High-performance low-cost phase-shifter design based on ferroelectric materials technology

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High-performance low-cost phase-shifter design based on ferroelectric materials technology

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Published

A novel approach to ferroelectric phase-shifter design using BaxSr1-xTiO3 (BSTO) films in a multilayer dielectric coplanar waveguide structure is described. By including a low-loss dielectric layer (SiO2) between the coplanar waveguide conductors and a layer of ferroelectric materials, significant reduction in insertion loss can be achieved in conjunction with a threefold increase in figure of merit (°/dB).

Inspec keywords: multilayers; dielectric waveguides; microwave phase shifters; dielectric losses; ferroelectric devices; coplanar waveguides; strontium compounds; barium compounds

Other keywords: SiO2; low-loss dielectric layer; ferroelectric materials technology; figure of merit; BaSrTiO3; ferroelectric phase-shifter design; ferroelectric materials; insertion loss; multilayer dielectric coplanar waveguide structure; BaxSr1-xTiO3 films; coplanar waveguide conductors

Subjects: Other analogue circuits; Waveguide and microwave transmission line components; Waveguides and microwave transmission lines; Solid-state microwave circuits and devices; Piezoelectric and ferroelectric materials; Ferroelectric devices

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