volume | PIER Journals

Abstract

A miniature platform tolerant antenna is presented which is suitable for low frequency applications. A Split Ring Resonator (SRR) antenna loaded with lumped capacitances is proposed. The antenna is compact, low profile and easy to fabricate. It has a maximum dimension of λ/9 and -10 dB bandwidth of 1%. Miniaturized artificial magnetic conductor surfaces (AMCs) are designed using capacitance loaded metal patches with individual elements measuring just λ/70. Placing the SRR above the AMC improves the bandwidth to between 1.5 and 3.5% dependent on the overall size of the AMC and produces a platform tolerant antenna measuring 0.11λ×0.17λ×0.019λ. The performance of the antenna over an AMC with and without vias is studied and discussed. The AMC mounted antenna's performance in free space and over a ground plane is also compared.

1. Chu, L. J., "Physical limitations of omni-directional antennas," J. Appl. Phys., Vol. 19, 1163-1175, Dec. 1948. Google Scholar

2. Harrington, R. F., "Effect of antenna size on gain, bandwidth, and efficiency," J. Res. National Bureau Standards --- D. Radio Propagation, Vol. 64D, No. 1, Jan. 1960. Google Scholar

3. McLean, J. S., "A re-examination of the fundamental limits on the radiation Q of electrically small antennas," IEEE Transactions on Antennas and Propagation, Vol. 44, No. 5, 672-676, May 1996. Google Scholar

4. Psychoudakis, D., J. L. Volakis, Z. N. Wing, S. K. Pillai, and J. W. Halloran, "Enhancing UHF antenna functionality through dielectric inclusions and texturization," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 2, 317-329, Feb. 2006. Google Scholar

5. Lee, M., B. A. Kramer, C. Chen, and J. L. Volakis, "Distributed lumped loads and lossy transmission line model for wideband spiral antenna miniaturization and characterization," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 10, 2671-2678, Oct. 2007. Google Scholar

6. Chi, P., R.Waterhouse, and T. Itoh, "Antenna miniaturization using slow wave enhancement factor from loaded transmission line," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 1, 48-57, Jan. 2011. Google Scholar

7. Azadegan, R. and K. Sarabandi, "Bandwidth enhancement of miniaturized slot antennas using folded, complementary, and self-complementary realizations," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 9, 2435-2444, Sep. 2007. Google Scholar

8. Erentok, A. and R. Ziolkowski, "Metamaterial-inspired efficient electrically small antennas," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 3, 691-707, Mar. 2008. Google Scholar

9. Jin, P. and R. Ziolkowski, "Broadband, efficient, electrically small metamaterial-inspired antennas facilitated by active near-field resonant parasitic elements," IEEE Transactions on Antennas and Propagation, Vol. 58, No. 2, 318-327, Feb. 2010. Google Scholar

10. Ziolkowski, R., "Efficient electrically small antenna facilitated by a near-field resonant parasitic," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 581-584, 2008. Google Scholar

11. Bilotti, F., A. Alu, and L. Vegni, "Design of miniaturized metamaterial patch antennas with μ-negative loading," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 6, 1640-1647, Jun. 2008. Google Scholar

12. Qureshi, F., M. Antoniades, and G. V. Eleftheriades, "A compact and low-profile metamaterial ring antenna with vertical polarization," IEEE Antennas and Wireless Propagation Letters, Vol. 4, 333-336, 2005. Google Scholar

13. Liu, Q., P. S. Hall, and A. L. Borja, "Efficiency of electrically small dipole antennas loaded with left-handed transmission lines," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 10, 3009-3017, Oct. 2009. Google Scholar

14. Lai, A. and T. Itoh, "Composite right/left-handed transmission line metamaterials," IEEE Microwave Magazine, 34-50, Sep. 2004. Google Scholar

15. Caloz, C., T. Itoh, and A. Rennings, "CRLH metamaterial leaky-wave and resonant antennas," IEEE Antennas and Propagation Magazine, Vol. 50, No. 5, 25-38, Oct. 2008. Google Scholar

