Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Zachariah Boynton"'
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 67:271-283
Implementing flexible, software-defined duplexing transceivers remains challenging due to the inherent self-interference from TX to RX that requires cancellation in the RF/analog domain. Previously, we presented a novel, duplexing, integrated, single
Autor:
Oscar Castaneda, Seyed Hadi Mirfarshbafan, Christoph Studer, Jamie C. Ye, Alyosha Molnar, Shimin Huang, Zachariah Boynton
Publikováno v:
ESSCIRC
ESSCIRC 2021-IEEE 47th European Solid State Circuits Conference (ESSCIRC)
ESSCIRC 2021-IEEE 47th European Solid State Circuits Conference (ESSCIRC)
All-digital millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO) receivers enable extreme data rates but require high power consumption. In order to reduce power consumption, this paper presents the first resolution-ad
Autor:
Zachariah Boynton, Alyosha Molnar
Publikováno v:
2020 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
This paper presents a frequency tunable, high dynamic range 65nm bulk CMOS downconverter operating from 9-31GHz. The design implements a topology variation of a 4 phase passive mixer which allows for sinusoidal LO drive and achieves a minimum NF of 1
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 65:1481-1494
As passive mixers (N-path filters) are being used more frequently and in more applications, it becomes increasingly important to understand how various non-idealities affect the performance of passive mixer circuits. One such non-ideality is perturba
Publikováno v:
ACSSC
Here we present a combined RF hardware/DSP technique to synthesize effective channel diversity in single-antenna wireless systems. This allows digital suppression of out-of-band interference artifacts in widely tunable wireless receivers with one or
Publikováno v:
2018 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
A highly-integrated dual technology (28nm and 130nm SOI) widely tunable software-defined RF duplexing front-end for FDD, FD, and TDD applications is presented. Predistortion and harmonic upconversion are used to cancel second and third harmonics gene
Autor:
Thomas Tapen, Emory Enroth, Alyssa B. Apsel, Hazal Yuksel, Alyosha Molnar, Zachariah Boynton, Dong Yang
Publikováno v:
ICECS
Software defined radios (SDR) capable of supporting a wide range of legacy and future systems must be compatible with frequency division duplex (FDD) operation. We have recently demonstrated an FDD capable, integrated SDR (SD-FDD) that achieves >25dB
Autor:
Dong Yang, Hazal Yuksel, Alyssa B. Apsel, Zachariah Boynton, Emory Enroth, Mashrur Mohiuddin, Alyosha Molnar, Thomas Tappen
Publikováno v:
ISCAS
Recent advances in reconfigurable RF front end circuits, such as passive mixer first receivers have opened the door to the possibility of building radios that can be programmed to both transmit and receive across octaves of frequency while maintainin
Autor:
Alyosha Molnar, Changhyuk Lee, Hazal Yuksel, Alyssa B. Apsel, Zachariah Boynton, Christopher Newman, Dong Yang, Pedrone Miles C, Noman A. Paya
Publikováno v:
2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
An ideal Software Defined Radio (SDR) requires a reconfigurable, intergrated, widely-frequency-tunable transceiver able to support different RX/TX duplex schemes. Here we present an integrated transceiver capable of supporting both TDD and FDD operat
Publikováno v:
IEEE Electron Device Letters. 35:998-1000
The noise performance of an InP BiCMOS process is presented. The process builds on IBM 90-nm RF CMOS and features heterogeneously integrated 250-nm InP DHBTs with f t /fmax values of ~300 GHz. Noise models have been extracted and the predicted perfor