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satellite payload - KKPCB

Low-Loss Transmission and Impedance Control of PTFE PCBs in Satellite Communication Payloads

1.Engineering Overview / Abstract   Modern satellite communication payloads operating in Ka- and Ku-band frequencies require PCB substrates with ultra-low loss, precise impedance control, and stable phase performance. PTFE PCB laminates provide an ideal platform for high-frequency RF interconnects due to their low dielectric constant (Dk = 2.10 ± 0.03) and minimal loss tangent (Df...

Low-Loss Transmission and Dielectric Stability of Ceramic PCBs in Satellite and Aerospace Communication Payloads

1. Overview   In satellite and aerospace communication payloads operating above 30 GHz, PCB substrates must maintain exceptional dielectric uniformity and low-loss performance under extreme thermal and radiation conditions.  Ceramic PCB materials—such as alumina (Al₂O₃) and aluminum nitride (AlN)—are widely adopted due to their high dielectric constant, stable dissipation factor, and superior heat conduction.  KKPCB’s...