volume | PIER Journals

Abstract

In the study, an ultra-wideband array antenna for multifunction phased array radars (MPAR) is proposed. Due to the low-profile and ultra-wideband characteristics, the planar dipole elements are utilized to form an array antenna. Their performances are enhanced by using an optimized microstrip-sector feeding structure. The array antenna is a combination of subarrays, each of which corresponds to 4 × 4 transmit/receive channels. Four subarrays are fabricated in a standard printed circuit board (PCB) process to investigate the planar dipole array antenna theoretically and experimentally. Both simulated and measured results show that the proposed array antenna achieves 87.0% impedance bandwidth (VSWR < 2.0 in the normal direction) from 1.3 GHz to 3.3 GHz, according to the specific requirements of an MPAR project. The active VSWR is less than 2.0 and 3.0 while the scan angle is -30˚~30˚ and -45˚~45˚, respectively. It means that this array antenna has wide-scan capability. In general, the balanced optimization between the electrical and mechanical performances makes the proposed array antenna attractive for MPARs and other compact systems.

1. Stailey, J. E. and K. D. Hondl, "Multifunction phased array radar for aircraft and weather surveillance," Proceedings of the IEEE, Vol. 104, No. 3, 649-659, 2016.
doi:10.1109/JPROC.2015.2491179 Google Scholar

2. Herd, J., S. Duffy, M. Weber, et al. "Advanced architecture for a low cost multifunction phased array radar," IEEE MTT-S Int. Microw. Symp., 676-679, Anaheim, USA, May 2010. Google Scholar

3. Herd, J., S. Duffy, D. Carlson, et al. "Low cost multifunction phased array radar concept," IEEE Int. Symp. on Phased Array Systems and Tech., 457-460, Waltham, USA, October 2010. Google Scholar

4. Kumar, G. and K. P. Ray, Broadband Microstrip Antennas, Artech House, 2003.

5. Chen, Z. N. and M. Y. W. Chia, "Center-fed microstrip patch antenna," IEEE Trans. on Antennas and Propag., Vol. 51, No. 3, 483-487, 2003.
doi:10.1109/TAP.2003.809826 Google Scholar

6. Koohestani, M. and M. Golpour, "U-shaped microstrip patch antenna with novel parasitic tuning stubs for ultra wideband applications," IET Microw. Antennas Propag., Vol. 4, No. 7, 938-946, 2010.
doi:10.1049/iet-map.2009.0049 Google Scholar

7. Donelli, M. and P. Febvre, "An inexpensive reconfigurable planar array for Wi-Fi applications," Progress In Electromagnetics Research C, Vol. 28, 71-81, 2012.
doi:10.2528/PIERC12012304 Google Scholar

8. Moriyama, T., M. Manekiya, and M. Donelli, "A compact switched-beam planar antenna array for wireless sensors operating at Wi-Fi band," Progress In Electromagnetics Research C, Vol. 83, 137-145, 2018. Google Scholar

9. Agrawall, N. P., G. Kumar, and K. P. Ray, "Wide-band planar monopole antennas," IEEE Trans. Antennas Propag., Vol. 46, No. 2, 294-295, 1998.
doi:10.1109/8.660976 Google Scholar

10. Ammann, M. J. and Z. N. Chen, "Wideband monopole antennas for multi-band wireless systems," IEEE Antennas Propag. Mag., Vol. 45, No. 2, 146-150, 2003.
doi:10.1109/MAP.2003.1203133 Google Scholar

11. Robol, F. and M. Donelli, "Circularly polarized monopole hook antenna for ISM-band systems," Microw. and Optical Tech. Lett., Vol. 60, No. 6, 1452-1454, 2018.
doi:10.1002/mop.31179 Google Scholar

12. Schantz, H. G., "Planar elliptical element ultra-wideband dipole antennas," IEEE Antennas Propag. Society Int. Symp., 44-47, Boston, USA, June 2002. Google Scholar

13. Schantz, H. G., "Bottom fed planar elliptical UWB antennas," IEEE Ultra Wideband Syst. Tech. Conf., 219-223, Virginia, USA, November 2003. Google Scholar

14. Zhang, J. P., Y. S. Xu, and W. D. Wang, "Ultra-wideband microstrip-fed planar elliptical dipole antenna," Electron. Lett., Vol. 42, No. 2, 144-145, 2006.
doi:10.1049/el:20064073 Google Scholar

15. Li, B., J. P. Zhang, Y. Deng, et al. "Design of a low-profile ultra-wideband antenna array based on planar dipole elements," 2018 IEEE Radar Conference, 385-388, Oklahoma, USA, April 2018. Google Scholar

16. Zhang, G. Y. and Y. J. Zhao, Technologies of Phased Array Radar, Publishing House of Electronics Industry, 2006.

17. Stockbroeckx, B. and A. V. Vorst, "Copolar and cross-polar radiation of Vivaldi antenna on dielectric substrate," IEEE Trans. on Antennas and Propag., Vol. 48, No. 1, 19-24, 2000.
doi:10.1109/8.827381 Google Scholar

18. Lyon, R. W., A. M. Kinghorn, G. D. Morrison, et al. "Active electronically scanned tiled array antenna," IEEE Int. Symp. on Phased Array Systems and Tech., 160-165, Boston, USA, October 2013. Google Scholar

19. HFSS Introduction, , , http://www.ansys.com/products/electronics/ansys-hfss, accessed 1 January 2019.

20. Dhatt, G., G. Touzot, and E. Lefrancois, Finite Element Method, John Wiley & Sons, 2012.
doi:10.1002/9781118569764

21. Gross, F. B., Frontiers in Antennas: Next Generation Design and Engineering, McGraw-Hill, 2011.

Dr. Bin Li

Dr. Zhipeng Zhou

Dr. Lei Sun