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
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¿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.
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¿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.
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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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ÆÄÀÏ÷ºÎ |
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