual polarized antenna-feeds using planar log periodic antenna and innovative frequency independent reflectors," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 11, 1465-1479, 2006.
doi:10.1163/156939306779274318 Google Scholar

9. Chen, X. and K. Huang, "Wideband properties of fractal bowtie dipoles," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 11, 1511-1518, 2006.
doi:10.1163/156939306779274345 Google Scholar

10. Shams, K. M. and M. Ali, "A planar inductively coupled bow-tie slot antenna for WLAN application," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 7, 861-871, 2006.
doi:10.1163/156939306776149879 Google Scholar

11. Zhou, H. J., Q. Z. Liu, J. F. Li, and J. L. Guo, "A swallow-tailed wideband planar monopole antenna with semi-elliptical base," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 9, 1257-1264, 2007. Google Scholar

12. Kim, K.-H. and S.-O. Park, "Analysis of the small band-rejected antenna with the parasitic strip for UWB," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 6, 1688-1692, June 2006.
doi:10.1109/TAP.2006.875911 Google Scholar

13. Cho, Y. J., K. H. Kim, D. H. Choi, S. S. Lee, and S. O. Park, "A miniature UWB planar monopole antenna with 5 GHz band-rejection filter and the time-domain characteristics," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 5, 1453-1460, May 2006.
doi:10.1109/TAP.2006.874354 Google Scholar

14. Ma, T.-G. and S.-J. Wu, "A new band-notched U-shape folded monopole antenna for UWB applications," Antennas and Propagation Society International Symposium 2006, 1643-1646, July 9-14 2006. Google Scholar

15. Kim, K.-H., Y.-J. Cho, S.-H. Hwang, and S.-O. Park, "Bandnotched UWB planar monopole antenna with two parasitic patches," Electronics Letters, Vol. 41, No. 14, 783-785, July 7 2005.
doi:10.1049/el:20051090 Google Scholar

16. Nakamura, T. and H. Iwasaki, "Planar monopole antenna having a band-notched characteristic for UWB," Antennas and Propagation Society International Symposium 2006, 4641-4644, 2006.
doi:10.1109/APS.2006.1711673 Google Scholar

17. Kerkhoff, A. and H. Ling, "A parametric study of band-notched UWB planar monopole antennas," Antennas and Propagation Society International Symposium 2004, Vol. 2, 1768-1771, June 20-25 2004.
doi:10.1109/APS.2004.1330540 Google Scholar

18. Lin, Y.-C. and K.-J. Hung, "Compact ultra wideband rectangular aperture antenna and band-notched designs," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 11, 3075-3081, Nov. 2006.
doi:10.1109/TAP.2006.883982 Google Scholar

19. Ren, W., Z. G. Shi, and K. S. Chen, "Novel planar monopole UWB antenna with 5-GHz band-notched haracteristic," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 12, 1645-1652, 2007. Google Scholar

20. Jameses, J. R. and P. S. Hall, Handbook of Microstrip Antennas, 1989.

21. Jasik, H., Antenna Engineering Handbook, 2.10-2.13, McGraw-Hill, 1961.

22., Ansoft High Frequency Structure Simulation (Ansoft HFSSTM V 10.0), Ansoft Corporation, 2005.

Dr. Mahdi Naghshvarianjahromi