Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
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¿µ¹®Á¦¸ñ(English Title) |
A study on the design for mobile satellite receiver antenna |
ÀúÀÚ(Author) |
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Sangho Ju
Jeongho Ko
Young-Goo Kim
Ik-Guen Choi
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¿ø¹®¼ö·Ïó(Citation) |
VOL 14 NO. 07 PP. 1529 ~ 1536 (2010. 07) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â Ku-band¿¡¼ µ¿ÀÛÇϴ ȯÇüÀÇ ÁÖ¸§À» °¡Áø ÄÚ´ÏÄà ±ÞÀüÈ¥À» °¡Áø Ãà À̵¿ ±×·¹°í¸®¾È ¾ÈÅ׳ª¸¦ °³¹ßÇÏ¿´´Ù. Áß½ÉÃàÀ» ±âÁØÀ¸·Î 1.5¡ÆÁ¤µµ ±â¿ï¾îÁø ºÎ¹Ý»ç°æÀ» ȸÀüÇÏ´Â ¹æ½ÄÀ¸·Î À§¼º À§Ä¡ ÃßÀûÀÌ °¡´ÉÇϵµ·Ï ¼³°èÇÏ¿´À¸¸ç, Ãà À̵¿ ±×·¹°í¸®¾È ¾ÈÅ׳ªÀÇ Áֹݻç°æ, ºÎ¹Ý»ç°æÀÇ °î·ü ¹× ±ÞÀü Áß½ÉÁ¡À» ¾ÈÅ׳ªÀÇ È¿À²ÀÌ ÃÖ´ë°¡ µÇµµ·Ï ÃÖÀûÈÇÏ¿´´Ù. Á¦¾ÈµÈ ¹Ý»ç°æ ¾ÈÅ׳ª´Â 12.2GHz¿¡¼ 33dB(È¿À² : 64%, ÀÌ·ÐÄ¡ : -1dB)ÀÇ À̵æÀ» °¡Áö¸ç ±³Â÷ÆíÆÄ ·¹º§Àº -21dBÀÌÇÏÀÌ´Ù. ±×¸®°í -14dBÀÇ »çÀ̵å·Îºê·¹º§À» Ư¼ºÀ» º¸¿´´Ù. ¶ÇÇÑ Á¦ÀÛµÈ ¾ÈÅ׳ª·Î ¹«±ÃÈ À§¼º¼ö½Å ½ÇÇè¿¡¼ C/Nºñ´Â 19dBÀÓÀ» ½ÇÁ¦ ÃøÁ¤À» ÅëÇÏ¿© È®ÀÎÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In this paper, we propose a Axially displaced ellipse gregorian antenna with conical feed horn operating in Ku-band. For fast searching satellite position, it is designed the sub-reflector rotates about 1.5¡Æ tilted by the central axis. the curvature and feed center of the main-reflector and sub-reflector are optimized to achieve maximum antenna efficiency. The designed reflector antenna shows the gain of 33dB and the cross polarization level of less than -21dB and the side-lobe level of less than £14 dB at 12.2 GHz. and C/N ratio of 19dB is proved by reception experiment of Koreasat with fabricated antenna.
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Å°¿öµå(Keyword) |
Ku¹êµå
µà¾ó ¸ðµå
±ÞÀü È¥
ADE ¾ÈÅ׳ª
¾ÈÅ׳ª È¿À²
Ku-band
Dual mode
Feed Horn
ADE Antenna
Antenna Efficiency
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