Miniaturized Wilkinson Power Divider with nth Harmonic Suppression using Front Coupled Tapered CMRC
Keywords:
Front coupled tapered compact microstrip resonant cell, harmonic suppression, miniaturization, Wilkinson power dividerAbstract
In this paper, a novel microstrip power divider with a new technique for nth harmonic suppression is presented. This technique is based on using front coupled tapered compact microstrip resonant cell (FCTCMRC) that inserted into a quarter-wavelength transmission line of the conventional Wilkinson power divider. This cell is used to obtain high harmonic suppression. The proposed power divider not only impressively improves harmonic suppression, but also reduces the length of a quarter-wave line over 29.3 % as compared with the conventional power divider. From the measured results, the proposed structure achieved ultra wide stop-band bandwidth (6 GHz – 12 GHz) with a minimum attenuation level of 24 dB, while maintaining the characteristics of the conventional Wilkinson power divider. The input and output return losses at 2 GHz are 48 and 44 dB, respectively. The insertion loss is about 3.1 dB and better than 45 dB isolation is obtained.
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References
E. J. Wilkinson, “An N-way power divider,” IEEE Trans. Microwave Theory Tech., vol. 8, pp. 116- 118, 1960.
D. M. Pozar, Microwave Engineering, Wiley, New York, 2005.
C. M. Lin, H. H. Su, J. C. Chiu, and Y. H. Wang, “Wilkinson power divider using microstrip EBG cells for the suppression of harmonics,” IEEE Microwave Wireless Components Letters, vol. 17, pp. 700-702, 2007.
J. Wang, J. Ni, Y. X. Guo, and D. Fang, “Miniaturized microstrip Wilkinson power divider with harmonic suppression,” IEEE Microwave Wireless Components Letters, vol. 19, pp. 440- 442, 2009.
F. Zhang and C. F. Li, “Power divider with microstrip electromagnetic band gap element for miniaturization and harmonic rejection,” Electronic Letters, vol. 44, pp. 422-423, 2008.
K. H. Yi and B. Kang, “Modified Wilkinson power divider for nth harmonic suppression,” IEEE Microwave Wireless Components Letters, vol. 13, pp. 178-180, 2003.
D. J. Woo and T. K. Lee “Suppression of harmonics in Wilkinson power divider using dualband rejection by asymmetric DGS,” IEEE Trans. Microwave Theory Tech., vol. 53, pp. 2139-2144, 2005.
D. Hawatmeh, K. A. Shamaileh, and N. Dib, “Design and analysis of multi-frequency unequalsplit Wilkinson power divider using non-uniform transmission lines,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 27, pp. 248-255, 2012.
K. A. Shamaileh, A. Qaroot, N. Dib, and A. Sheta, “Design of miniaturized unequal split Wilkinson power divider with harmonics suppression using non-uniform transmission lines,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 26, pp. 530-538, 2011.
M. Hayati and A. Lotfi, “Compact low pass filter with high and wide rejection in stop band using front coupled tapered CMRC,” Electronic Letters, vol. 46, pp. 846-848, 2010.
J. S. Hong, Microstrip Filters for RF/Microwave Applications, Wiley, New York, 2001.
