http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : In-SeokHwang (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
설우석,김삼동,이성대,강태신,DanAn,전영훈,In-SeokHwang,이진구,Ki-HyunRyu 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.43 No.6
A variety of three-dimensional (3-D) transmission line structures were fabricated using lowdielectric- constant benzocyclobutene (BCB) interlayers to achieve low characteristic impedances (Zo) at millimeter wave frequencies. The eects of structural variations on the Zo of the transmission line structures were examined at a frequency of 50 GHz. Two dierent 3-D coplanar waveguide (CPW) structures, the bottom-ground and the double-ground structures, showed very low Zo values of 7.3 and 9.4 , respectively, at a signal linewidth of 100 m and a bottom-ground spacing of 20 m. When the ratio of the spacing of bottom-ground width to the signal linewidth became greater than 2.5, the Zo was nearly saturated, showing a minimum Zo. The thin-lm microstrip lines fabricated using the BCB inter layers showed a higher minimum Zo of 25.5 at a ground plane width of 55 m and a signal linewidth of 35 m than the 3-D CPW structures did. Among the 3-D transmission structures, the bottom-ground CPW was shown to be the most ecient structure to achieve a low Zo by maximizing the capacitance between the signal and the ground lines at 50 GHz. A variety of three-dimensional (3-D) transmission line structures were fabricated using lowdielectric-constant benzocyclobutene (BCB) interlayers to achieve low characteristic impedances(Zo) at millimeter wave frequencies. The eects of structural variations on the Zo of the transmissionline structures were examined at a frequency of 50 GHz. Two dierent 3-D coplanar waveguide(CPW) structures, the bottom-ground and the double-ground structures, showed very low Zo valuesof 7.3 and 9.4, respectively, at a signal linewidth of 100 m and a bottom-ground spacingof 20 m. When the ratio of the spacing of bottom-ground width to the signal linewidth becamegreater than 2.5, the Zo was nearly saturated, showing a minimum Zo. The thin-lm microstriplines fabricated using the BCB inter layers showed a higher minimum Zo of 25.5at a groundplane width of 55 m and a signal linewidth of 35 m than the 3-D CPW structures did. Among the3-D transmission structures, the bottom-ground CPW was shown to be the most ecient structureto achieve a low Zo by maximizing the capacitance between the signal and the ground lines at 50GHz.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
