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Tunable electromagnetic bandgap structures based on ferroelectric films

Dan Kuylenstierna (Institutionen för mikroelektronik och nanovetenskap) ; Andrei Vorobiev (Institutionen för mikroelektronik och nanovetenskap) ; G. Subramanyam ; Spartak Gevorgian (Institutionen för mikroelektronik och nanovetenskap)
2003 IEEE International Antennas and Propagation Symposium and USNC/CNC/URSI North American Radio Science Meeting, Jun 22-27 2003 (0272-4693). Vol. 4 (2003), p. 879-882.
[Konferensbidrag, refereegranskat]

This work reports on an experimental tunable electromagnetic bandgap array based on SrTiO3(STO) films grown on a Pt coated silicon substrate. The structure, that is a periodically loaded Coplanar Waveguide (CPW), has its first rejection band between 30 and 40 GHz. Without DC bias the center of the rejection band is at 35.5 GHz and the insertion loss is 38 dB. At applied 20 V DC bias the center frequency tunes and about 4% due to the change in dielectric constant of STO.

Nyckelord: Energy gap, Strontium compounds, Platinum, Coating techniques, Substrates, Waveguides, Equivalent circuits, Computer simulation, Ferroelectric materials

Denna post skapades 2006-08-29. Senast ändrad 2014-09-02.
CPL Pubid: 11867


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Institutioner (Chalmers)

Institutionen för mikroelektronik och nanovetenskap (1900-2003)


Elektroteknik och elektronik

Chalmers infrastruktur