전파기술은 산업 정보화의 급속한 발전으로 인해 그 이용 분야가 산업 전 분야로 확산되어 왔으며, 앞으로도 전파통신시스템의 확산은 계속될 전망이다. 전파산업이 발전함에 따라 전파이용이 방송통신뿐만 아니라 제조산업, 과학연구 및 의료기기 분야까지 응용도 확대되고 있으며, 현재 그 사용이 급증하고 있다. 세계적으로 분배된 ISM(Industrial, Scientific, Medical) 대역을 이용한 전파응용설비(ISM기기)는 통신을 제외한 산업ㆍ과학ㆍ의학적인 용도의 목적을 위해 제한적으로 RF 에너지를 생성하고 사용하도록 설계된 기기이다. 더욱이 최근 국내외에서 사용하는 무선통신기기의 급증으로 이용할 수 있는 전파 스펙트럼이 부족해지고 있으므로 ISM 주파수 대역과 같이 국제적으로 조화되고 비면허로 공유할 수 있는 스펙트럼 할당을 확대해서 성공적인 결과를 가져 왔으며, 이러한 소출력 비면허 무선기기의 폭넓은 사용은 전파산업을 활성화시키고 정보통신기술 발전을 도모하는 차원에서 많은 긍정적인 효과를 가지고 있다.
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