Transcription of IPC-TM-650 High Frequency Resonator Test Method Task …
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IPC-TM-650 High Frequency Resonator Test Method Task …
Number ASSOCIATION CONNECTING Subject ELECTRONICS INDUSTRIES Relative Permittivity and Loss Tangent Using a 3000 Lakeside Drive Split-Cylinder Resonator Bannockburn, IL 60015-1249. Date Revision 01/07. Originating Task Group IPC-TM-650 High Frequency Resonator Test Method Task Group TEST methods MANUAL (D-24c). 1 Scope This Method describes the nondestructive mea- surement of the relative permittivity and loss tangent of unclad z dielectric substrates at microwave frequencies using a split- cylinder Resonator (see Figure 1). Coupling Loop Upper L Cylindrical Cavity Region d Sample Region p Lower Cylindrical L Cavity Region Coupling Loop IPC-25513-1. Figure 1 Split-Cylinder Resonator 2a This test Method is directly applicable for measuring the 2b in-plane (the plane parallel to the surface of the specimen). IPC-25513-2. permittivity of the specimen because the electric field is in-plane. The permittivity of isotropic dielectrics can also be Figure 2 Split-Cylinder Resonator Diagram measured with this Method .
4 Measurement Apparatus 4.1 Split-Cylinder Resonator The method employs a split-cylinder resonator, which is a cylindrical cavity separated into two halves of equal length, with a dielectric substrate
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