Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
GSM/CDMA ´ë¿ª¿ë LTCC Diplexer ¼³°è ¹× Á¦ÀÛ |
¿µ¹®Á¦¸ñ(English Title) |
Design and Fabrication of a LTCC Diplexer for GSM/CDMA Applications |
ÀúÀÚ(Author) |
±èÅ¿Ï
ÀÌ¿µÃ¶
Tae-Wan Kim
Young-Chul Lee
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¿ø¹®¼ö·Ïó(Citation) |
VOL 13 NO. 07 PP. 1267 ~ 1271 (2009. 07) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â LTCC ´ÙÃþȸ·Î ±â¼úÀ» ÀÌ¿ëÇÏ¿© GSM°ú CDMA ´ë¿ªÀ» ºÐ¸® ÇÏ´Â diplexer¸¦ ¼³°è ¹× Á¦ÀÛÇÏ¿© ±× Ư¼ºÀ» ÃøÁ¤ÇÏ¿´´Ù. DiplexerÀÇ ÁýÀûµµ¸¦ ³ôÀ̱â À§ÇØ 3Â÷¿ø ÀûÃþÇü ÀδöÅÍ¿Í Ä¿ÆнÃÅ͸¦ ÀÌ¿ëÇÏ¿© À¯ÀüÀ² 7ÀÌ°í, ÃÑ 6ÃþÀÇ LTCC ±âÆÇ¿¡ ¼³°èµÇ¾ú´Ù. Àú¿ªÅë°ú ÇÊÅÍ¿¡ ÀδöÅÍ¿Í °í¿ªÅë°ú ÇÊÅÍ¿¡ Ä¿ÆнÃÅ͸¦ °¢°¢ º´·Ä·Î °áÇÕÇÏ¿© µÎ ´ë¿ªÀÇ ÁÖÆļö ´ë¿ªÀÇ ¼±ÅüºÀ» ³ô¿´´Ù. LTCC Ç¥ÁØ °øÁ¤À¸·Î Á¦ÀÛ µÇ¾îÁø ´ÙÀÌÇ÷º¼ÀÇ Å©±â´Â CPW pad¸¦ Æ÷ÇÔÇÏ¿© 3,450 x 4,000 x 694 ¥ìm3ÀÌ´Ù. GSM ´ë¿ª¿¡¼ -1.35 dB ÀÌÇÏÀÇ »ðÀÔ ¼Õ½Ç°ú -5.66 dB ÀÌ»óÀÇ ¹Ý»ç ¼Õ½Ç, ±×¸®°í CDMA ´ë¿ª¿¡¼´Â -1.54 dB ÀÌÇÏÀÇ »ðÀÔ ¼Õ½Ç°ú -9.30 dB ÀÌ»óÀÇ ¹Ý»ç ¼Õ½ÇÀÇ Æ¯¼ºÀ» ³ªÅ¸³»¾ú´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In this paper, a diplexer circuit to separate GSM from CDMA band is designed using a LTCC (Low Temperature Cofired Ceramic) multi-layer technology. In order to increase a integration capability of the diplexer, it is designed using 3-dimensional (3-D) multi-layer compact inductor and capacitors in 6-layer LTCC substrate with a relative dielectric constant of 7. In order to achieve high selectivity of the bands, a shunt capacitor and inductor are designed in the high-pass filter (HPF) and low-pass filter (LPF), respectively. The size of the fabricated diplexer including CPW pads is 3,450 x 4,000 x 694 ¥ìm3. An insertion loss (IL) and return loss in GSM band are less than -1.35 dB and more than -5.66 dB, respectively. In the case of CDMA band, the IL of -1.54 dB and RL of above -9.30 dB are archived.
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Å°¿öµå(Keyword) |
LTCC
mulil-band
diplexer
low-pass filter
high-pass filter
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ÆÄÀÏ÷ºÎ |
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