A hemisphere dielectric resonator pattern reconfigurable antenna (DRA) is proposed in this paper. The proposed antenna element can operate in four states (SI~SIV) and correspondingly reconfigures its patterns in four directions. A thinning linear array by non-uniform spacing with the element is constructed to scan its main beam from θ=-77o to 77o in E-plane with 3-dB beam coverage from θ=-90o to 90o by changing two states and progressive phases.
2. Fallahi, R. and M. Roshandel, "Effect of mutual coupling and configuration of concentric circular array antenna on the signal-to-interference performance in CDMA systems," Progress In Electromagnetics Research, Vol. 76, 427-447, 2007.
doi:10.2528/PIER07070104
3. Staraj, R., E. Cambiaggio, and A. Papiernik, "Infinite phased arrays of microstrip antennas with parasitic elements: Application to bandwidth enhancement," IEEE Trans. on Antennas and Propagation, Vol. 42, No. 5, 742-746, 1994.
doi:10.1109/8.299576
4. Skrivervic, A. K. and J. R. Mosig, "Finite phased array of microstrip patch antennas: The infinite array approach," IEEE Trans. on Antennas and Propagation, Vol. 40, No. 5, 579-582, 1992.
doi:10.1109/8.142636
5. Javier, G. T., F. W. Parveen, T. C. Michael, and G. C. Christos, "FDTD analysis of finite-sized phased array microstrip antennas," IEEE Trans. on Antennas and Propagation, Vol. 51, No. 8, 2057-2062, 2003.
doi:10.1109/TAP.2003.813640
6. Yang, X.-S. and B.-Z. Wang, "Yagi patch antenna with dual-band and pattern reconfigurable characteristics," IEEE Antenna and Wireless Propagation Letters, Vol. 6, 168-171, 2007.
doi:10.1109/LAWP.2007.895292
7. Zhang, S., et al., "A pattern reconfigurable microstrip parasitic array," IEEE Trans. on Antennas and Propagation, Vol. 52, No. 10, 2773-2776, 2004.
doi:10.1109/TAP.2004.834372
8. Wu, S.-J. and T.-G. Ma, "A wideband slotted bow-tie antenna with reconfigurable CPW-to-slotline transition for pattern diversity," IEEE Trans. on Antennas and Propagation, Vol. 56, No. 2, 327-334, 2008.
doi:10.1109/TAP.2007.915454
9. Saed, M. and R. Yadla, "Microstrip-fee low profile and compact dielectric resonator antenna," Progress In Electromagnetics Research, Vol. 56, 151-161, 2006.
doi:10.2528/PIER05041401
10. Rezaei, P., M. Hakkak, and K. Forooraghi, "Design of wideband dielectric resonator antenna with a two-segment structure," Progress In Electromagnetics Research, Vol. 66, 111-124, 2006.
doi:10.2528/PIER06110701
11. Kumar, A. V. P., V. Hamsakutty, J. Yoyannan, and K. T. Mathew, "Micro-strip fed cylindrical dielectric resonator antenna with a coplanar parasitic strip," Progress In Electromagnetics Research, Vol. 60, 143-152, 2006.
doi:10.2528/PIER05121301
12. Mongia, R. K., A. Ittipibon, and M. Cuhaci, "Measurement of radiation efficiency of dielectric resonator antennas," IEEE Microwave Guided Wave. Lett., Vol. 4, 80-82, 1994.
doi:10.1109/75.275587
13. Kishk, A. A., "Wideband dielectric resonator antenna in truncated tetrahedron from excited by a coaxial probe," IEEE Trans. on Antennas and Propagation, Vol. 51, No. 10, 2913-2917, 2003.
doi:10.1109/TAP.2003.816300
14. Kishk, A. A., et al., "Conical dielectric resonator antennas for wideband application," IEEE Trans. on Antennas and Propagation, Vol. 50, No. 4, 469-474, 2002.
doi:10.1109/TAP.2002.1003382
15. Zhang, Y. and B. Zhu, "Study of optimum thinning arrays by non-uniform spacing," ACTA ELECTRONICA SINICA, Vol. 17, No. 4, 81-87, 1989.
16. Haupt, R. L., "Thinned arrays using genetic algorithms," IEEE Trans. on Antennas and Propagation, Vol. 42, No. 7, 993-999, 1994.
doi:10.1109/8.299602
17. Razavi, A. and K. Forooraghi, "Thinned arrays using pattern search algorithms," Progress In Electromagnetics Research, Vol. 78, 61-71, 2008.
doi:10.2528/PIER07081501
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