Vrinda Haridasan

Works (5)

Updated: July 5th, 2023 15:50

2012 journal article

Scaling Issues in Ferroelectric Barium Strontium Titanate Tunable Planar Capacitors

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 59(2), 198–204.

By: P. Lam n, V. Haridasan n, Z. Feng n, M. Steer n, A. Kingon n & J. Maria n

author keywords: Capacitance; Capacitors; Barium; Strontium; Titanium compounds; Electrodes; Substrates
TL;DR: The geometric limits associated with tunability of interdigitated capacitors are reported, specifically regarding the impact of a parasitic non-tunable component that necessarily accompanies a ferroelectric surface capacitor, and can dominate the voltage-dependent response as capacitor dimensions are reduced to achieve the small capacitance values required for impedance matching in the X band. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2011 journal article

Tunable ferroelectric microwave bandpass filters optimised for system-level integration

IET MICROWAVES ANTENNAS & PROPAGATION, 5(10), 1234–1241.

By: V. Haridasan n, P. Lam n, Z. Feng n, W. Fathelbab *, J. Maria n, A. Kingon*, M. Steer n

Source: Web Of Science
Added: August 6, 2018

2009 article

Narrowband Barium Strontium Titanate (BST) Tunable Bandpass Filters at X-band

2009 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, VOLS 1-3, pp. 1061-+.

By: Z. Feng n, W. Fathelbab *, P. Lam n, V. Haridasan n, J. Maria  n, A. Kingon *, M. Steer n

author keywords: Barium Strontium Titanate; ferroelectrics; tunable combline filter; interdigitated capacitors
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Source: Web Of Science
Added: August 6, 2018

2009 journal article

The Impact of Metallization Thickness and Geometry for X-Band Tunable Microwave Filters

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 56(5), 906–911.

By: P. Lam n, Z. Feng n, V. Haridasan n, A. Kingon n, M. Steer n & J. Maria n

TL;DR: It is shown through experiment and simulation that short distances of thin metallization can be tolerated provided that they are located in regions where the resonant microwave current is low and the trend of loss with thickness indicates diminishing return with additional metal. (via Semantic Scholar)
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Added: August 6, 2018

conference paper

A 6.2-7.5 GHz tunable bandpass filter with integrated barium strontium titanate (BST) interdigitated varactors utilizing silver/copper metallization

Feng, Z. P., Fathelbab, W. M., Lam, P. G., Haridasan, V., Maria, J., Kingon, A. I., & Steer, M. B. Rws: 2009 ieee radio and wireless symposium, 607–610.

By: Z. Feng, W. Fathelbab, P. Lam, V. Haridasan, J. Maria, A. Kingon, M. Steer

Source: NC State University Libraries
Added: August 6, 2018

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