A Very Low Spurious Si-Bipolar Frequency Multiplier


A very low spurious frequency doubler for wireless communication systems is proposed. The key to this technique is to change the input signal into a rectangular wave, which effectively suppresses the fundamental frequency and the odd harmonic components. The desired to undesired signal ratio (D/U) is better than 50 dBc at the desired output frequency of 1.1GHz. The proposed doubler eliminates the need for the band-pass filters which occupy a large part of the radio frequency (RF) module. High order multipliers easily are fabricated with this method. In this paper, a quadrupler is also described. key words: multiplier, low spurious, Si-bipolar, frequency dou-

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@inproceedings{YAMAGUCHIa1999AVL, title={A Very Low Spurious Si-Bipolar Frequency Multiplier}, author={Yo YAMAGUCHI†a and Akihiro Yamagishi and Akira MINAKAWA}, year={1999} }