Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
ÇѱÛÁ¦¸ñ(Korean Title) |
º¯ÇüµÈ ¹ë·±À» °®´Â DTV ¼ö½Å¿ë 3¼ÒÀÚ ÁØ-¾ß±â ¾ÈÅ׳ª |
¿µ¹®Á¦¸ñ(English Title) |
3-Element Quasi-Yagi Antenna with a Modified Balun for DTV Reception |
ÀúÀÚ(Author) |
ÀÌÁ¾ÀÍ
¿©ÁØÈ£
Jong-Ig Lee
Junho Yeo
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¿ø¹®¼ö·Ïó(Citation) |
VOL 21 NO. 04 PP. 0672 ~ 0678 (2017. 04) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â Áö»óÆÄ µðÁöÅÐ TV¹æ¼Û ¼ö½Å¿ë ±¤´ë¿ª ÁØ-¾ß±â ¾ÈÅ׳ª(quasi-Yagi antenna; QYA)ÀÇ ¼³°è¹æ¹ý¿¡ ´ëÇØ ¿¬±¸ÇÏ¿´´Ù. Á¦¾ÈµÈ ¾ÈÅ׳ª´Â FR4 ±âÆÇÀÇ ÇÑ ¸é¿¡ ÀμâµÈ ´ÙÀÌÆú Åõ»ç±â(driver)¿Í ÀÌ¿¡ ±ÙÁ¢ÇÏ´Â Á÷»ç°¢Çü ÆÐÄ¡ ¸ð¾çÀÇ µµÆıâ(director), Á¢Áö¸é ¹Ý»ç±â(reflector)·Î ±¸¼ºµÈ´Ù. ¸¶ÀÌÅ©·Î½ºÆ®¸³(microstrip; MS) ¼±·Î¿Í ÄÚÇ÷¡³Ê½º Æ®¸³(coplanar strip; CPS) ¼±·Î °£ÀÇ ¹ë·±(balun)Àº CPS ¼±·Î Áß¾ÓÀ» µû¶ó »ðÀÔµÈ Á÷»ç°¢Çü MS ÆÐÄ¡ÀÌ°í Á¾´ÜÀÇ ÇÑÂÊÀº CPS ¼±·Î¿¡ ´Ü¶ô ÇÉÀ¸·Î ¿¬°áµÇ¾î ÀÖ´Ù. DTV¿ë ÁÖÆļö ´ë¿ª(470—806 MHz) µ¿ÀÛ¿¡ ÀûÇÕÇϵµ·Ï ¾ÈÅ׳ª¸¦ ¼³°èÇÏ°í ¿©·¯ °¡Áö Ư¼ºÀ» °üÂûÇÏ¿´´Ù. ¼³°èµÈ ¾ÈÅ׳ª´Â Àü¾ÐÁ¤ÀçÆĺñ°¡ 2 ÀÌÇÏÀÎ ÁÖÆļö ´ë¿ª 430—842 MHz, DTV ´ë¿ª ³» ¹è¿ Ãà ¹æÇâÀ¸·ÎÀÇ À̵æ > 3.7 dBi, ÀüÈĹæºñ > 7.4 dB ÀÎ ¾çÈ£ÇÑ Æ¯¼ºÀ» º¸ÀδÙ.
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¿µ¹®³»¿ë (English Abstract) |
In this paper, we studied a design method for a broadband quasi-Yagi antenna (QYA) for terrestrial digital television (DTV) reception. The proposed antenna is composed of a dipole driver, a rectangular patch type director close to the dipole, and a ground reflector printed on an FR4 substrate. A balun between a microstrip line and a coplanar strip (CPS) line is a rectangular patch inserted along the center of the CPS. The end of the balun is connected to the CPS line through a shorting pin. An antenna, as an design example for the proposed antenna, is designed for the operation in the frequency band of 470—806 MHz for terrestrial DTV, and the characteristics of the designed antenna are examined. The antenna has a good performance such as a frequency band of 430—842 MHz for a voltage standing wave ratio < 2, a gain > 3.7 dBi, and a front-to-back ratio > 7.4 dB.
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Å°¿öµå(Keyword) |
ÁØ-¾ß±â ¾ÈÅ׳ª
º¯ÇüµÈ ¹ë·±
±¤´ë¿ª ¾ÈÅ׳ª
DTV ¾ÈÅ׳ª
quasi-Yagi antenna
modified balun
broadband antenna
DTV antenna
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ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
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