1Stake J, Jones S H, Dillner L, et al. Hetero-Structure-Barrier-Varactor Design. IEEE Transactions on Microwave Theory and Techniques, 2000,48(4) : 677-682.
2Kangaslahti P, Alinidula P, Porra V. Miniaturized Artificial-Transmission-Line Momolithic Millimeter-Wave Frequency Doublers. IEEE Transactions on Microwave Theory and Techniques,2000,48(4): 510-517.
3Grajal J, Krozer V, Gonzalez E, et al. Modeling and Design Aspects of Millimeter-Wave and Submillimeter-Wave Schottky Diode Varactor Frequency Multipliers. IEEE Transactions on Microwave Theory and Techniques, 2000,48(4):700-711.
4Hirota T, Ogawa H. Uniplanar Monolithic Frequency Doublers. IEEE Transactions on Microwave Theory and Techniques, 1989,37(8) :1249-1254.
5Angelov I, Zirath H, Rorsman N. A New Empirical Nonlinear Model for HEMT and MESFET Devices. IEEE Transactions on Microwave Theory and Techniques, 1992,40(12): 2258-2266.