1991•IEEE Transactions on Microwave Theory and TechniquesRequires access

Admittance calculation of a slot in the shield of a multiconductor transmission line

Richard G. S. Plumb

Abstract

The admittance calculation for a narrow slot in the conducting shield of a multiconductor transmission line (MTL) is presented. An approximate calculation is given for the admittance seen looking into a slot in the shield of a multiconductor transmission line when a uniform magnetic current is placed over the slot. The calculation presented is approximate in that only the transmission line mode is used in the calculation. All higher-order waveguide modes are neglected. This allows the magnetic current to be replaced by a point voltage source at the slot location. The admittance calculation then corresponds to calculating the driving point admittance of a point voltage source located in the shield of an MTL.>

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Key concepts: Admittance, Transmission line, Electric power transmission, Shield, Point (geometry), Line (geometry), Voltage, Admittance parameters