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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 2 / 3

ÇѱÛÁ¦¸ñ(Korean Title) ÇØ»ó VHF ¸ðµ©ÀÇ ¼Û½ÅÀü·Â ¸ð´ÏÅ͸µÀ» À§ÇÑ °áÇÕ±â ¹× Á¤·ùȸ·Î ¼³°è
¿µ¹®Á¦¸ñ(English Title) Design of Coupling and Rectifying Circuit for Monitoring of Transmitting Power of Maritime VHF Modem
ÀúÀÚ(Author) ±è½Â±Ù   ¼º¼Ò¿µ   ÀÓ¿ë°ï   ¹Úµ¿±¹   Seung-Geun Kim   Soyoung Sung   Young-Kon Lim   Dong-kook Park  
¿ø¹®¼ö·Ïó(Citation) VOL 14 NO. 12 PP. 2642 ~ 2648 (2010. 12)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®Àº ÇØ»ó¿ë VHF µðÁöÅÐ ¸ðµ©ÀÇ ±¸¼º¿ä¼Ò Áß ÇϳªÀÎ ¹æÇ⼺ °áÇÕ±â ¹× Á¤·ùȸ·ÎÀÇ ¼³°è¿¡ °üÇÑ °ÍÀÌ´Ù. ¸ðµ©À» ÅëÇØ ¼Û½ÅµÇ´Â Àü·ÂÀ» ¸ð´ÏÅ͸µÇϱâ À§ÇØ, ¼Û½Å ½ÅÈ£ÀÇ ÀϺθ¦ ÃßÃâÇÏ´Â ¹æÇ⼺ °áÇÕ±â¿Í, °áÇÕµÈ RF ½ÅÈ£¿¡ ºñ·ÊÇÏ´Â DC Àü¾ÐÀ» ¸¸µé¾î³»´Â Á¤·ùȸ·Î¸¦ ¼³°è Á¦ÀÛÇÏ¿´´Ù. 160 MHz ´ë¿ª¿¡¼­ 25 dB ÀÌ»óÀÇ ÁöÇ⼺À» °®´Â ÆòÇà °áÇÕ ¼±·Î °áÇձ⸦ ±¸ÇöÇÏ¿©, ¸ðµ© ¼Û½Å Àü·ÂÀÌ 1 W ~ 25 W·Î º¯ÇÒ ¶§ Á¤·ùȸ·ÎÀÇ Ãâ·Â Àü¾ÐÀÌ ¾à 0.85 V ~ 1.6 V·Î ¼±ÇüÀûÀ¸·Î º¯ÇÏ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. Á¦¾ÈµÈ °áÇÕ±â ¹× Á¤·ùȸ·Î´Â ÇØ»ó¿ë VHF µðÁöÅÐ ¸ðµ©¿¡ À¯¿ëÇÏ°Ô »ç¿ëµÉ °ÍÀ¸·Î ±â´ëµÈ´Ù.
¿µ¹®³»¿ë
(English Abstract)
The design of coupling and rectifying circuits for the maritime VHF digital modem is investigated in this paper. To monitor the transmitting power of the modem, a directional coupler which is used to extract a small fraction of the transmitter signal power, and a rectifying circuit which make DC voltage proportional to the coupled rf power are designed and fabricated. The parallel-coupled line coupler with directivity of above 25 dB at 160 MHz bands is designed and it is shown that the output voltage of the rectifying circuit is linearly changing from 0.85 V to 1.6 V when the transmitting power of the modem is varying from 1 W to 25 W. The proposed coupler and rectifying circuits are expected to be suitable for maritime VHF digital modem.
Å°¿öµå(Keyword) ¹æÇ⼺ °áÇձ⠠ ÆòÇà°áÇÕ¼±·Î °áÇձ⠠ ÇØ»ó VHF ¸ðµ©   Á¤·ùȸ·Î   Directional coupler   Parallel-coupled line coupler   Maritime VHF modem   Rectifying circuit  
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