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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 :

ÇѱÛÁ¦¸ñ(Korean Title) UHF RFID ¸®´õ±â¿ë LHCP ¾ÈÅ׳ª ¼³°è ¹× Á¦ÀÛ
¿µ¹®Á¦¸ñ(English Title) Design and Fabrication of LHCP Antenna for UHF RFID reader
ÀúÀÚ(Author) ¹Ú¼ºÀÏ   ±è¼±ÀÏ   °í¿µÇõ   Sung-il Park   Sun-il Kim   Young-hyuk Ko  
¿ø¹®¼ö·Ïó(Citation) VOL 14 NO. 01 PP. 0023 ~ 0030 (2010. 01)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â ¿øÇüÆíÆĸ¦ °¡Áø 900MHz´ë¿ª RFID ¸®´õ±â ¾ÈÅ׳ª¸¦ ¼³°è ¹× Á¦¾ÈÇÏ°í ½ÇÇè¿¡ ÀÇÇÏ¿© Á¶»çÇÏ¿´´Ù. 900MHz´ë¿ª RFID ¸®´õ±â ¾ÈÅ׳ª´Â Á¼±ÆíÆĸ¦ »êÃâÇÒ ¼ö ÀÖ´Â ¿ë·®À» ±¸¼ºÇÑ ´Ü¼øÇÑ ¹æ»ç±â·Î Á¦¾ÈµÇ¾ú´Ù. ¶ÇÇÑ, ¼³°è‧Á¦ÀÛÇÑ 900MHz´ë¿ª RFID ¸®´õ±â ¿øÇüÆíÆÄ ¾ÈÅ׳ª´Â 1010MHz Áß½ÉÁÖÆļö ´ë¿ª¿¡¼­ -38.28dBÀÇ ¸®ÅϷνº °ªÀ» °¡Áö¸ç, 905¢¦1030MHz¿¡¼­ 12.5%´ë¿ªÆøÀ» °®´Â´Ù. Á¦¾ÈÇÑ LHCP ¾ÈÅ׳ª ÃÖ´ëÀ̵æÀº 6dBi ÀÌ°í, Ãàºñ°¡ 2ÀÌÇÏ¿¡¼­ µ¿ÀÛÇÏ´Â ¿øÆíÆÄ ¾ÈÅ׳ªÀÌ´Ù. ÃøÁ¤µÈ °á°ú, 2±âÁØ ÀÌÇÏ Ãàºñ°ªÀº µ¿ÀÛ ÁÖÆļö¿¡¼­ ¾çÈ£ÇÏ°Ô °üÃøµÇ¾úÀ¸¸ç, Á¦¾ÈµÈ ¾ÈÅ׳ª´Â ¹«¼±Åë½Å¿¡¼­ RFIDÀÀ¿ëÀ» À§ÇØ ÀûÇÕÇÏ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, a design for the 900MHz bandwidth RFID reader antenna with circular polarization is proposed and experimentally investigated. The 900MHz bandwidth RFID reader antenna is proposed as a simple radiator with loading capacitor to generate LHCP(Left Hand Circular Polarization). Also, the design and fabrication of antenna has the returnloss of -32.28dB at the center frequency of 1010MHz and Bandwidth of 12.5% at 905Hz¡­1030MHz. Proposed LHCP antenna of maximum gain is 6dBi and satisfy axial ratio based on 2. From the measured result, axial ratios based on 2 are observed at the operating frequencies. The proposed antenna is suitable for RFID applications in wireless communications.
Å°¿öµå(Keyword) ¿øÇüÆíÆÄ ¾ÈÅ׳ª   ¿ë·®À» ÀåÇÏÇÑ MSA(Microstrip Antenna)   RFID   900MHz ´ë¿ª ¾ÈÅ׳ª   Circular Polarization Antenna   QMSA(Quad Mzicroatrip Antenna)   RFID   900MHz Antenna  
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