Tunable electromagnetic bandgap structures based on ferroelectric films
Paper i proceeding, 2003

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.

Equivalent circuits


Strontium compounds



Coating techniques

Computer simulation

Energy gap

Ferroelectric materials


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 (ISSN)

Vol. 4 879-882


Elektroteknik och elektronik