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* 내 용			>요즘 스마트폰 시장을 뜨겁게 달구고 있는 애플의 아이폰4S와 삼성전자의 갤럭시S2 LTE는 새로운 안테나 기술로도 주목을 받고 있다. > >20일 통신업계에 따르면 아이폰4S와 갤럭시S2 LTE는 모두 주요 안테나가 2개라는 공통점이 있다. > >그러나 아이폰4S의 듀얼 안테나가 3세대(3G) 통화품질 개선에 초점을 맞춘 반면, 갤럭시S2 LTE는 속도가 빠르고 용량이 많은 4세대(4G) 신호를 잡기 위해 2개의 안테나를 적용했다는 점이 다르다. > >애플은 지난 4일(미국시간) 아이폰4S를 공개하면서 "아이폰4S는 휴대전화 가운데 최초로 송·수신을 모두 할 수 있고 서로 전환이 가능한 2개의 안테나를 장착했다"며 "이는 통화 품질을 높이고 데이터 최대 속도를 2배 빠르게 한다"고 설명했다. > >PC월드 등 외국 IT 매체들은 이 듀얼 안테나 기술이 아이폰4의 '데스 그립(Death Grip·아이폰 아래 부분을 잡으면 통화가 끊기는 현상)' 문제를 해결하는 역할을 한다고 보도했다. > >아이폰4도 주요 안테나가 2개였지만, 이들 안테나는 3G 신호 송신과 수신을 각기 따로 처리했다. 따라서 수신 담당 안테나가 있는 아래 부분을 잡으면 통화 감도가 떨어지는 현상이 나타났다. > >하지만 아이폰4S는 2개의 안테나가 서로 신호 송·수신을 전환할 수 있어서 어느 한쪽이 신호를 못잡으면 다른 한쪽이 신호를 처리하도록 해 통화 실패율을 현저히 낮춘다. > > > > > > > > > > ><a href="http://alpha.awesomescan.com/1201.html" style="color:#fff">변액연금보험</a> ><a href="http://alpha.awesomescan.com/1202.html" style="color:#fff">정기보험비교</a> ><a href="http://alpha.awesomescan.com/1203.html" style="color:#fff">태아보험사이트</a> ><a 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