On the applicability of conventional transmission line theory within cavities

[摘要] We investigate whether or not conventional transmission line theory needs tobe modified if transmission lines are considered that are located in acavity rather than in free space. Our analysis is based on coupledPocklington's equations that can be reduced to integral equations for theantenna mode and the transmission line mode. Under the usual assumptions ofconventional transmission line theory these modes do approximatelydecouple within a cavity. As a result, cavity properties will primarilyinfluence the antenna mode but not the transmission line mode.

[学科分类] 电子、光学、磁材料