학술논문
A Large Signal Equivalent Circuit Modeling and Enhanced RF Output Power of PIN Photodiodes
Document Type
Conference
Author
Source
2022 IEEE/MTT-S International Microwave Symposium - IMS 2022 International Microwave Symposium - IMS 2022, 2022 IEEE/MTT-S. :837-840 Jun, 2022
Subject
Language
ISSN
2576-7216
Abstract
The photodiode (PD) model in the recently reported works is based on a specified bias condition, which can not fully characterize the state of PD under large signal excitation. A large signal equivalent circuit model consisting of nonlinear resistors and capacitors is proposed to solve the problem. The nonlinear resistors and capacitors describe the PD's electron diffusion effect, junction capacitance, and heterojunctions under different reverse bias and optical power condition. An impedance matching network is proposed based on this model, leading to an enhanced RF output power more than 2.2 dB from 10.4 GHz to 11 GHz. The measured results proves the model well.