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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 : 3 / 32 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ´ë¿ªÆø°ú À̵æÀÌ Çâ»óµÈ ÀÌÁß ´ÙÀÌÆú ÁØ-¾ß±â ¾ÈÅ׳ª ¼³°è
¿µ¹®Á¦¸ñ(English Title) Design of Double Dipole Quasi-Yagi Antenna with enhanced bandwidth and gain
ÀúÀÚ(Author) ¿©ÁØÈ£   Junho Yeo  
¿ø¹®¼ö·Ïó(Citation) VOL 21 NO. 02 PP. 0252 ~ 0258 (2017. 02)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â º¯ÇüµÈ ¹ë·±°ú µÎ °³ÀÇ µµÆı⸦ ÀÌ¿ëÇÏ¿© ÀÌÁß ´ÙÀÌÆú ÁØ-¾ß±â ¾ÈÅ׳ª(double-dipole quasi-Yagi antenna; DDQYA)ÀÇ ´ë¿ªÆø°ú À̵æÀ» Çâ»ó½ÃÅ°´Â ¹æ¹ý¿¡ °üÇÏ¿© ¿¬±¸ÇÏ¿´´Ù. Á¦¾ÈµÈ DDQYA ¾ÈÅ׳ª´Â µÎ °³ÀÇ ¼­·Î ´Ù¸¥ ±æÀÌÀÇ ½ºÆ®¸³ ´ÙÀÌÆú ¾ÈÅ׳ª, Á¢Áö ¹Ý»ç±â, µÎ °³ÀÇ µµÆıâ·Î ±¸¼ºµÈ´Ù. ´ë¿ªÆøÀ» ´Ã¸®±â À§ÇØ º¯ÇüµÈ ¹ë·±À» »ç¿ëÇÏ¿´°í, Áß°£ ¹× °íÁÖÆļö ´ë¿ª¿¡¼­ À̵æÀ» ³ôÀ̱â À§ÇØ µÎ °³ÀÇ µµÆı⸦ Ãß°¡ÇÏ¿´´Ù. ù ¹ø° µµÆıâÀÇ ±æÀÌ¿Í Æø¿¡ µû¸¥ ¾ÈÅ׳ªÀÇ Æ¯¼º º¯È­¸¦ ºÐ¼®ÇÏ¿© 1.60—2.90 GHz ´ë¿ª¿¡¼­ 7 dBiÀÌ»óÀÇ À̵æÀ» ¾ò±â À§ÇÑ ÃÖÁ¾ ¼³°è º¯¼ö¸¦ ¾ò¾ú´Ù. ÃÖÁ¾ ¼³°èµÈ DDQYA ¾ÈÅ׳ª¸¦ FR4 ±âÆÇ »ó¿¡ Á¦ÀÛÇÏ°í Ư¼ºÀ» ½ÇÇèÇÑ °á°ú Àü¾Ð Á¤ÀçÆĺñ(voltage standing wave ratio; VSWR)°¡ 2 ÀÌÇÏÀÎ ´ë¿ªÀº 1.57—3.00 GHzÀÌ°í, 1.60—2.90 GHz ´ë¿ª¿¡¼­ À̵æÀÌ 7.1—7.8 dBi·Î 7 dBi ÀÌ»óÀ» À¯ÁöÇÏ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, the bandwidth and gain enhancement of a double-dipole quasi-Yagi antenna (DDQYA) using a modified balun and two directors is studied. The proposed DDQYA consists of two strip dipoles with different lengths, a ground reflector, which are connected through a coplanar strip line, and two directors. The modified balun is used to increase the bandwidth, whereas two directors are appended to the DDQYA to enhance the gain in the middle and high frequency band. The effects of the length and width of the first director on the antenna performance are analyzed, and final design parameters to obtain a gain over 7 dBi at 1.60—2.90 GHz band are obtained. A prototype of the proposed DDQYA is fabricated on an FR4 substrate, and the experimental results show that the antenna has a frequency band of 1.57—3.00 GHz for a VSWR < 2, and measured gain ranges 7.1—7.8 dBi at 1.60—2.90 GHz band.
Å°¿öµå(Keyword) ÀÌÁß ´ÙÀÌÆú ÁØ-¾ß±â ¾ÈÅ׳ª   º¯ÇüµÈ ¹ë·±   µµÆı⠠ ´ë¿ªÆø°ú À̵æ Çâ»ó   double dipole quasi-Yagi antenna   modified balun   directors   enhanced bandwidth and gain  
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