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한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제31권 제5호
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    초록·키워드

    In this paper, a 100 Watt high power amplifier has been implemented and performed evaluation, which is operating at UHF band (470 ~ 806 ㎒) for Digital TV repeater. To achieve increase of bandwidth and high power capability, 3-way power combiner and divider of Wilkinson type was adopted. In order to measure the fabricated 100 Watt power amplifier, the estimation technique function which makes equivalent mask was used. As a result of the measurement, the existence of pilot signal is confirmed and the signal transmitted at the rated output power 100 Watt is brought out the flat feature through 6 ㎒ bandwidth. and it resulted that its value was less than -47 dB at the edge of radiation channel and less than -110 dB at more than 6 ㎒ position from channel edge.

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      UCI(KEPA) : I410-ECN-0101-2009-559-016893633