Compact Broadband Rat-Race Coupler in Multilayer Technology Designed with the Use of Artificial Right- and Left-Handed Transmission Lines

• Autorzy: Staszek K. , Kołodziej J. , Wilcza K. , Gruszczyński S.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a compact broadband rat-race coupler for the first time designed and realized in a mul- tilayer microstrip technology. To achieve both broad operational bandwidth and a compact size the 270? transmission line of a conventional rat-race, coupler has been replaced by a -90? left-handed transmission line realized with the use of a quasi-lumped element technique. Moreover, to achieve better compactness of the resulting coupler, all 90? right-handed transmission lines have been realized with the use of the same technique. It has been also proved that simple LC approximation of a left-handed transmission line can be successfully used for the design. Moreover, it has been shown that when appropriately chosen, the multilayer dielectric structure allows for realization of structures designed with the use of this simple approximation, for both right-handed and left-handed transmission lines, without loosing too much of a performance.

Słowa kluczowe

EN

broadband rat-race couplers; left-handed transmission lines; quasi-lumped elements

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2012
• Tom: nr 2
• Strony: 107--112
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Staszek K.

autor

Kołodziej J.

autor

Wilcza K.

autor

Gruszczyński S.

• Department of Electronics, AGH University of Science and Technology, Mickiewicza av. 30, 30-059 Kraków,

Bibliografia

• [1] R. W. Vogel, “Analysis and design of lumped- and lumped-distributed-element directional couplers for MIC and MMIC applications”, IEEE Trans. Microwave Theory Tech., vol. 40, pp. 253–262,1992.
• [2] T. Hirota, A. Minakawa, and M. Muraguchi, “Reduced-size branchline and rat-race hybrids for uniplanar MMIC’s”, IEEE Trans. Microwave Theory Tech., vol. 38, pp. 270–275, 1990.
• [3] Ch. Y. Chang, Ch. Ch. Yang, “A novel broad-band chebyshevresponse rat-race coupler”, IEEE Trans. Microwave Theory Tech., vol. 47, no. 4, pp. 455–462, 1999.
• [4] S. Gruszczynski, K. Wincza, “On the design of a broadband rat-race coupler in broadside line technique”, in Proc. 13th Conf. Microwave Technique COMITE 2005, Prague, Czech Republic, 2005.
• [5] S. March, “A wide-band stripline hybrid ring”, IEEE Trans. Microwave Theory Tech., vol. MTT-16, pp. 361–361, 1968.
• [6] J. L. B. Walker, “Improvements to the design of the 0-180° rat race coupler and its application to the design of balanced mixers with high LO to RF isolation”, in Proc. MTT-S Int. Microwave Symp. Digest, Denver, USA, 1997, vol. 2, pp. 747–750.
• [7] S. Rehnmark, “Wide-band balanced line microwave hybrids”, IEEE Trans. Microwave Theory Tech., vol. MTT-25, no. 10, pp. 825–830, 1977.
• [8] C. Caloz, T. Itoh, Electromagnetic metamaterials: Transmission Line Theory and Microwave Applications. New York: Wiley, 2006.
• [9] H. Okabe, C. Caloz, T. Itoh, “A compact enhanced bandwidth hybrid ring using and artificial lumped element left-handed transmission- line section”, IEEE Trans. Microwave Theory and Tech., vol. 52, no. 3, pp. 798–804, 2004.
• [10] G. Siso, M. Gil, J. Bonache, and F. Martin, “Applications of resonant-type metamaterial transmission lines to the design of enhanced bandwidth components with compact dimensions”, Microwave Opt. Technol. Lett., vol. 50, pp. 127–134, 2008.
• [11] G. Monti and L. Tarricone, “Compact broadband monolithic 3-dB coupler by using artificial transmission lines”, Microwave Opt. Technol. Lett., vol. 50, pp. 2662–2667, 2008.