Harmonics Terminated L-band Frequency Quadrupler Using Composite Right/ Left-handed Transmission Line

摘要

A design method for an L-band frequency quadrupler with composite right/left-handed transmission line is proposed. The left-handed transmission line in the proposed frequency quadrupler suppresses the fundamental component ( f_0), while the composite right/left-handed A/4 open stub reduces unwanted higher-order harmonics. From the experimental results, unwanted harmonics are suppressed to achieve harmonic distortion of 51 dBc minimum with output phase noise of -94.34 dBc/Hz at 10 kHz offset.