volume | PIER Journals

Abstract

In this paper, a method to broaden the beamwidths of a crossed dipole antenna is proposed. By introducing four parasitic strips around the crossed dipole antenna, the beamwidths of the crossed dipole antenna in the vertical plane are broadened effectively, making the patterns uniform over a wide frequency band. An L-band prototype, operating in the frequency range from 1.1 GHz to 1.6 GHz, is fabricated and tested. The simulated and measured results show that the beamwidths at lower frequencies are broadened and uniform radiation patterns over the whole operating frequency band are obtained, making the crossed dipole suitable for wideband marine GPS (Global Positioning System) applications.

1. Shumaker, P. K., C. H. Ho, and K. B. Smith, "Printed half-wavelength quadrifilar helix antenna for GPS marine applications," Electronics Letters, Vol. 32, No. 3, Feb. 1996.
doi:10.1049/el:19960129 Google Scholar

2. Florian, P. and D. Loffler W. Wiesbeck, "A broadband, ship based, electronically steered L-band SATCOM antenna," Antennas and Propagation Society International Symposium, Vol. 2, 456-459, Jun. 22-27, 2003.

3. Mall, L. and R. B. Waterhouse, "Simple, small antenna terminal for maritime satellite communications," Electronic Letters, Vol. 40, No. 11, 2004.
doi:10.1049/el:20040462 Google Scholar

4. Panahi, S. S., A. Manuel, and S. Ventosa, "Stability and power consumption tests for time base selection of an ocean bottom seismometer (OBS)," 49th IEEE International Midwest Symposium on Circuits and Systems, Vol. 2, 323-326, Aug. 2006.
doi:10.1109/MWSCAS.2006.382277 Google Scholar

5. Gaer, M. C., R. P. Gilbert, and Y. S. Xu, "Analytical methods for acoustic seabed exploration," Challenges of Our Changing Global Environment Conference Proceedings IEEE, Vol. 1, 214-220, Oct. 1995. Google Scholar

6. Kuga, Y., J. Cha, and J. A. Ritcey, "Mechanically steerable antennas using dielectric phase shifters," IEEE Antennas and Propagation Society International Symposium, Vol. 1, 161-164. Google Scholar

7. Geissler, M., F. Woetzel, M. Bottcher, S. Korthoff, A. Lauer, M. Eube, and R. Gieron, "Innovative phased array antenna for maritime satellite communications," 3rd European Conference on Antennas and Propagation, 735-739, Mar. 2009.

8. Milligan, T. A., Modern Antenna Design, 2nd Ed., John Wiley & Sons Inc., 2005.

9. Yin, W. Y. and L. W. Li, "Radiation patterns of a dipole antenna array on bianisotropic substrates with a soft- and hard-surface: The clari¯cation of the continuous magnetic group of symmetry," Journal of Electromagnetic Waves and Applications, Vol. 13, No. 9, 1173-1189, 1999.
doi:10.1163/156939399X01447 Google Scholar

10. 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

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. Shams, K. M. Z., M. Ali, and H. S. Hwang, "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

13. Anagnostou, D. E., G. Zheng, S. E. Barbin, M. T. Chryssomallis, J. Papapolymerou, and C. G. Christodoulou, "An X-band reconfigurable planar dipole antenna," IEEE MTT International Microwave and Optoelectronics Conf., 654-656.

14. Scire-Scappuzzo, F. and S. N. Makarov, "A low-multipath wideband GPS antenna with cutoff or non-cutoff corrugated ground plane," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 1, 33-46, Jan. 2009.
doi:10.1109/TAP.2008.2009655 Google Scholar

15. Lange, J., "Interdigitated stripline quadrature hybrid," IEEE Trans. Microw. Theory Tech., Vol. 17, No. 12, 1150-1151, Dec. 1969.
doi:10.1109/TMTT.1969.1127115 Google Scholar

16. Andrews, D. P. and C. S. Aitchison, "Wide-band lumped element quadrature 3-dB couplers in microstrip," IEEE Trans. Microw. Theory Tech., Vol. 48, No. 12, 2424-2431, Dec. 2000.
doi:10.1109/22.898993 Google Scholar

17. HFSS: High Frequency Structure Simulator V. 11 based on the Finite Element Method, Ansoft Corporation.

18. Eldek, A. A., "Design of double dipole antenna with enhanced usable bandwidth for wideband phased array applications," Progress In Electromagnetics Research, Vol. 59, 1-15, 2006.
doi:10.2528/PIER06012001 Google Scholar

19. Li, B., K.-J. Lee, H.-T. Chou, and W. Gu, "A polarization compensation approach utilizing a paraboloid photonic-crystal structure for crossed-dipole excited reflector antennas," Progress In Electromagnetics Research, Vol. 85, 393-408, 2008.
doi:10.2528/PIER08081703 Google Scholar

20. Joardar, S. and A. B. Bhattacharya, "Uniform gain power-spectrum antenna-pattern theorem and its possible applications," Progress In Electromagnetics Research, Vol. 77, 97-110, 2007.
doi:10.2528/PIER07080102 Google Scholar

21. Heidari, A. A., M. Heyrani, and . Nakhkash, "A dual-band circularly polarized stub loaded microstrip patch antenna for GPS applications," Progress In Electromagnetics Research, Vol. 92, 195-208, 2009.
doi:10.2528/PIER09032401 Google Scholar

Dr. Yun-Fei Wei

Dr. Bao-Hua Sun

Dr. Chao Shi

Dr. Shi-Gang Zhou

Dr. Wei-Ji Huang

Professor Qi-Zhong Liu