Scattering at the junction of two waveguides with finite wall conductivity is rigorously treated using E-field mode matching and the conservation of complex power technique. At the transverse junction discontinuity between the two waveguides, the complex power absorbed by the junction wall is taken into account along with the usual transfer of complex power from one guide to the other. This leads to a generalized form of the scattering matrix (S) of the lossy junction which incorporates the surface impedance Z/sub m/ of the transverse metallic wall, assumed to be a good conductor. The specific case of a copper transverse diaphragm with centered circular iris in an X-band guide is considered and the equivalent TE/sub 10/ shunt admittance is computed. Numerical results are also given for lossy X-band cavity resonators with circular coupling holes.
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机译:使用电场模式匹配和节约复杂功率技术,可以严格处理两个具有有限壁电导率的波导交界处的散射。在两个波导之间的横向结不连续处,考虑了结壁吸收的复功率以及通常将复功率从一个波导传输到另一波导的问题。这导致有损结的散射矩阵(S)的一般形式,其中包含了被认为是良好导体的横向金属壁的表面阻抗Z / sub m /。考虑在X波段波导中具有居中圆形虹膜的铜制横向振动膜的特殊情况,并计算出等效的TE / sub 10 /分流导纳。还给出了具有圆形耦合孔的有损X波段腔谐振器的数值结果。
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