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A 140 GHz high efficiency frequency doubler based on a physical‐based SDD model of SBD
Author(s) -
Yan Bo,
Ren Tianhao,
Wu Chenkai,
Wei Haomiao,
Wang Li,
Li Yu,
Xu Ruimin,
Zhang Yong
Publication year - 2021
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2967
Subject(s) - spice , schottky diode , terahertz radiation , electronic engineering , frequency multiplier , bandwidth (computing) , diode , power (physics) , computer science , materials science , optoelectronics , electrical engineering , engineering , physics , telecommunications , quantum mechanics
Summary In this paper, a physical‐based SDD (symbolically defined devices) model of SBD (Schottky barrier diode) is proposed, in which conventional C‐V characteristics of diode SPICE model are modified by terahertz C‐V characteristics obtained by physical‐based simulation. Detail modeling method and design process are introduced in detail. To verify the accuracy of the SDD model, a 140 GHz high efficiency doubler is designed, fabricated, and measured. The measured maximum efficiency is 34.3% under 90 mW input power, and the 3 dB bandwidth is about 7 GHz, which agrees well with the simulated results. The proposed physical‐based SDD model is demonstrated to be more accurate than traditional diode SPICE model.