Novel via-less double-sided parallel strip line to coplanar waveguide transition

New design of double-sided parallel strip line to coplanar waveguide transition is proposed in this article. The via-less structure gives convenience to the design and implement of the transition. A demonstration back-to-back transition circuit is designed and fabricated. Simulated and measured results are presented and show good agreement. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1717–1718, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21755