Kari Stadius
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View article: Analysis and Design of mmWave Passive CMOS Circulators With Unequal Port Impedances
Analysis and Design of mmWave Passive CMOS Circulators With Unequal Port Impedances Open
This paper presents a new theoretical framework for integrated linearly periodically time-varying circulators, with a focus on non-50 port impedance scenarios. The current literature predominantly addresses 50 port impedance cases, thereby…
View article: A mmWave Passive CMOS Circulator with Boosted Clock Signals for Enhanced Power Handling
A mmWave Passive CMOS Circulator with Boosted Clock Signals for Enhanced Power Handling Open
Publisher Copyright: © 2024 IEEE.
View article: A Wideband 60–100 GHz GaAs Low-Noise Amplifier as a Pre-Amplifier to a CMOS Receiver
A Wideband 60–100 GHz GaAs Low-Noise Amplifier as a Pre-Amplifier to a CMOS Receiver Open
Publisher Copyright: © 2024 IEEE.
View article: 55–100-GHz Enhanced Gilbert Cell Mixer Design in 22-nm FDSOI CMOS
55–100-GHz Enhanced Gilbert Cell Mixer Design in 22-nm FDSOI CMOS Open
Publisher Copyright: © 1993-2012 IEEE.
View article: Variable Time-Step 2.5-15 GHz Phase Modulator with Pre-Distortion for Outphasing Transmitters
Variable Time-Step 2.5-15 GHz Phase Modulator with Pre-Distortion for Outphasing Transmitters Open
Publisher Copyright: © 2024 IEEE. | openaire: EC/H2020/860921/EU//SMArT
View article: Analysis and Design of Constant-Slope Voltage-to-Time Converters
Analysis and Design of Constant-Slope Voltage-to-Time Converters Open
Publisher Copyright: © 2024 IEEE.
View article: Analysis of Current-Commutating Passive and Active Mixers for mmWave Applications
Analysis of Current-Commutating Passive and Active Mixers for mmWave Applications Open
Publisher Copyright: © 2024 IEEE.
View article: Crack Stop as a Coupling Element Between an IC Chip and Antenna
Crack Stop as a Coupling Element Between an IC Chip and Antenna Open
Publisher Copyright: © 2024 18th European Conference on Antennas and Propagation, EuCAP 2024. All Rights Reserved.
View article: An 18–28 GHz dual-mode down-converter IC for 5G applications
An 18–28 GHz dual-mode down-converter IC for 5G applications Open
Emerging spectrum trends require a higher integration of 5G New Radio Frequency Range 1 (FR1) and Frequency Range 2 (FR2) bands to enhance the availability of spectrum and spectrum-sharing opportunities. To enable the reception of both FR1…
View article: A Compact and Wideband mmWave Passive CMOS Circulator Based on Switched All-Pass Networks
A Compact and Wideband mmWave Passive CMOS Circulator Based on Switched All-Pass Networks Open
This letter presents a compact and wideband passive CMOS circulator for mmWave phased array transceivers. The letter focuses on achieving a compact die area while still offering competitive performance in terms of loss, isolation, and line…
View article: Reconfigurable Signal Processing and DSP Hardware Generator for 5G and Beyond Transmitters
Reconfigurable Signal Processing and DSP Hardware Generator for 5G and Beyond Transmitters Open
| openaire: EC/H2020/860921/EU//SMArT
View article: Active Wideband 55-100-GHz Downconversion Mixer in 22-nm FDSOI CMOS
Active Wideband 55-100-GHz Downconversion Mixer in 22-nm FDSOI CMOS Open
This paper presents a wideband active CMOS downconversion mixer for emerging mmWave communication and sensing applications. The designed mixer utilizes transformer coupling between the transconductance stage and switching stage of a classi…
View article: An Automated EM-Simulation Environment with Parameterized Layout Generation for Microwave Integrated Circuits
An Automated EM-Simulation Environment with Parameterized Layout Generation for Microwave Integrated Circuits Open
Publisher Copyright: © 2023 IEEE.
View article: High-Precision Time-to-Digital Conversion for Calibration of Outphasing Radio Transmitters
High-Precision Time-to-Digital Conversion for Calibration of Outphasing Radio Transmitters Open
Funding Information: This work was funded by European Union s Horizon 2020 Research and Innovation program under the Marie Sklodowska-Curie Grant No. 860921 and Academy of Finland. Funding Information: This work was funded by European Unio…
View article: A Wideband If Receiver Chip for Flexibly Scalable mmWave Subarray Combining and Interference Rejection
A Wideband If Receiver Chip for Flexibly Scalable mmWave Subarray Combining and Interference Rejection Open
Large-scale multi-beam phased array systems suffer from inter-beam interference that should be canceled either in the analog or digital domain. In wideband systems such as fifth generation (5G), interference rejection over a wide bandwidth…
View article: Effects of an IC Chip on an Antenna-IC Transition at 100 GHz
Effects of an IC Chip on an Antenna-IC Transition at 100 GHz Open
Funding Information: ACKNOWLEDGMENT This work was supported by the Business Finland through ENTRY100GHz CELTIC-NEXT project. Publisher Copyright: © 2023 European Association for Antennas and Propagation.
