David Ricketts

Radio Disruption of Electronic Systems

GOMACTech. Presented at the GOMACTech, Charleston SC.

Scalable Active Metamaterial Cell with integrated gain, compensation and power

2024 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND INC/USNCURSI RADIO SCIENCE MEETING, AP-S/INC-USNC-URSI 2024, pp. 2025–2026.

Sweat-Powered, mm-Scale, Continuous-Time Sensor Systems With Bluetooth Low Energy (BLE) Backscatter

IEEE ACCESS, 12, 190092–190101.

14dB Active Gain Magnetic Negative Permeability Metamaterial Cell with Self-coupling Compensation

Maximum gain enhancement in wireless power transfer using anisotropic metamaterials

Scientific Reports, 13(1).

Teaching 100 remote students hands-on microwave design: Building a 16 QAM radio at home by hand

A Modern 16-QAM Digital Radio You Can Design and Build at Home [Application Notes]

IEEE MICROWAVE MAGAZINE, 21(7), 10–22.

Compact W-Band "Swan Neck" Turnstile Junction Orthomode Transducer Implemented by 3-D Printing

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 68(8), 3408–3417.

The North Carolina State University Rabbit Radar: Build a Frequency-Modulated Continuous-Wave Radar in a Day [Application Notes]

IEEE MICROWAVE MAGAZINE, 21(5), 136–145.

Additive Manufacturing of Complex Millimeter-Wave Waveguides Structures Using Digital Light Processing

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 67(3), 883–895.

Electrical Solitons for Microwave Systems

IEEE MICROWAVE MAGAZINE, 20(4), 123–134.

Improved wireless power transfer efficiency with non-perfect lenses

APPLIED PHYSICS LETTERS, 114(14).

Simple Laminated PCB Artificial Dielectrics for mm-Wave Quasioptical Lenses

3D Printed Coaxial Transmission Line Using Low Loss Dielectric and Liquid Metal Conductor

A 50% Fractional Bandwidth, Wireless Power Communication System Achieving 6.78 Mbps at 13.56 MHz Carrier

Analysis and Comparison of High-Resolution GS/s Samplers in Advanced BiCMOS and CMOS

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 65(5), 532–536.

Analysis and design of high-power and efficient, millimeter-wave power amplifier systems using zero degree combiners

INTERNATIONAL JOURNAL OF ELECTRONICS, 105(1), 1–11.

Dynamic Impedance Matching of Multiple Loads in Wireless Power Transfer using a Genetic Optimization Approach

Accurate De-Embedding and Measurement of Spin-Torque Oscillators

IEEE Transactions on Magnetics, 53(11), 1–4.

Analog limitations for high-speed digital radios: Where the bits stop working

2017 ieee 60th international midwest symposium on circuits and systems (mwscas), 37–40.

Analytical limits to maximum RF performance of spin torque nano-oscillators

Magnetic Field-Based Positioning Systems

IEEE Communications Surveys & Tutorials, 19(3), 2003–2017.

Precision power measurement of spin-torque nano-oscillators using an accurate de-embedding structure and analysis

Rapid prototyping of low loss 3D printed waveguides for millimeter-wave applications

2017 ieee mtt-s international microwave symposium (ims), 41–44.

Resonantly Coupled Wireless Power Transfer for Non-Stationary Loads With Application in Automotive Environments

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 64(1), 91–103.

Smart wireless power: A wireless power and bi-directional LIN communication system

Ultrahigh-Data-Rate Communication and Efficient Wireless Power Transfer at 13.56 MHz

IEEE Antennas and Wireless Propagation Letters, 16, 2634–2637.

A Frequency-Selective Zero-Permeability Metamaterial Shield for Reduction of Near-Field Electromagnetic Energy

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 15, 654–657.

A Versatile mm-wave micromachined anti-reflective layer

2016 asia-pacific microwave conference (apmc2016).

A broadband, compact 140–170GHz double side-band receiver in 90nm SiGe technology

Presented at the 2016 46th European Microwave Conference (EuMC).

A high-power, broadband 245-285 GHz balanced frequency doubler in 45 nm SOI CMOS

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 58(2), 423–426.

A simple electroless plating solution for 3D printed microwave components

2016 asia-pacific microwave conference (apmc2016).

High data-rate communication in near-field RFID and wireless power using higher order modulation

IEEE Transactions on Microwave Theory and Techniques, 64(2), 401–413.

Magnetic Field Enhancement in Wireless Power With Metamaterials and Magnetic Resonant Couplers

IEEE Antennas and Wireless Propagation Letters, 15, 452–455.

Scalable self-assembly process for the fabrication of sub-millimetre three-dimensional cylindrical tubes

MICRO & NANO LETTERS, 11(1), 4–8.

