| PIER | |
| Progress In Electromagnetics Research | ISSN: 1070-4698, E-ISSN: 1559-8985 |
Home > Vol. 124 > pp. 55-70
A NOVEL WIDEBAND ANTENNA ARRAY WITH TIGHTLY COUPLED OCTAGONAL RING ELEMENTSBy Y. Chen, S. Yang, and Z.-P. NieAbstract: A novel phased array antenna with wide bandwidth and wide scan angle is presented. The radiating aperture of the phased array consists of periodically and closely spaced octagonal ring elements. Tight capacitive coupling between adjacent elements is realized by interdigitating the end portions of the ring elements. To improve the impedance matching of the individual antenna elements over wide frequency band, a novel impedance matching layer consists of periodic octagonal ring element is subtly designed and placed over the radiating aperture. Both of the radiating elements and impedance matching layer are printed on a flexible membrane substrate with a thickness of 0.04 mm. Measured results of a 16-element linear array demonstrate that good impedance matching over a 4.4:1 bandwidth can be obtained for beam scan angles within ±45° from broadside. As compared to conventional wideband phased array such as tapered slot antenna array, the proposed phased array has the features such as low cost, low profile, light weight, and ease of fabrication.
Citation:
References:
2. Xu, Z., Y. Yuan, X. Q. Yan, Z. H. Feng, and Q. Z. Liu, "Scan blindness of tapered-slot array optimized with tapered-aerosubstrate in the triangular elements grids," Journal of Electromagnetic Waves and Applications, Vol. 25, No. 8-9, 1329-1339, 2011. 3. Hansen, R. C., Phased Array Antennas, John Wiley & Sons, Inc., New York, 1998. 4. Liao, W.-J., S.-H. Chang, and W.-H. Lee, "Beam scanning array using spatial diversity," Journal of Electromagnetic Waves and Applications, Vol. 25, No. 4, 481-494, 2011. 5. Mailloux, R. J., Phased Array Antenna Handbook, Artech House Inc., Norwood, 2005.
6. Holter, H., T. H. Chio, and D. H. Schaubert, "Experimental results of 144-element dual-polarized endfire tapered-slot phased arrays," IEEE Trans. Antennas Propagat., Vol. 48, No. 11, 1707-1718, 2000. 7. Munk, B. A., et al., "A low-profile broadband phased array antenna," Proc. Antennas Propagation Soc. Int. Symp., 448-451, 2003.
8. Oikonomou, A., I. S. Karanasiou, and N. K. Uzunoglu, "Phased-array near field radiometry for brain intracranial applications," Progress In Electromagnetics Research, Vol. 109, 345-360, 2010. 9. Eldek, A. A., A. Z. Elsherbeni, and C. E. Smith, "Rectangular slot antenna with patch stub for ultra wideband applications and phased array systems," Progress In Electromagnetics Research, Vol. 53, 227-237, 2005. 10. 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. 11. Lewis, L. R., M. Fasset, and J. Hunt, "A broadband stripline array element," IEEE Symp. Antennas and Propagation Dig., 335-337, Atlanta, GA, 1974.
12. Zhou, B., H. Li, X. Zou, T.-J. Cui, and , "Broadband and high-gain planar vivaldi antennas based on inhomogeneous anisotropic zero-index metamaterials," Progress In Electromagnetics Research, Vol. 120, 235-247, 2011.