View article: Reconfigurable Signal Processing and DSP Hardware Generator for 5G Transmitters
Reconfigurable Signal Processing and DSP Hardware Generator for 5G Transmitters Open
To impose the reconfigurability and reusability of digital circuits for millimeterwave transmitter architectures, high-speed digital signal processing architectures are explored. The digital front-end of these next-generation transmitters …
View article: A 0.8-6 GHz True-Time-Delay Beam-Nulling Receiver Front-End
A 0.8-6 GHz True-Time-Delay Beam-Nulling Receiver Front-End Open
Advances in complementary metal-oxide-semiconductor (CMOS) integrated circuit (IC) technology have enabled the sophisticated wireless communication systems in use today. To respond to the demand for ever increasing data traffic volumes, th…
View article: A 6–20 GHz 400-MHz Modulation-Bandwidth CMOS Transmitter IC
A 6–20 GHz 400-MHz Modulation-Bandwidth CMOS Transmitter IC Open
This paper presents a transmitter IC with two identical signal paths, including base-band amplifier, up-converting mixer, and power amplifier (PA) stages. The design is focused on wide modulation bandwidth, and the use of a resonatorless s…
View article: A 2 GS/s 9-bit Time-Interleaved SAR ADC with Overlapping Conversion Steps
A 2 GS/s 9-bit Time-Interleaved SAR ADC with Overlapping Conversion Steps Open
Publisher Copyright: © 2022 IEEE.
View article: A 0.9-Nyquist-Band Digital Timing Mismatch Correction for Time-Interleaved ADCs Achieving Delay Tuning Range of 0.12-Sample-Period
A 0.9-Nyquist-Band Digital Timing Mismatch Correction for Time-Interleaved ADCs Achieving Delay Tuning Range of 0.12-Sample-Period Open
Publisher Copyright: © 2022 IEEE.
View article: Design of Cyclic-Coupled Ring Oscillators with Guaranteed Maximal Phase Resolution
Design of Cyclic-Coupled Ring Oscillators with Guaranteed Maximal Phase Resolution Open
Publisher Copyright: © 2022 IEEE.
View article: Energy-Efficient Cyclic-Coupled Ring Oscillator With Delay-Based Injection Locking
Energy-Efficient Cyclic-Coupled Ring Oscillator With Delay-Based Injection Locking Open
Lataa julkaisu, kun saatavilla.
View article: Leveraging frequency agility of an MIMO antenna cluster with a transmitter IC
Leveraging frequency agility of an MIMO antenna cluster with a transmitter IC Open
This paper presents the prototype demonstration where an integrated transmitter circuit drives a mobile handset terminal antenna in order to provide frequency tunability and multiple input multiple output (MIMO) operation across the 0.5–4.…
View article: True-Time-Delay Receiver IC With Reconfigurable Analog and Digital Beamforming
True-Time-Delay Receiver IC With Reconfigurable Analog and Digital Beamforming Open
Spatial diversity advantages such as improved signal-to-noise ratio and in-band blocker filtering can be achieved through beamforming in the digital and/or analog domain. Digital beamforming benefits from the precision and efficient parall…
View article: Fully Digital On-Chip Wideband Background Calibration for Channel Mismatches in Time-Interleaved Time-Based ADCs
Fully Digital On-Chip Wideband Background Calibration for Channel Mismatches in Time-Interleaved Time-Based ADCs Open
Rapid development of integrated circuit (IC) technologies has enabled the emergence of powerful and energy-efficient electronic systems such as smart phones. Nowadays, such devices can process immense amounts of data, which places stringen…
View article: A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture
A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture Open
Funding Information: ACKNOWLEDGMENT This research has been financially supported by Academy of Finland Ex5GRx (grant 2430226211) and also in part 6Genesis Flagship (grant 318927). Publisher Copyright: © 2021 IEEE.
View article: A Transmitter IC with Supply Tuning for Frequency-Reconfigurable Antenna Cluster
A Transmitter IC with Supply Tuning for Frequency-Reconfigurable Antenna Cluster Open
Publisher Copyright: © 2021 IEEE.
View article: A Compact Low-Power 140-GHz Low-Noise Amplifier with 19-dB Gain and 7-dB NF
A Compact Low-Power 140-GHz Low-Noise Amplifier with 19-dB Gain and 7-dB NF Open
Funding Information: This research has been supported by Academy of Finland, grant number 310880. Publisher Copyright: © 2021 IEEE
View article: A 5.4-GHz 2/3/4-Modulus Fractional Frequency Divider Circuit in 28-nm CMOS
A 5.4-GHz 2/3/4-Modulus Fractional Frequency Divider Circuit in 28-nm CMOS Open
Funding Information: This research has been financially supported by Academy of Finland (grant 2430226211). Publisher Copyright: © 2021 IEEE