volume | PIER Journals

Abstract

A tunable electromagnetic-bangap (EBG) structure based on a double layer slotline using plasma is proposed. The plasma permittivity can be tuned by the electron density. The idea of integrating periodical plasma elements inside the slot to tune the stopband is investigated. An electron density and an electron collision frequency equal to 1.75 10¹³ cm^-3 and 10¹⁰ s^-1 respectively, are the plasma parameters selected in this study. The simulations reveal a shift rate of the second stopband equal to 6%. A new configuration of the structure is also proposed to adapt it better to the experimental requirements. Based on the simulation results, adding the plasma elements to the modified configuration shifts the stopband 4% and reduces its bandwidth by 43% (at -20 dB).

1. Notomi, M., "Theory of light propagation in strongly modulated photonic crystals: Refractionlike behaviour in the vicinity of the photonic band gap," Physical Review B, Vol. 62, 10696-10705, 2000.
doi:10.1103/PhysRevB.62.10696 Google Scholar

2. De Lustrac, A., F. Gadot, E. Akmansoy, and T. Brillat, "High-directivity planar antenna using controllable photonic bandgap material at microwave frequencies," Applied Physics Letters, Vol. 78, 4196-4198, 2001.
doi:10.1063/1.1382853 Google Scholar

3. De Lustrac, A., F. Gadot, S. Cabaret, J. M. Lourtioz, A. Priou, E. Akmansoy, and T. Brillat, "Experimental demonstration of electrically controllable photonic crystals at centimeter wavelengths," Applied Physics Letters, Vol. 75, 1625-1627, 1999.
doi:10.1063/1.124775 Google Scholar

4. Karim, M. F., A. Q. Liu, A. B. Yu, and A. Alphones, "MEMS-based tunable bandstop filter using electromagnetic bandgap (EBG) structures," APMC 2005, Asia-Paci¯c Microwave Conference Proceedings, Vol. 3, 4-7, Dec. 2005. Google Scholar

5. Poilasne, G., P. Pouliguen, K. Mahdjoubi, L. Desclos, and C. Terret, "Active metallic photonic band-gap materials (MPBG): Experimental results on beam shaper," IEEE Transactions on Antennas and Propagation, Vol. 48, No. 1, 117-119, 2000.
doi:10.1109/8.827392 Google Scholar

6. John, S. and K. Busch, "Liquid-crystal photonic-band-gap materials: The tunable electromagnetic vacuum," Physical Review Letters, Vol. 83, No. 5, 967-970, 1999.
doi:10.1103/PhysRevLett.83.967 Google Scholar

7. Yun, T.-Y. and K. Chang, "An electronically tunable photonic bandgap resonator controlled by piezoelectric transducer," IEEE MTT-S International Microwave Symposium Digest, Vol. 3, 1445-1447, Jun. 2000. Google Scholar

8. Kuylenstierna, D., A. Vorobiev, G. Subramanyam, and S. Gevorgian, "Tunable electromagnetic bandgap structures based on ferroelectric films," IEEE Antennas and Propagation Society International Symposium, Vol. 4, 879-882, 2003. Google Scholar

9. Sakai, O., T. Sakaguchi, and K. Tachibana, "Plasma photonic crystals in two-dimensional arrays f microplasmas," Contrib. Plasma Phys., Vol. 47, 96, 2007.
doi:10.1002/ctpp.200710014 Google Scholar

10. Giroud, L., J. Sokoloff, and O. Pigaglio, "Reconfigurable EBG at 18 GHz using perimeter defects," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 8-9, 1029-1037, 2009. Google Scholar

11. Lo, J., J. Sokoloff, T. Callegari, and J. P. Boeuf, "Reconfigurable electromagnetic band gap device sing plasma as a localized tunable defect," Applied Physics Letters, Vol. 96, No. 25, 251501, 2010.
doi:10.1063/1.3454778 Google Scholar

12. Varault, S., B. Gabard, J. Sokoloff, and S. Bolioli, "Plasma-based localized defect for switchable coupling applications," Applied Physics Letters, Vol. 98, No. 13, 134103, 2011.
doi:10.1063/1.3559605 Google Scholar

13. Varault, S., B. Gabard, T. Crepin, J. Sokoloff, and S. Bolioli, "Reconfigurable modified surface layers using plasma capillaries around the neutral inclusion regime," J. Appl. Phys., Vol. 115, 084906, 2014.
doi:10.1063/1.4866816 Google Scholar

14. Boisbouvier, N., A. Louzir, F. Le Bolzer, A. C. Tarot, and K. Mahdjoubi, "A double layer EBG structure for slot-line printed devices," IEEE Antenna and Propagation Society International Symposium, Vol. 4, 3553-3556, 2004. Google Scholar

15., Ansoft Corporation, Online Available: http://www.ansoft.com. Google Scholar

16. Quendo, C., E. Rius, C. Person, and M. Ney, "Integration of optimized low-pass filters in a bandpass filter for out-of-band improvement," IEEE Transactions on Microwave Theory and Techniques, Vol. 49, No. 12, 2376-2383, 2001.
doi:10.1109/22.971624 Google Scholar

17. Tu, W.-H. and K. Chang, "Wide-band microstrip-to-coplanar stripline/slotline transitions," IEEE Transactions on Microwave Theory and Techniques, Vol. 54, No. 3, 1084-1089, 2006.
doi:10.1109/TMTT.2005.864127 Google Scholar

Mrs. Asma Kallel

Dr. Jérôme Sokoloff

Mr. Thierry Callegari

Dr. Olivier Pigaglio