Dielectric Uniformity and Manufacturing Precision of PTFE PCBs for Aerospace Communication Equipment
1. Engineering Overview Modern aerospace RF communication equipment, including satellite transceivers and spaceborne antenna modules, demands ultra-low-loss PTFE PCBs with tight dielectric uniformity and precise manufacturing tolerances. Small variations in Dk or CTE can lead to phase drift, impedance mismatch, and degraded link margin in Ku/Ka-band RF payloads. PTFE PCB laminates, with Dk...
