Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Jeffrey S. Walling"'
Autor:
Kyle Holzer, Jeffrey S. Walling
Publikováno v:
The Journal of Engineering (2015)
Integration of a class-E power amplifier (PA) and a thin-film bulk acoustic wave resonator (FBAR) filter is shown to provide high power added efficiency in addition to superior out-of-band spectrum suppression. A discrete gallium arsenide pseudomorph
Externí odkaz:
https://doaj.org/article/658b429513314e16afa31b235eb619e9
Publikováno v:
IEEE Journal of Solid-State Circuits. 56:3547-3550
This Special Issue of the IEEE Journal of Solid-State Circuits is dedicated to a collection of the best papers selected from the 2021 IEEE International Solid-State Circuits Conference (ISSCC) that took place on February 13-22, 2021, virtually. This
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 68:1855-1868
This paper demonstrates a wideband 2.4 GHz $2\times 9$ -bit Cartesian radio-frequency digital-to-analog converter (RFDAC). Active-under-coil integration is introduced in the physical implementation, where all key active circuitry is located underneat
Publikováno v:
IEEE Sensors Journal. 21:1294-1304
In this paper an ultra-low power, integrated pulse width modulated (PWM) temperature sensor is presented. The PWM temperature output is generated by the comparing a temperature dependent voltage with another voltage which is temperature independent.
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 68:1983-1994
This article presents a digitally frequency-tunable switched-capacitor power amplifier (SCPA) in 65-nm CMOS. The operable frequency range spans from 1.4 to 2.5 GHz. The center frequency is tuned by a programmable capacitor array, widely available fro
Publikováno v:
VLSI Circuits
The paper proposes an RFDAC based on an edge-combining (EC) switched-capacitor power amplifier (SCPA) that triples its clock frequency directly in the output stage to enable a near-mm-wave operation. Another edge-combining based frequency-tripling DL
Publikováno v:
ISCAS
The CMOS switched-capacitor power amplifier (SCPA) proposed in 2011 [1]-[2] achieved much higher system efficiency than conventional transmitter architectures. In this paper, SCPA linearity is also analyzed and improved with new techniques. Specifica
Autor:
Jeffrey S. Walling, Kyle D. Holzer
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 66:1431-1441
In this paper, we present a new 1-to-N way ring combiner that is an adaptation of the ring-hybrid (rat-race) structure. We present the general design guidelines for N-way planar ring combiners based on theoretical analysis of the structures. The prop
Publikováno v:
ISSCC
Digital transmitters (DTX) or digital power amplifiers (DPA) based on RF digital-to-analog converters (DAC) are optimal for wireless transmitters in CMOS due to the small chip area, low power consumption, and ability to evolve with scaling of the tra
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 65:2715-2725
In this paper a wideband, high-power amplifier that achieves an output power of 20 W with a bandwidth greater than one octave in the L and S bands is presented. Two ~10 W Class AB PAs are implemented with Gallium Nitride-high electron mobility transi