RF Performance Test of Sub-6 GHz Switching System for Multiple Concurrent Users on a Single Network Analyzer

This study aims to develop a switching system that enables the simultaneous measurement of various devices using a vector network analyzer (VNA). Although the VNA plays an important role in the production of RF equipment, the existing system is limited to a single user, leading to be low efficiency and high cost. To overcome this limitation, we present a multi-user switching system, allowing eight users to concurrently share a single VNA. The developed switching system has been validated by measuring insertion loss, return loss, and isolation.