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A Novel Design of Frequency Multiplier Using Feedforward Technique and Defected Ground Structure  

Park Sang-Keun (Department of Information & Communication Engineering, Chonbuk National University)
Lim Jong-Sik (Division of Information Technology Engineering, Soonchunhyang University)
Jeong Yong-Chae (Department of Information & Communication Engineering, Chonbuk National University)
Kim Chul-Dong (Sewon Teletech Inc.)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.8, 2006 , pp. 725-731 More about this Journal
Abstract
A novel design of frequency multiplier using a feedforward technique and a defected ground structure(DGS) is proposed. The feedforward loop in the proposed frequency multiplier suppresses the fundamental component $(f_0)$, the dumb-bell or spiral shaped DGS diminish unwanted harmonics such as second, third and fourth. Due to the combination of the feedforward structure and the DGS, only the multiplied frequency component$(2f_0,\;3f_0,\;4f_0)$ appears at the output port and the other unwanted components are suppressed excellently. The frequency multiplier is designed at 1 GHz $(f_0)$, by the proposed technique and measured. The measured output power of $2f_0,\;3f_0$ and $4f_0$ is -2.59 dBm, -5.36dBm and -4.57dBm, respectively, when the input power is 0dBm.
Keywords
Frequency Multiplier; Defected Ground Structure(DGS); Asymmetric Spiral DGS; Harmonic Suppression; Feedforward;
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1 D. G. Thomas Jr., G. R. Branner, 'Optimization of active microwave frequency multiplier performance utilizing harmonic terminating impedances', IEEE Trans. Microwave Theory Tech., vol. 44, pp. 2617-2624, Dec. 1996   DOI   ScienceOn
2 S. C. Cripps, RF Power Amplifiers for Wireless Communications, Boston, MA., Artech House, 1999
3 Y. C. Jeong, 'A feedforward power amplifier with loops to reduce RX band noises and intermodulation distortion', Microwave Journal, vol. 45, no. 1, pp. 80-91, Jan. 2001
4 J. S. Lim, C. S. Kim, D. Ahn, Y. C. Jeong, and S. W. Nam, 'Design of low-pass filters using defected ground structure', IEEE Trans. Microwave Theory Tech., vol. 53, no. 8, pp. 2539-2545, Aug. 2005   DOI   ScienceOn
5 S. P. O. Bruce, F. J. $Bei{\beta}wanger$, J. F. Luy, and U. Erben, 'Design and realization of a millimeterwave Si/SiGe HBT frequency multiplier', IEEE Trans. Microwave Theory Tech., vol. 46, pp. 695-700, May 1998   DOI   ScienceOn
6 C. S. Kim, J. S. Park, D. Ahn, and J. B. Lim, 'A novel 1-D periodic defected ground structure for planar circuits', IEEE Microwave Guided Wave Lett., vol. 10, pp. 131-133, Apr. 2000   DOI   ScienceOn
7 Y. C. Jeong, S. G. Jeong, J. S. Lim, and S. W. Nam, 'A new method to suppress harmonics using ${\lambda}/4$ bias line combined by defected ground structure in power amplifiers', IEEE Microwave Wireless Component Lett., vol. 13, pp. 538-540, Dec. 2003   DOI   ScienceOn
8 S. A. Mass, The RF and Microwave Circuit Design Cookbook, Boston, MA., Artech House, 1998
9 J. S. Lim, C. S. Kim, J. S. Park, D. Ahn, and S. W. Nam, 'Design of 10 dB 90 branch line coupler using microstrip line with defected ground structure', Electron. Lett., vol. 36, pp. 1784-1785, Oct. 2000   DOI   ScienceOn