Title :
A Compact and Low-Radiation CPW Probe Pad Using CBCPW-to-Microstrip Transitions for V-Band LTCC Applications
Author :
Lee, Young Chul ; Park, Chul Soon
Author_Institution :
Mokpo Nat. Maritime Univ., Mokpo
Abstract :
In this paper, a compact and low-radiation coplanar waveguide lines (CPW) probe pad using vialess conductor-backed coplanar waveguide (CBCPW)-to-microstrip transitions is presented for V-band low-temperature cofired ceramic (LTCC) applications. To reduce the radiation loss due to open-end and transition discontinuities, a vialess CBCPW structure with a edge cut back is proposed. The back pad and an optimum transition length suppress the radiation loss of the standard CPW probe pad by 30% and 10%, respectively, compared to a conventional vialess transition. In particular, at 66 GHz, radiation is completely suppressed for the proposed transition and its insertion loss is 0.15 dB at that frequency.
Keywords :
ceramics; coplanar waveguide components; firing (materials); losses; microstrip discontinuities; microstrip transitions; millimetre wave integrated circuits; system-in-package; V-band low-temperature cofired ceramic applications; back pad; coplanar waveguide-to-microstrip transitions; frequency 66 GHz; gain 15 dB; insertion loss; low-radiation coplanar waveguide lines probe pad; open-end discontinuities; optimum transition length; radiation loss reduction; system-in-package technology; transition discontinuities; Ceramics; Coplanar waveguides; Frequency; Integrated circuit technology; Microstrip; Millimeter wave communication; Millimeter wave technology; Planar waveguides; Probes; Waveguide transitions; Coplanar waveguide lines (CPW); low-temperature cofired ceramic (LTCC); microstrip; transition;
Journal_Title :
Advanced Packaging, IEEE Transactions on
DOI :
10.1109/TADVP.2007.898524
