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Abstract ▼ AI-Helper

Of passive elements employed for base station or repeater facilities used for the purpose of constructing mobile communication service networks, passive intermodulation distortion (PIMD) occurs more frequently in antennae and RF power dividers. The power transferred through dividers generates heat i...

Of passive elements employed for base station or repeater facilities used for the purpose of constructing mobile communication service networks, passive intermodulation distortion (PIMD) occurs more frequently in antennae and RF power dividers. The power transferred through dividers generates heat in the dielectrics that make up distribution circuits, which causes characteristic changes in the materials that make up the dielectrics and conducting lines. This causes progressive PIMD, which is the increase of PIMD over time. Consequently, the occurrence of progressive PIMD caused by characteristic changes in materials can be delayed by replacing materials that are vulnerable to thermal deformation with materials that have stronger heat resistance. In order to reduce progressive PIMD caused by thermal deformations, the weakness of Wilkinson power dividers, the Hybrid Coupler method was employed to create a power divider which uses couplers. An experiment on the temperature cycling environment entrusted to the National Research Institute showed that this power divider reduced PIMD by approximately 10-15% compared to the Wilkinson power divider and at the same time, decreased progressive PIMD which is the weakness of Wilkinson power dividers.

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