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http://dx.doi.org/10.5515/KJKIEES.2007.18.11.1271

A Design of Frequency Multipliers Using λ/4 Open Composite Right/Left Handed Stub and Left Handed Transmission Line  

Seo, Su-Jin (Dept. of Electronics and Communication Engineering, Chonbuk National University)
Park, Sang-Keun (Samsung Thales)
Choi, Heung-Jae (Dept. of Electronics and Communication Engineering, Chonbuk National University)
Jeong, Yong-Chae (Dept. of Electronics and Communication Engineering, Chonbuk National University)
Lim, Jong-Sik (Dept. of Electrical & Communication System Engineering, Soonchunhyang University)
Publication Information
Abstract
A novel frequency multiplier using composite right/left-handed transmission line is proposed. The left-handed transmission line in the proposed frequency multiplier suppresses the fundamental component($f_0$), while the composite right/left-handed ${\lambda}/4$ open stub diminishes unwanted harmonics. Due to the combination of the left-handed transmission line and composite right/left-handed ${\lambda}/4$ open stub, the only desirable multiplied frequency component such as 3 $f_0$ and 4 $f_0$ are obtained at the output port excellently. For the example of the proposed design, frequency multipliers are designed at 1 GHz of $f_0$ and measured. The measured output power of 3 $f_0$ and 4 $f_0$ is -5.67 dBm and -6.43 dBm, respectively, when the fundamental input power was 0 dBm.
Keywords
Frequency Multiplier; Harmonic Suppression; Composite Right/Left-Handed Transmission Line;
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