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Search Publications by: Aaron Hagerstrom (Fed)

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Displaying 26 - 37 of 37

Targeted chemical pressure yields tuneable millimetre-wave dielectric

December 23, 2019
Author(s)
Natalie M. Dawley, Eric J. Marksz, Aaron Hagerstrom, Gerhard H. Olsen, Megan E. Holtz, Jingshu Zhang, Chris Long, Craig Fennie, David A. Muller, Darrell G. Schlom, James Booth, Nate Orloff
Tunable dielectrics are key constituents for emerging high-frequency devices in telecommunications—including tunable filters, phase shifters, and baluns—and for miniaturizing frequency-agile microwave and millimeter-wave components. Today, strained films

Determining Carbon Fiber Composite Loading by Flip-Chip on a Coplanar Waveguide to 110GHz

November 22, 2018
Author(s)
Nina P. Basta, Jasper A. Drisko, Aaron M. Hagerstrom, Joshua A. Orlicki, Jennifer M. Sietins, Daniel B. Knorr, Jr., Edward J. Garboczi, Christian J. Long, Nathan D. Orloff
The electrical properties of materials are a necessary part of any circuit design. As applications at millimeter-wave frequen-cies increase, there is a growing need to develop new materials with low loss and multiple functionalities. Unfortunately, many

Determining Carbon Fiber Composite Loading with Flip-Chip Measurements to 110 GHz

September 1, 2018
Author(s)
Nina P. Basta, Aaron Hagerstrom, Jasper A. Drisko, James Booth, Edward Garboczi, Christian Long, Nathan Orloff
— Electrical properties of materials are a necessary part of any circuit design. With emerging applications at millimeter- wave frequencies, there is a need to characterize new materials before they come to market. At frequencies below about 67 GHz, it is

Sub-nanosecond Tuning of Microwave Resonators Fabricated on Ruddlesden-Popper Dielectric Thin Films

July 9, 2018
Author(s)
Aaron M. Hagerstrom, Xifeng Lu, Natalie Dawley, H. Nair, Jordi Mateu, Robert D. Horansky, Charles A. Little, James C. Booth, Christian J. Long
Voltage-tunable dielectric materials are widely used for microwave-frequency signal processing. Among tunable dielectric thin films, (SrTiO3)nSrO Ruddlesden-Popper (RP) superlattices have exceptionally low loss at high frequencies. This paper reports the

Characterization of Transmission Lines with Nonlinear Dielectric Materials

November 28, 2017
Author(s)
Aaron M. Hagerstrom, Christian J. Long, Nathan D. Orloff, James C. Booth, Eric J. Marksz
Nonlinear transmission lines are interesting for two broad reasons: first, they have several direct device applications (i.e. harmonic generation, and phase shifters), and second, they provide a way to characterize nonlinear materials at mm-wave