W-band corrugated and non-corrugated conical horn antennas using stereolithography 3D-printing technology

2016 asia-pacific microwave conference (apmc2016).

mm-wave and THz multipliers: Advances and opportunities

2016 asia-pacific microwave conference (apmc2016).

275-285 GHz balanced frequency quadrupler chain in 45 nm SOI CMOS

ELECTRONICS LETTERS, 51(18).

A compact, high linearity 40GS/s track-and-hold amplifier in 90nm SiGe technology

A compact, high-gain Q-band stacked power amplifier in 45nm SOI CMOS with 19.2dBm P-sat and 19% PAE

Ieee topical conference on power amplifiers for wireless and radio, 34–36.

Erratum: “Experimental demonstration of the equivalence of inductive and strongly coupled magnetic resonance wireless power transfer” [Appl. Phys. Lett. 102, 053904 (2013)]

Applied Physics Letters, 107(4), 049901.

Experimental characterization of Fabry-Perot resonances of magnetostatic volume waves in near-field metamaterials

APPLIED PHYSICS LETTERS, 106(6).

Experimental demonstration of the equivalence of inductive and strongly coupled magnetic resonance wireless power transfer (vol 102, 053904, 2013)

Applied Physics Letters, Vol. 107.

Near field wireless power transfer and quadrature amplitude modulated (QAM) communication link

2015 IEEE Wireless Power Transfer Conference (WPTC).

Quadrature amplitude modulated (QAM) communication link for near and mid-range rfid systems

Quadrature amplitude modulated (QAM) communication link for near and mid-range RFID systems. 2015 IEEE International Conference on RFID (RFID), 151–157.

Wide bandwidth for high-speed communication in mid-range, resonant WPT and RFID systems.

2015 European Microwave Conference (EuMC), 147–150.

A COMPACT, 36 TO 72 GHz 15.8 dBm POWER AMPLIFIER WITH 66.7% FRACTIONAL BANDWIDTH IN 45 nm SOI CMOS

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 56(1), 166–169.

A Q-band power amplifier with high-gain pre-driver and 18.7 dBm output power for fully integrated CMOS transmitters

A W-band 21.1 dBm power amplifier with an 8-way zero-degree combiner in 45 nm SOI CMOS

2014 ieee mtt-s international microwave symposium (ims).

A process-technology-scaling-tolerant pipelined ADC architecture achieving 6-bit and 4 GS/s ADC in 45nm CMOS

2014 IEEE 14th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SIRF), 16–18.

Calibrations for Millimeter-Wave Silicon Transistor Characterization

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 62(3), 658–668.

Enhanced accuracy for a complex image theory position estimator using frequency diversity

2014 ieee topical conference on wireless sensors and sensor networks (wisnet), 52–54.

Investigation of tip current and normal force measured simultaneously during local oxidation of titanium using dual-mode scanning probe microscopy

MICRO & NANO LETTERS, 9(5), 332–336.

Low-frequency metamaterial permeability retrieval for near-field applications

2014 ieee antennas and propagation society international symposium (apsursi), 233–234.

Optimization of WPT efficiency using a conjugate load in non-impedance matched systems

2014 ieee antennas and propagation society international symposium (apsursi), 645–646.

Resonantly-coupled wireless powered seat locomotion in automotive applications

The effects of magneto-static resonances in metamaterials on the quality factor of coils in near field applications

2014 ieee antennas and propagation society international symposium (apsursi), 426–427.

Three-Dimensional Position and Orientation Measurements Using Magneto-Quasistatic Fields and Complex Image Theory

IEEE ANTENNAS AND PROPAGATION MAGAZINE, 56(1), 160–173.

Tri-Loop Impedance and Frequency Matching With High-Q Resonators in Wireless Power Transfer

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 13, 341–344.

74 GHz, 17.2 dBm power amplifier in 45 nm SOI CMOS

ELECTRONICS LETTERS, 49(12), 758-+.

A 0.7W fully integrated 42GHz power amplifier with 10% PAE in 0.13µm SiGe BiCMOS

2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers. Presented at the 2013 IEEE International Solid-State Circuits Conference (ISSCC 2013).

A 4GHz-bandwidth op-amp-free track-and-hold and 6-bit flash ADC in 45nm SOI CMOS

A transmission line based resistance compression network (TRCN) for microwave applications

2013 IEEE MTT-S International Microwave Symposium Digest (MTT), 1–3.

An AFM/STM multi-mode nanofabrication approach allowing in situ surface modification and characterisation

MICRO & NANO LETTERS, 8(1), 43–46.

An Efficient, Watt-Level Microwave Rectifier Using an Impedance Compression Network (ICN) With Applications in Outphasing Energy Recovery Systems

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 23(10), 542–544.

An active position sensing tag for sports visualization in American football

Calibration-Kit Design for Millimeter-Wave Silicon Integrated Circuits

IEEE Transactions on Microwave Theory and Techniques, 61(7), 2685–2694.

