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FDTD analysis of photoconducting antennas for millimeter‐wave generation
Author(s) -
Zhang Jiazong,
Chen Zhizhang,
Chen Xiaomin
Publication year - 2000
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/1099-047x(200007)10:4<213::aid-mmce3>3.0.co;2-v
Subject(s) - finite difference time domain method , extremely high frequency , antenna (radio) , microwave , optics , millimeter , computer science , numerical modeling , time domain , acoustics , physics , optoelectronics , telecommunications , geophysics , computer vision
In this paper, a hybrid numerical technique is presented for modeling a photoconducting antenna structure designed for optoelectronic generation of millimeter waves. The technique interfaces the solid‐state device model with the three‐dimensional (3D) finite‐difference time‐domain (FDTD) method to achieve the active antenna modeling effectiveness and efficiency. The FDTD algorithm is applied to simulate the passive part of the antenna structure, whereas the numerical device simulation is employed to model the photoconductor that is illuminated by lasers. Physical performance of the photoconductor and response of the antenna are analyzed. Numerical results show good correlation with the experimental result and consequently demonstrate the feasibility of the full‐wave modeling. © 2000 John Wiley & Sons, Inc. Int J RF and Microwave CAE 10: 213–220, 2000.