We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Compact Wideband Coplanar Stripline-to-Microstrip Line Transition Using a Bended Structure on a Two-Layered Substrate.
- Authors
Lee, Gwan Hui; Mohyuddin, Wahab; Kumar, Sachin; Choi, Hyun Chul; Kim, Kang Wook
- Abstract
A design of a compact coplanar strip (CPS)-to-microstrip line (MSL) transition using a bended structure on a two-layered substrate is presented. The proposed transition consists of a CPS taper and a bended CPS-to-MSL transition on a two-layered substrate. The CPS taper is formed on the lower substrate with low permittivity (εr = 3.38), and the bended CPS-to-MSL transition is formed on the upper substrate with high permittivity (εr = 10.2). The proposed transition is designed with analytical formulas obtained by applying EM-based conformal mapping without parametric tuning trials. The conductor shape of the bended CPS-to-MSL transition is adjusted to form an optimal Klopfenstein impedance taper. The proposed CPS-to-MSL transition optimally connects between a high impedance CPS line (~160 Ω) and a 50 Ω MSL, which typically results in a long transition length for ultra-wideband performance. The implemented transition bended in a sinusoid shape on the two-layered substrate provides good performance from 2 GHz to 17 GHz with the maximum 2 dB insertion loss per transition, and the horizontal length of the bended transition is reduced to 42.9% of the straight transition length. This bended transition is developed for use in mm-wave balanced antenna/detector feeds but can be applied to a variety of wideband balanced circuit modules, where compact circuit size is critical.
- Subjects
CONFORMAL mapping; CIRCUIT complexity; INSERTION loss (Telecommunication); PERMITTIVITY
- Publication
Electronics (2079-9292), 2021, Vol 10, Issue 11, p1272
- ISSN
2079-9292
- Publication type
Article
- DOI
10.3390/electronics10111272