Erratum: “Experimental demonstration of the equivalence of inductive and strongly coupled magnetic resonance wireless power transfer” [Appl. Phys. Lett. 102, 053904 (2013)]

Applied Physics Letters, 102(14), 149902.

Experimental demonstration of complex image theory for vertical magnetic dipoles with applications to remote sensing and position tracking

Experimental demonstration of the equivalence of inductive and strongly coupled magnetic resonance wireless power transfer

APPLIED PHYSICS LETTERS, 102(5).

Loss minimisation in lambda/4 impedance transformers using multiple lambda/4 segments

ELECTRONICS LETTERS, 49(4), 274–276.

Magneto-quasistatic tracking of an American football: A goal-line measurement

IEEE Antennas and Propagation Magazine, 55(1), 137–146.

Measurement of ultra-low power oscillators using adaptive drift cancellation with applications to nano-magnetic spin torque oscillators

REVIEW OF SCIENTIFIC INSTRUMENTS, 84(5).

On the efficient wireless power transfer in resonant multi-receiver systems

2013 ieee international symposium on circuits and systems (iscas), 2779–2782.

Optimization of wireless power transfer for mobile receivers using automatic digital capacitance tuning

2013 european microwave conference (eumc), 515–518.

Passive Magnetoquasistatic Position Measurement Using Coupled Magnetic Resonances

IEEE Antennas and Wireless Propagation Letters, 12, 539–542.

Passive orientation measurement using magnetoquasistatic fields and coupled magnetic resonances

Electronics Letters, 49(16), 999–1001.

A dispersion-tapered reflection soliton oscillator

2012 IEEE/MTT-S International Microwave Symposium Digest, 1–3.

Analysis and Modeling of Capacitive Power Transfer in Microsystems

IEEE Transactions on Circuits and Systems I: Regular Papers, 59(7), 1557–1566.

Deviation from exponential decay for spin waves excited with a coplanar waveguide antenna

Applied Physics Letters, 101(25), 252409.

Error Reduction in Magnetoquasistatic Positioning Using Orthogonal Emitter Measurements

IEEE Antennas and Wireless Propagation Letters, 11, 1462–1465.

Experimental Study of the Variation in Oscillation Characteristics of Point-Contact-Based Spin-Torque Oscillators

IEEE Magnetics Letters, 3, 3000504–3000504.

Experimental study on the effects of groups of people on magnetoquasistatic positioning accuracy

Frequency scaling of power reclamation networks in outphasing PA architectures

In situ quantification of electrical isolation in STM-fabricated TiOx nanostructures

Micro & Nano Letters, 7(4), 334.

Magnetic resonant wireless power delivery for distributed sensor and wireless systems

Wireless orientation sensing using magnetoquasistatic fields and complex image theory

A Q-band SiGe power amplifier with 17.5 dBm saturated output power and 26% peak PAE

2011 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, 146–149.

Electrostatic actuation and control of micro robots using a post-processed high-voltage SOI CMOS chip

2011 IEEE International Symposium of Circuits and Systems (ISCAS), 2509–2512.

Green’s function for magnetostatic surface waves and its application to the study of diffraction patterns

Physical Review B, 84(6).

Higher order loop corrections for short range magnetoquasistatic position tracking

Proximity and Orientation Sensing Using Magnetoquasistatic Fields and Complex Image Theory

Two-dimensional position measurement using magnetoquasistatic fields

An 8.6GHz 42ps pulse-width electrical mode-locked oscillator

Characterization of Conducting Atomic Force Microscopy for Use With Magnetic Tunnel Junctions

IEEE Transactions on Magnetics, 46(6), 1741–1744.

Enhancing CMOS Using Nanoelectronic Devices: A Perspective on Hybrid Integrated Systems

Proceedings of the IEEE, 98(12), 2061–2075.

Reflection Soliton Oscillator

IEEE Transactions on Microwave Theory and Techniques, 57(10), 2344–2353.

Spin transfer torque switching of magnetic tunnel junctions using a conductive atomic force microscope

Applied Physics Letters, 95(13), 132510.

On the Self-Generation of Electrical Soliton Pulses

IEEE Journal of Solid-State Circuits, 42(8), 1657–1668.

A chip-scale electrical soliton modelocked oscillator

Electrical soliton oscillator

IEEE Transactions on Microwave Theory and Techniques, 54(1), 373–382.

Ordered and chaotic electrical solitons: communication perspectives

IEEE Communications Magazine, 44(12), 126–135.

Passive&Active Control of Regenerative Standing&Soliton Waves

IEEE Custom Integrated Circuits Conference 2006, 29–36.

Taming Electrical Solitons A New Direction in Picosecond Electronics

IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2006, 21–24.

A self-sustained electrical soliton oscillator

High-speed integrated nanowire circuits

Nature, 434(7037), 1085–1085.