Abstract
In this article, we present the design and the measurement of two hybrid couplers for millimeter-wave applications realized in the BiCMOS9MW 130nm process (ST Microelectronics). The aim is to demonstrate several miniaturization possibilities of a conventional branchline coupler while maintaining a constant 90° phase shift and a low insertion loss over the full 57–66-GHz band. The first miniaturized coupler is composed of meandered transmission lines; the second is a quasi-lumped quadrature coupler with discrete capacitors. The performance of these circuits is compared with the most recent on-chip 60-GHz couplers. We especially demonstrate the possibility to achieve state-of-the-art performance while using miniaturization techniques. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2221–2223, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27079
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call