Vertical microstrip transition for multilayer microwave circuits with decoupled passive and active layers

• Published in: IEEE microwave and wireless components letters 2006-07, Vol.16 (7), p.401-403
• Main Authors: Casares-Miranda, F.P., Viereck, C., Camacho-Penalosa, C., Caloz, C.
• Format: Article
• Language: English
• Subjects: Analogies; Applied sciences; Broadband; Circuit properties; Coaxial components; Discontinuity; Distributed parameter circuits; Electric, optical and optoelectronic circuits; Electronic circuits; Electronics; Exact sciences and technology; Fabrication; Insertion loss; Integrated circuit interconnections; Local oscillator to radio frequency (LO-to-RF) leakage reduction; Microstrip; microstrip transitions; Microwave circuits; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits; Microwaves; Mixers; multilayer circuits; Multilayers; Nonhomogeneous media; Oscillators; Oscillators, resonators, synthetizers; Radio frequency; Signal convertors; Transmission line discontinuities
• ISSN: 1531-1309; 2771-957X; 1558-1764; 2771-9588
• DOI: 10.1109/LMWC.2006.877144

A novel broadband (including dc) microstrip-to-microstrip vertical transition for multilayer microwave circuits is proposed. This transition solves the problem of the discontinuity typically appearing in via hole transitions between two microstrip transmission lines in different layers. An analogy existing between this transition and a rectangular coaxial line is discussed. A parametric study alongside with the experimental results of the transition are presented. Reduction of local oscillator to radio frequency leakage in a mixer with this transition is demonstrated