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Title: FDTD investigation of Quasi-TEM hybrid modes on microstrip lines
Authors: Hum, P.J.
Leong, M.S. 
Issue Date: 2000
Citation: Hum, P.J.,Leong, M.S. (2000). FDTD investigation of Quasi-TEM hybrid modes on microstrip lines. Journal of Electromagnetic Waves and Applications 14 (10) : 1383-1393. ScholarBank@NUS Repository.
Abstract: The inhomogeneous dielectric configuration of the microstrip line supports only Quasi-TEM hybrid modes. The mode-coupling efficiency between the longitudinal section electric (LSE) and longitudinal section magnetic (LSM) modes increases with frequency. Microstrip circuits can be analyzed assuming TEM modes but only below a frequency fstat. Theoretical formulas predict that undesirably strong coupling between the Quasi-TEM and TM0 modes, and the onset of the lowest-order surface wave TE0 mode occur at frequencies fTEM and fc,TE(0), respectively. In this paper, the full-wave FDTD method shows the existence of the longitudinal field components, and verifies to a certain extent the validity of the operating frequency range as predicted by the theoretical formulas.
Source Title: Journal of Electromagnetic Waves and Applications
ISSN: 09205071
Appears in Collections:Staff Publications

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