Bandpass class-F power amplifier based on multifunction hybrid cavity–microstrip filter

QY Guo, XY Zhang, JX Xu, YC Li… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
This brief presents a filter-integrated high-efficiency class-F power amplifier (PA). The hybrid
cavity-microstrip filtering circuit is employed not only to realize output impedance matching …

A fully parallel architecture for designing frequency-agile and real-time reconfigurable FPGA-based RF digital transmitters

DC Dinis, RF Cordeiro, ASR Oliveira… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
Real-time frequency agility is one of the key limitations of current all-digital transmitters
(ADTs). In this paper, to address this problem, an ADT based on direct-RF generation is …

Agile single-and dual-band all-digital transmitter based on a precompensated tunable delta–sigma modulator

DC Dinis, RF Cordeiro, FM Barradas… - IEEE Transactions …, 2016 - ieeexplore.ieee.org
In this paper, a new architecture for designing tunable single-and dual-band radio-frequency
fully digital transmitters is proposed and validated. The proposed architecture excels the …

Wideband Delta-Sigma Radio-over-Fiber Embedding Complex-Valued Pulse-Distortion Model for 5G and Beyond

M Tanio, D Ogasahara, N Ishii, K Muraoka - IEEE Access, 2024 - ieeexplore.ieee.org
We propose a wideband model-embedding delta-sigma radio-over-fiber (DS-RoF) design
for keeping the adjacent channel leakage low. This RoF design is derived on the basis of the …

An agile LUT-based all-digital transmitter

J Yang, SY Yang, ZH Chen… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In all-digital transmitters (ADTs), delta-sigma modulation (DSM) is the most popular
encoding method. However, implementing DSM-ADT on a field-programmable gate array …

VbPWM-Based ADT: An Iterative Deduction Approach Restricting the Traversal of MPWM at the Cost of In-Band SNR

Y Xian, K Gao, S Ma, K Li… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Based on the concept of mapping-based pulse width modulation (MPWM), the look-up-table-
based all-digital transmitter (LUT-based ADT) achieves high signal-to-noise ratio (SNR) and …

Characteristics of the small bowel lesions detected by capsule endoscopy in patients with chronic kidney disease

H Kawamura, E Sakai, H Endo… - Gastroenterology …, 2013 - Wiley Online Library
Obscure gastrointestinal bleeding (OGIB) is one of the common complications in patients
with chronic kidney disease (CKD), especially those who are on maintenance hemodialysis …

Equivalent complex baseband model for digital transmitters based on 1-bit quadrature pulse encoding

H Ruotsalainen, N Leder, B Pichler… - … on Circuits and …, 2015 - ieeexplore.ieee.org
In this paper an equivalent complex baseband representation of the analog component
related non-linearity of digital transmitters relying on 1-bit complex baseband encoding is …

Tunable delta-sigma modulator for agile all-digital transmitters

DC Dinis, RF Cordeiro, ASR Oliveira… - 2016 IEEE MTT-S …, 2016 - ieeexplore.ieee.org
Fully digital transmitters have been thoroughly explored over the last few years to develop a
novel type of agile, reconfigurable, multi-band, multi-standard and highly-efficient …

Analysis predicted location of harmonic distortion in RF upconverter structure

S Sirmayanti - … Telecommunication, Computing, Electronics …, 2018 - repository.poliupg.ac.id
2017 4th International Conference on Electrical Engineering, Computer Science and
Informatics (EECSI 2017) will be held on September 19-21, 2017 in Yogyakarta, Indonesia …