Browse > Article
http://dx.doi.org/10.5916/jkosme.2013.37.1.105

An ultra-compact Wilkinson power divider MMIC with an improved isolation characteristic employing RCR design method  

Yun, Young (한국해양대학교 전파공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.1, 2013 , pp. 105-113 More about this Journal
Abstract
In this work, using a ${\pi}$-type multiple coupled microstrip line structure (MCMLS) and RCR (Resistor Capacitor Resistor) structure, we fabricated ultra-compact and high isolation Wilkinson power divider on GaAs MMIC (Monolithic Microwave Integrated Circuit). The line length of the Wilkinson power divider was reduced to about ${\lambda}$/46, and its size was 0.304 [$mm^2$], which is 12.1 % of conventional one. Compared with conventional Wilkinson power divider, isolation characteristic of the proposed Wilkinson power divider was highly improved by using RCR insertion method. The proposed Wilkinson power divider showed good RF performances in C/X band.
Keywords
RCR insertion method; Wilkinson power divider; MMIC (Monolithic Microwave Integrated Circuit);
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. K. Mandal and S. Sanyal, "Reduced-length Rat-Race couplers", IEEE Transactions Microwave Theory and Techniques, vol. 55, no. 12, pp. 2593-2598, 2007.   DOI   ScienceOn
2 B. Liu, W., Hong, Y. Zhang, H. J. Tang, X. Yin, and K. Wu, "Half mode substrate integrated waveguide $180^{\circ}$ 3-dB directional couplers", IEEE Transactions Microwave Theory and Techniques, vol. 55, no. 12, pp. 2586-2592, 2007.   DOI   ScienceOn
3 L. K. Yeung and Y. E. Wang, "A novel $180^{\circ}$ hybrid using broadside-coupled asymmetric coplanar striplines", IEEE Transactions Microwave Theory and Techniques, vol. 55, no. 12, pp. 2625-2630, 2007.   DOI   ScienceOn
4 T. Hirota, A. Minakawa, and M. Muraguchi, "Reduced-size branch-line and rat-race hybrids for uniplanar MMIC's", Transactions Microwave Theory and Techniques, vol. 38, no. 3, pp. 270-275, 1991.
5 S. H. Kim, Y. B. Park, H. N. Joh, Y. Yun, K. H. Park, and K. H. Ahn "Miniaturized RF components employing multiple coupled microstrip line structure", Proceeding of The 26th International Technical Conference on Circuits / Systems, Computers and Communications (ITC-CSCC), pp. 889-892, 2008.
6 T. Fujii, I. Ohta, T. Kawai, and Y. Kokubo, "Miniaturized broad-band CPW 3-dB branch-line couplers in slow-wave structure", IEICE Transactions on Electronics, vol. E90-C, no. 12, pp. 2245-2253, 2007.   DOI
7 Y. Yun, "A highly miniaturized multiple coupled line power divider employing R-C-R isolation compensation circuit on MMIC", Microwave Journal, vol. 55, no. 3, pp. 112-120, 2012.
8 R. E. Collin, Foundation of Microwave Engineering, 2nd edition, McGraw-Hill, 1992.
9 I. Bahl, and P. Bhartia, "Impedance-matching networks", Microwave Solid State Circuit Design, Chapter 4, New York, John Wiley & Sons, 1988.