13. Yang, Y., Y. Wang, and A. E. Fathy, "Design of compact Vivaldi antenna arrays for UWB see through wall applications," Progress In Electromagnetics Research, Vol. 82, 401-418, 2008. 14. Shin, J. and D. H. Schaubert, "A parameter study of stripline-fed Vivaldi notch-antenna arrays," IEEE Trans. Antennas Propagat., Vol. 47, No. 5, 879-886, 1999. 15. Lee, J. J., S. Livingston, and R. Koenig, "A low-profile wide-band (5 : 1) dual-pol array," IEEE Antennas Wireless Propag. Lett., Vol. 2, 46-49, 2003.. 16. Li, X., Y.-J. Yang, X. Tao, L. Yang, S.-X. Gong, Y. Gao, K. Ma, and X.-L. Liu, "A novel design of wideband circular polarization antenna array with high gain characteristic," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 7, 951-958, 2010. 17. Wong, K., Compact and Broadband Microstrip Antennas, John Wiley & Sons, Inc., New York, 2002. 18. Chen, Y., S. Yang, and Z. Nie, "Bandwidth enhancement method for low profile E-shaped microstrip patch antennas," IEEE Trans. Antennas Propagat., Vol. 58, No. 7, 2442-2447, 2010. 19. Schaubert, D. H., "A class of E-plane scan blindnesses in single-polarized arrays of tapered-slot antennas with a ground plane," IEEE Trans. Antennas Propagat., Vol. 44, No. 7, 954-959, 1996. 20. Munk, B. A., Finite Antenna Arrays and FSS, Wiley, New York, 2003. 21. Hansen, R. C., "Current induced on a wire: Implications for connected arrays," IEEE Antennas Wireless Propag. Lett., 288-289, 2003. 22. Hansen, R. C., "Linear connected arrays," IEEE Antennas Wireless Propag. Lett., 154-156, 2004. 23. Georgia Technology Research Corporation, , [Online]. Available: http://www.gtri.gatech.edu/casestudy/100-1-bandwidth.
24. Lee, J. J., S. Livingston, and R. Koenig, "Wide band long slot array antennas," Proc. Antennas Propagation Soc. Int. Symp., 452-455, Columbus, OH, 2003.
25. Neto, A. and J. J. Lee, "Infinite bandwidth long slot array antenna," IEEE Antennas Wireless Propag. Lett., Vol. 4, 75-78, 2005. 26. Neto, A. and J. J. Lee, "Ultrawide-band properties of long slot arrays," IEEE Trans. Antennas Propagat., Vol. 54, No. 2, 534-543, 2006. 27. Wheeler, H. A., "Simple relations derived from a phased array antenna made of an infinite current sheet," IEEE Trans. Antennas Propagat., Vol. 13, No. 4, 506-514, 1965. 28. Lee, J. J., S. Livingston, R. Koenig, D. Nagata, and L. L. Lai, "Compact light weight UHF arrays using long slot apertures," IEEE Trans. Antennas Propagat., Vol. 54, No. 7, 2009-2015, 2006. 29. Zhang, Y. and K. B. Anthony, "Octagonal ring antenna for a compact dual-polarized aperture array," IEEE Trans. Antennas Propagat., Vol. 59, No. 10, 3927-3932, 2011. 30. Ansoft Corporation HFSS, , [Online]. Available: http://www.ansoft.com /products/hf/hfss/. 31. Zhang, H., X.-W. Shi, F. Wei, and L. Xu, "Compact wideband GYSEL power divider with arbitrary power division based on patch type structure," Progress In Electromagnetics Research, Vol. 119, 395-406, 2011. 32. Lin, Z. and Q.-X. Chu, "A novel approach to the design of dual-band power divider with variable power dividing ratio based on coupled-lines," Progress In Electromagnetics Research, Vol. 103, 271-284, 2010. 33. Wu, Y., Y. Liu, S. Li, C. Yu, and X. Liu, "Closed-form design method of an N-way dual-band wilkinson hybrid power divider," Progress In Electromagnetics Research, Vol. 101, 97-114, 2010. 34. Al-Zayed, A. S. and S. F. Mahmoud, "Seven ports power divider with various power division ratios," Progress In Electromagnetics Research, Vol. 114, 383-393, 2011.
35. Nearfield Systems Inc., , [Online]. Available: http://www.near¯eld.com.
36. Cavallo, D., A. Neto, and G. Gerini, "PCB slot based transformers to avoid common-mode resonances in connected arrays of dipoles," IEEE Trans. Antennas Propagat., Vol. 58, No. 8, 2767-2771, 2010. |