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1998/12/09 (12:12) from 163.239.35.190' of eemic10.sogang.ac.kr' | Article Number : 120 |
ÈÆ (yhchun@eemic.sogang.ac.kr) | Access : 5073 , Lines : 25 |
Re: MMIC Board Design using Microstrip Line |
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¹°À½ÀÌ wrote: >¾È³çÇϼ¼¿ä.. > >Àú´Â ´ÙÀ½°ú °°Àº »ç¾çÀ¸·Î MMIC Board DesignÀ» ÇÏ·Á°í Çϴµ¥ ¿©·¯ºÐ°ú °°ÀÌ ³íÀÇÇϸé ÁÁÀ»°Í °°¾Æ À̱ÛÀ» ¿Ã¸²´Ï´Ù. > >Á¶°Ç1) Sub: FR-4, Er=4.8, H=60mil >Á¶°Ç2) RFIC Pinµé°£ÀÇ Æø: 25mil, PinÀÚü(lead)³ÐÀÌ: 10mil >Á¶°Ç3) Operating Frequency: 900MHz > >Á¶°Ç1)·Î ºÎÅÍ 50ohmÀÇ striplineÀ» °è»êÇϸé Width°¡ 108milÀÌ ³ª¿É´Ï´Ù. >±×·¯³ª ÀÌ°ÍÀº ³Ê¹«³ª ³Ð¾î¼ RFIC·Î ºÎÅÍ ²ø¾î³»¿À·Á¸é ´Ù¸¥ Çɵé°ú ÁßøÀÌ µÇ°Ú°í Width¸¦ ¹Ù²ÙÀÚ´Ï ¶óÀÎÀÇ Æ¯¼ºÀÓÇÇ´ø½º°¡ ¹Ù²ò´Ï´Ù. ¹°·Ð ÀúÈñ°¡ °¡Áø >°ÍÀº Àåºñ·Î´Â H¸¦ 60mil °ú 30mil¹Û¿¡ »ç¿ëÇÒ ¼ö ¾ø´Ù´Â ±º¿ä. >ÁÁÀº ¹æ¹ýÀÌ ¾øÀ»±î¿ä.... > ²À 50ohm ¶óÀÎÀ» »ç¿ëÇØ¾ß Çϳª¿ä? Áß¿äÇÑ °Ç 50ohm matching ÀÌ ¾Æ´Ï¶ó, complex conjugate matchingÀÔ´Ï´Ù. Áï, ÃÖ´ë È¿À²À» ¾ò±âÀ§Çؼ ÇÊ¿ä·Î ÇÏ´Â °ÍÀº ¾çÂÊÀÇ ÀÓÇÇ´ø½º°¡ ¼·Î complex conjugate¸é µÈ´Ù´Â °ÍÀÌÁÒ. 100ohmÀ» ±âÁØÀ¸·Î ¼³°èµÈ chipÀ̶ó¸é, 100ohm¿¡ Á¤ÇÕÇÏ¸é µË´Ï´Ù.(¿ÜºÎ¿¡¼) ¿©°Ç»ó hi-impedance line¸¸À» ¾µ ¼ö ¹Û¿¡ ¾ø´Ù¸é, ±×³É »ç¿ëÇϽʽÿä. ÀÓÇÇ´ø½ºÂ÷ÀÌ°¡ ³Ê¹« ³ª¸é, ÃÖ¾ÇÀÇ °æ¿ì¿¡´Â ¿ÜºÎ¿¡ ÀÓÇÇ´ø½º Æ®·£½ºÆ÷¸Ó¸¦ »ç¿ëÇÏ´Â ¹æ¹ýµµ ÀÖ½À´Ï´Ù. Á¶±ÝÀ̳ª¸¶ µµ¿òÀÌ µÆÀ¸¸é ÁÁ°Ú±º¿ä. ±×·³ À̸¸... |
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