標題: Negative group velocity and anomalous transmission in a one-dimensionally periodic waveguide
作者: Hwang, RB
電信工程研究所
Institute of Communications Engineering
關鍵字: corrugated waveguide;negative group velocity;periodic structures
公開日期: 1-Feb-2006
摘要: This study presents a theoretical investigation of the negative group velocity (NGV) and anomalous transmittance of waves in the stop band of a corrugated parallel-plate waveguide (CPPWG). The two different schemes, scattering analysis for a finite CPPWG and the dispersion relation of an infinite CPPWG, were used to investigate the physical insight of the wave process. The NGV zone corresponds to the stopband slanted at an angle on the Brillouin diagram, following the mutual verification of the results obtained by the two different approaches. This class of stopband is caused by the contra-flow interaction between the fundamental mode and the space harmonics of higher-order modes. Additionally, fluctuation was also found in the transmitted coefficient within the conventional stopband, caused by the excitation of the first higher-order mode within the stopband of the fundamental mode.
URI: http://dx.doi.org/10.1109/TAP.2005.863157
http://hdl.handle.net/11536/12650
ISSN: 0018-926X
DOI: 10.1109/TAP.2005.863157
期刊: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume: 54
Issue: 2
起始頁: 755
結束頁: 760
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