Multimode Coplanar Waveguide Cross-Junction: Equivalent Circuit Model and Air-Bridge Free Applications
| Autor: | Amr M. E. Safwat, Abdelhamid M. H. Nasr |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Operating point Radiation Multi-mode optical fiber business.industry Coplanar waveguide 020208 electrical & electronic engineering 020206 networking & telecommunications 02 engineering and technology Condensed Matter Physics Topology Balun 0202 electrical engineering electronic engineering information engineering Electronic engineering Equivalent circuit Power dividers and directional couplers Wilkinson power divider Electrical and Electronic Engineering business Electrical impedance |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 65:3753-3760 |
| ISSN: | 1557-9670 0018-9480 |
| DOI: | 10.1109/tmtt.2017.2699646 |
| Popis: | This paper proposes the use of the coplanar waveguide (CPW) odd mode, also known as the parasitic slotline mode, as a design parameter. It presents a novel equivalent circuit model for the CPW cross-junction, where each CPW has two modes: the even mode, which is the conventional CPW mode also known as the coplanar mode, and the odd mode. The model is simple, intuitive, and physical-based. It can be used in different combinations including the case of slotline cross-junction. The model paves the way to design novel air-bridge free CPW applications. Among them, two are presented in this paper: CPW-to-slotline transition (balun) and Wilkinson power divider. For both applications, closed form expressions for the operating point are derived. Results are verified by EM simulations. An air-bridge free CPW power divider that combines both applications is fabricated and characterized. Simulations and measurements are in a very good agreement. |
| Databáze: | OpenAIRE |
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