| Active frequency multipliers are very useful and advantageous components which are utilized in many electronic systems. In the following work the basic principles behind active frequency multiplier design are explored in-depth utilizing computerized simulation of idealized FET/HEMT transistor models. The use of an idealized model allows fundamental multiplication mechanisms to be shown and allows a thorough characterization of input and output network design techniques. In doing so, a major contribution is provided to multiplier design theory, which typically utilizes very basic design rules and then skips to the full level of complexity. Also presented in this study is a novel, generalized, large-signal, FET/HEMT modeling technique. Finally, some practical frequency multiplier designs are presented including a frequency tripler with unprecedented third harmonic conversion gain. |