16. Sievenpiper, D., L. Zhang, R. F. Jimenez Broas, N. G. Alexopolous, and E. Yablonovitch, "High-impedance electromagnetic surfaces with a forbidden frequency band," IEEE Transactions on Microwave Theory and Techniques, Vol. 47, No. 11, 2059-2074, Nov. 1999. Google Scholar

17. Folayan, O. and R. J. Langley, "Wideband reduced size electromagnetic bandgap structure," IET Electronics Letters, Vol. 41, 1099-1100, Sep. 2005. Google Scholar

18. Foroozesh, A. and L. Shafai, "Investigation into the application of AMCs to bandwidth broadening, gain enhancement and beam shaping of low profile and conventional monopole antennas," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 1, 4-20, Jan. 2011. Google Scholar

19. Cook, B. S. and A. Shamim, "Utilizing wideband AMC structures for high-gain inkjet-printed antennas on lossy paper substrate," EEE Antennas and Wireless Propagation Letters, Vol. 12, 76-79, 2013. Google Scholar

20. Liu, H., K. L. Ford, and R. J. Langley, "Miniaturised artificial magnetic conductor design using lumped reactive components," IET Electronics Letters, Vol. 45, No. 6, 294-295, 2009. Google Scholar

21. Liu, H., K. L. Ford, and R. J. Langley, "Design methodology for a miniaturized frequency selective surface using lumped reactive components," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 9, 2732-2738, Sep. 2009. Google Scholar

22. Pendry, J. B., A. J. Holden, D. J. Robbins, and W. J. Stewart, "Magnetism from conductors and enhanced nonlinear phenomena," IEEE Transactions on Microwave Theory and Technology, Vol. 47, No. 11, 2075-2084, Nov. 1999. Google Scholar

23. Bilotti, F., A. Toscano, and L. Vegni, "Design of spiral and multiple SRRs for the realization of miniaturized metamaterial samples," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 8, 2258-2267, Aug. 2007. Google Scholar

24. Martin, F., J. Bonache, F. Falcone, M. Sorolla, and R. Marques, "Split-ring resonator-based left-handed coplanar waveguide," Applied Physics Letters, Vol. 83, No. 22, Dec. 1, 2003. Google Scholar

25. Costa, F., O. Luukkonen, C. R. Simovski, A. Monorchio, S. A. Tretyakov, and P. M. de Maagt, "TE surface wave resonances on high impedance surface based antennas: Analysis and modeling," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 10, 3588-3596, Oct. 2011. Google Scholar

26. Zhu, N. and R. Ziolkowski, "Active metamaterial-inspired broad-bandwidth, efficient, electrically small antennas," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 1582-1585, 2011. Google Scholar

27. Ziolkowski, R., P. Jin, J. A. Nielsen, M. H. Tanielian, and C. L. Holloway, "Experimental verification of Z antennas at UHF frequencies," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 1329-1333, 2009. Google Scholar

28. Zhu, N. and R. Ziolkowski, "Design and measurements of an electrically small, broad bandwidth, non-Foster circuit-augmented protractor antenna," Applied Physics Letters, Vol. 101, No. 2, 24107-24110, Jul. 2012. Google Scholar

29. Jin, P. and R. Ziolkowski, "Low-Q, electrically small, e±cient near-field resonant parasitic antennas," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 9, 2548-2563, Sep. 2009. Google Scholar

30. Vasundara, V. V., H. Wang, I. K. Kim, and S. Weiss, "SRR-loaded small dipole antenna with electromagnetic bandgap ground plane," IEEE International Symposium on Antennas and Propagation 2011, 1040-1043, Jul. 2011. Google Scholar

31. Best, S. R., "The radiation properties of electrically small folded helix antennas," IEEE Transactions on Antennas and Propagation, Vol. 52, No. 4, 953-960, Apr. 2004. Google Scholar

32. Johnston, R. H. and J. G. McRory, "An improved small antenna radiation-efficiency measurement method," IEEE Antenna and Propagation Magazine, Vol. 40, No. 5, 40-48, Oct. 1998. Google Scholar

Dr. Shaozhen Zhu

Dr. Daniel Graham

Dr. Kenneth Lee Ford

Dr. Alan Tennant

Dr. Richard J. Langley