AbstraThis study on the High Vpltage Ionizer for Automotive to reducing of an Electrode heat deterioration. Generally, High Volatage Ionizer is effect on the life cycle because of activating high voltage of electrode needle. An electrode needle deterioration effect on coil bobin number, manufacturing process, ion characteristics, etc. Thus, this study is considering to various characteristic of high voltage ionizer more improvement in effective.

A study on cluster ionizer for passenger automotive. This study is technical study which is performance, reliability, manufacturing method and productivity of cluster ionizer. Cluster ionizer function is comfortable compartment which eliminated of anti-virus, ordor, etc. This study on cluster ionizer which is manufacturing method, performance, reliability, production technology is mass production for automotive

CATV(Cable Television) 및 MATV(Master Antenna TV) 시스템용 신호분기기(Tap-Off)의 광대역설계법을 새로운 방법으로 제안한다. 먼저 결합선로형 방향성결합기의 이론을 도입하여 변성기형 방향성결합기에 적용하여 해석하였다. 제안한 해석방법의 타당성을 입증하기 위하여 시뮬레이션한 결과와 실험결과를 비교 검토하였고 전송선로의 임피던스를 매칭시켜 반사계수 20dB, isolation 25dB(5∼1600MHz)을 만족하는 신호분기기(14dB)의 광대역화(5∼2150MHz)를 실현하였다.