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- Gevorgian, Spartak, 1948, et al.
(author)
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Electrically Controlled HTSC/Ferroelectric Coplanar Waveguide
- 1994
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In: Microwave and Optical Technology Letters. - : Institution of Engineering and Technology (IET). - 1098-2760 .- 0895-2477. ; 141:6, s. 501 - 503
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Journal article (peer-reviewed)abstract
- It is shown that in an integrated YBa2Cu3O7SrTiO3 structure coplanar waveguide (CPW) electrical control of microwave propagation characteristics is possible. Microwave losses of less than 0.2 dB/cm at 10 GHz can be achieved at liquid nitrogen temperatures, provided ferroelectric films with perfect crystalline structures are used. Electrically controlled changes in effective dielectric permittivity of more than 40% are predicted at 77 K and 10 GHz. Sections of these CPWs can be used in electrically controlled phase shifters and resonators.
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