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Preparation and Dielectric Characteristics of PTEE(Polytetrafluoroethyl one) Composites for Microwave Circuit Board

고주파용 회로기판을 위한 PTEE(Polytetrafluoroethylene) 복합체의 제조 및 유전 특성

  • Published : 2003.08.01

Abstract

The PTFE composites for the microwave printed circuit board were prepared using woven glass fiber. The dielectric constant of the PTFE composites with oven glass fiber tended to decrease with an increase of immersion time, and was saturated at 3 times immersion. It resulted from the fact that fine powders of PTFE filled up at the pore and bend of woven glass fiber sufficiently. As the immersion time increased, the propagation velocity increased due to the reduction of dielectric constant.

고주파용 회로기판으로 사용하는 PTFE 복합체를 woven glass fiber를 사용하여 제조하였다. 유전상수는 PTFE 분산액에 woven glass fiber를 함침하는 횟수 증가에 따라 감소하는 특성을 나타내었으며, 3회 함침 횟수부터는 변화율이 감소하였는데, 이것은 PTFE 미세분말이 woven glass fiber의 기공과 굴곡 사이를 충분히 채우기 때문이다. 또한 함침 횟수 증가에 따라 PTFE의 비율이 증가하면서 유전 상수가 감소하여 회로 기판의 전파 전송속도는 증가하였다.

Keywords

References

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Cited by

  1. Dielectric Characteristics of Polytetrafluoroethylene-based Composites for Microwave Substrates with Formation Pressure vol.26, pp.6, 2013, https://doi.org/10.4313/JKEM.2013.26.6.429