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Analysis of a corrugated horn with the use of the BOR‐FDTD method
Author(s) -
Johnson Christopher P.,
Wahid Parveen
Publication year - 2002
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10348
Subject(s) - finite difference time domain method , perfectly matched layer , microwave , return loss , computation , french horn , gaussian , optics , pulse (music) , mode (computer interface) , physics , acoustics , engineering , mathematics , computer science , algorithm , electrical engineering , telecommunications , antenna (radio) , quantum mechanics , detector , operating system
The derivation of the body‐of‐revolution finite‐difference–time‐domain (BOR‐FDTD) technique is presented and used to determine the return loss and radiation patterns of a corrugated horn. The perfectly matched layer (PML) absorbing boundary conditions are used for the computation. The source excitation is a sine‐modulated Gaussian pulse, spatially weighted with the cylindrical TE 11 mode fields. The results for the return loss and radiation patterns are compared with those obtained using a commercial package based on a mode‐ matching/method‐of‐moments technique. The results show excellent agreement. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 452–457, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10348