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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 : 6 / 6

ÇѱÛÁ¦¸ñ(Korean Title) Â÷·® Ãæµ¹ ¹æÁö ·¹ÀÌ´õ ½Ã½ºÅÛ ÀÀ¿ëÀ» À§ÇÑ 77 GHz µµÆÄ°ü Àü¾Ð Á¶Á¤ ¹ßÁø±â
¿µ¹®Á¦¸ñ(English Title) 77 GHz Waveguide VCO for Anti-collision Radar Applications
ÀúÀÚ(Author) ·ù±Ù°ü   ±è¼ºÂù   Keun-Kwan Ryu   Sung-Chan Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 18 NO. 07 PP. 1652 ~ 1656 (2014. 07)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â Â÷·® Ãæµ¹ ¹æÁö ·¹ÀÌ´õ ½Ã½ºÅÛ ÀÀ¿ëÀ» À§ÇÏ¿© Á᫐ ÁÖÆļö°¡ 77 GHzÀÎ µµÆÄ°ü (waveguide) Àü¾ÐÁ¶Á¤ ¹ßÁø±â (VCO, voltage controlled oscillator)¸¦ ±¸ÇöÇÏ¿´´Ù. ±¸ÇöµÈ µµÆÄ°ü Àü¾Ð Á¶Á¤ ¹ßÁø±â´Â GaAs ±â¹ÝÀÇ °Ç´ÙÀÌ¿Àµå (Gunn diode)¿Í ¹ö·¢ÅÍ ´ÙÀÌ¿Àµå (varactor diode), µµÆÄ°ü õÀ̱â (waveguide transition), Àú¿ª Åë°ú ÇÊÅÍ(LPF, low pass filter) ¹× °øÁø±â (resonator) ±â´ÉÀ» µ¿½Ã¿¡ ¼öÇàÇÏ´Â ´ÙÀÌ¿ÀµåÀÇ ¹ÙÀ̾ (bias) Æ÷½ºÆ® (post)·Î ±¸¼ºµÇ¾îÁø´Ù. 77 GHz ½ÅÈ£´Â µ¿°ø (cavity)À» 38.50 GHz¿¡¼­ ¹ßÁøÇϵµ·Ï ¼³°èÇÏ¿© 2ü¹èµÈ ½ÅÈ£¸¦ »ç¿ëÇÏ¿´À¸¸ç WR-12¿¡¼­ WR-10À¸·Î õÀ̵Ǿî Ãâ·ÂµÈ´Ù. µµÆÄ°ü õÀ̱â´Â 77 GHzÀÇ Áß½ÉÁÖÆļö¿¡¼­ 1.86 dBÀÇ »ðÀÔ¼Õ½Ç (insertion loss)°ú –30.22 dBÀÇ ÀԷ¹ݻç°è¼ö (S11, input reflection coefficient) Ư¼ºÀ» °®´Â´Ù. Á¦ÀÛµÈ µµÆÄ°ü Àü¾Ð Á¶Á¤ ¹ßÁø±â´Â 870 MHzÀÇ ´ë¿ªÆø (bandwidth)°ú 12.0 dBm ~ 13.75 dBmÀÇ Ãâ·Â Àü·Â Ư¼ºÀ» ³ªÅ¸³»¾ú´Ù. À§»óÀâÀ½ Ư¼ºÀº 1 MHz ¿ÀÇÁ¼Â (offset)¿¡¼­ -100.78 dBc/HzÀÇ ¿ì¼öÇÑ Æ¯¼ºÀ» ¾ò¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this work, we demonstrated a 77 GHz waveguide VCO with transition from WR-12 to WR-10 for anti-collision radar applications. The fabricated waveguide VCO consists of a GaAs-based Gunn diode, a varactor diode, a waveguide transition, and two bias posts for operating as a LPF and a resonator. The cavity is designed for fundamental mode at 38.5 GHz and operated at second hormonic of 77 GHz. The waveguide transition has a 1.86 dB of insertion loss and –30.22 dB of S11 at the center frequency of 77 GHz. The fabricated VCO achieves an oscillation bandwidth of 870 MHz. Output power is from 12.0 to 13.75 dBm and phase noise is –100.78 dBc/Hz at 1 MHz offset frequency from the carrier.
Å°¿öµå(Keyword) µµÆÄ°ü   Àü¾Ð Á¶Á¤ ¹ßÁø±â   77 GHz   °Ç ´ÙÀÌ¿Àµå   ¹ö·¢ÅÍ ´ÙÀÌ¿Àµå   waveguide   VCO   77 GHz   Gunn diode   varactor diode  
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