[1] D. Parker, D. C. Zimmermann, “Phased Arrays—Part II: Implementations, Applications, and Future Trends,” IEEE Transation on Microwave Theory and Techniques, vol. 50, no. 3, March 2002.
[2] Shiban K. Koul, Bharathi, “Microwave and Millimeter Wave Phase Shifters: Dielectric and Ferrite Phase Shifters,” vol. I. Boston, MA: Artech House, 1991.
[3] M. A. Y. Abdalla, “Metamaterial-Inspired CMOS Tunable Microwave Integrated Circuits for Steerable Antenna Arrays,” [Ph.D. Dissertation], Dept. ECE, University of Toronto, 2009.
[4] P. He, P. V. Parimi, Y. He, V. G. Harris, and C. Vittoria, “Tunable negative refractive index metamaterial phase shifter,” Electronics Leters 6th December 2007, vol. 43, no. 25, 2007.
[5] Peng He, P. V. Parimi, H. Mosallaei, V. G. Harris, and C. Vittoria, “Tunable Negative Refractive Index Metamaterial Phase Shifter,” IEEE Antennas and Propagation Society International Symposium, 2007.
[6] Peng He, Jinsheng Gao, P. V. Parimi, C. Vittoria, and V. G. Harris,” Tunable Negative Refractive Index Metamaterials and Applications at X and Q-bands,” U. S. Army Research Office, 4300 S. Miami Blvd, Durham NC 27703.
[7] Hossam S. Tork, “Tunable ferroelectric meta-material phase shifter embedded inside low temperature co-fired ceramics (LTCC),” Ph.D. Dissertation, Dept. ECE, University of Idaho, December 2012.
[8] M. Maassel, “A metamaterial-based multiband phase shifter”, Ph.D. Dissertation, Dept. ECE, North Dakota State.
[9] N. Engheta and R. W. Ziolkowski, “Metamaterials, Physics and Engineering Explorations,” Piscataway, NJ: IEEE Press, Wiley Interscience, 2006.
[10] M. A. Antoniades and G. V. Eleftheriades, "Compact linear lead/lag metamaterial phase shifters for broadband applications,” in IEEE Antennas and Wireless Propagation Letters, vol. 2, pp. 103-106, 2003.
[11] M. Maassel, “A metamaterial-based multiband phase shifter,” [Ph.D. Dissertation], Dept. ECE, North Dakota State University of Agriculture and Applied Science, Fargo, October 2013.
[12] R. E. Collin, “Foundation for Microwave Engineering,” 2nd ed. Cleveland, OH: IEEE Press, Wiley, 2001.
[13] D. M. Pozar, “Microwave Engineering,” 4th ed. Hoboken, NJ: Wiley, 2012.
[14] Peng He, “Tunable Ferrite-Based Negative Index Metamaterials for Microwave Device Applications,” [Ph.D. Dissertation], Electrical Engineering, Northeastern University Boston, Massachusetts, December 2009.
[15] Xudong Chen, Tomasz M. Grzegorczyk, Bae-Ian Wu, Joe Pacheco, Jr., and Jin Au Kong, “Robust method to retrieve the constitutive effective parameters of metamaterials,” Phys. Rev. E, vol. 70, no. 1, pp. 016608-016614 , July 2004.
[16] Magnus W. Haakestad and Johannes Skaar, “Causality and Kramers-Kronig relations for waveguides,” Optical Society of America, vol. 13, no. 24, 28 November 2005.
[17] Hakki Ilhan Altan, “X-Band high power ferrite phase shifter,” [M.S.C Thesis]. Dept. IEEE, Middle East Technical University, 2010.
[18] Guillermo Gonzalez, “Microwave Transistor Amplifiers: Analysis and Design,” Pearson, 2 edition, August 1996.
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