Title :
Elevated-CPW for high-speed digital interconnects
Author :
Jeong, S.-H. ; Yoon, S.-J. ; Yook, J.-G. ; Lee, S.-G. ; Kim, Y.-J.
Author_Institution :
Dept of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
An elevated coplanar waveguide is one in which the signal line is elevated. An elevated-CPW (ECPW) with low loss and low dispersion characteristics is proposed for high-speed digital circuits and its performance is predicted by theoretical analysis. The ECPW is simulated with FDTD and is fabricated as a 10 /spl mu/m elevated CPW using thick film micromachining technology and a polymide buffer layer. An ECPW has 10 dB lower insertion loss than the conventional CPW, and the effective permittivity is in the range of 1 to 3. Characteristic impedances and effective permittivity are given for various geometrical parameters.
Keywords :
coplanar waveguides; digital communication; dispersion (wave); electric impedance; finite difference time-domain analysis; micromachining; permittivity; 10 micron; CPW; FDTD; characteristic impedance; coplanar waveguide; effective permittivity; elevated-CPW; high-speed digital interconnects; insertion loss; low dispersion characteristics; low loss characteristics; thick film MEMS process; Circuit simulation; Coplanar waveguides; Digital circuits; Finite difference methods; Integrated circuit interconnections; Performance analysis; Performance loss; Permittivity; Thick films; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.960154
