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LOW VOLTAGE TUNABLE BAND PASS FILTERS USING BARIUM STRONTIUM TITANATE PARALLEL PLATE CAPACITORS
Journal article   Peer reviewed

LOW VOLTAGE TUNABLE BAND PASS FILTERS USING BARIUM STRONTIUM TITANATE PARALLEL PLATE CAPACITORS

T. S Kalkur, N. M SBROCKEY, G. S TOMPA, PAMIR ALPAY, J. E SPANIER, E. M GALOW and M. W COLE
Integrated ferroelectrics, v 112(1)
15 Jun 2010

Abstract

In this paper, we report the results of third order combline inter-digited band pass filters implemented with parallel plate barium strontium titanate (BST) capacitors on sapphire substrates with platinum electrodes. The frequency characteristics of the filters were simulated using Sonnet software package. The resonators were implemented on FR-4 substrates using a LPKF rapid prototyping machine. The resonators were loaded with BST capacitors prepared on sapphire substrates by metalorganic decomposition (MOD). The measured center frequency of the filters was 1.35 GHz with a 3 db bandwidth of 0.15 GHz for zero bias voltage to the ferroelectric capacitors. The center frequency can be tuned from 1.35 GHz to1.45 GHz for an applied tuning voltage of 3 Volts.

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Electrical & Electronic
Physics, Applied
Physics, Condensed Matter
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