A5054632261- Radio Frequency Integrated Circuit Design
- Seismic Imaging and Inversion Techniques
- Microwave Engineering and Waveguides
- earthquake and tectonic studies
- Geophysical Methods and Applications
- Seismology and Earthquake Studies
- Seismic Waves and Analysis
- Photonic and Optical Devices
- Advanced Topology and Set Theory
- Rock Mechanics and Modeling
- Acoustic Wave Resonator Technologies
- Drilling and Well Engineering
- Homotopy and Cohomology in Algebraic Topology
- Full-Duplex Wireless Communications
- Spectroscopy and Laser Applications
- Hydraulic Fracturing and Reservoir Analysis
- Antenna Design and Optimization
- Medical Imaging Techniques and Applications
- High-pressure geophysics and materials
- Terahertz technology and applications
- 3D IC and TSV technologies
- Geotechnical and Geomechanical Engineering
- Earthquake Detection and Analysis
- Computability, Logic, AI Algorithms
- Synthetic Aperture Radar (SAR) Applications and Techniques
Polish Academy of Sciences
2011-2023
Silicon Radar (Germany)
2012-2023
Institute of Geophysics
2011-2023
Delft University of Technology
2022
University of Saskatchewan
1987-2018
Wojskowy Instytut Medycyny Lotniczej
2011
Norsar
2010
Keele University
1999
Silesian University in Opava
1991-1996
Institut de physique du globe de Paris
1992-1995
Seismic amplitude variation with offset data contain information on the elastic parameters of geological layers. As general solution inverse problem consists a probability over space all possible earth models, we look at probabilities obtained using (AVO) for different choices parameters. A proper analysis in requires nontrivial definition defining state total ignorance (seismic velocities, Lamé’s parameters, etc.). We conclude that mass density, seismic impedance, and Poisson’s ratio...
The iterative design of an integrated subharmonic receiver for 120-127 GHz is presented. consists a single-ended low-noise amplifier (LNA), push-push voltage-controlled oscillator (VCO) with 1/32 divider, polyphase filter, and mixer. fabricated in SiGe:C BiCMOS technology <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">fT</i> / xmlns:xlink="http://www.w3.org/1999/xlink">f</i> <sub xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> 255 GHz/315...
A 245-GHz transmitter (TX) array with an integrated antenna-array for a gas spectroscopy system has been realized. It consists of push-push VCO 1/64 frequency divider, power amplifiers, doublers, and on-chip antennas localized backside etching. The TX-frequency is tunable in the range from 238 to 252 GHz. TX-array fabricated 0.13- μm SiGe:C BiCMOS technology f T /f max 300 GHz/500 Its output approximately 7 dBm at 245 GHz, effective isotropically radiated (EIRP) reaches 18 main components...
This paper presents an integrated mixed-signal 120GHz FMCW/CW radar chipset in a 0.13μm SiGe BiCMOS technology. It features on-chip MMW built-in-self-test (BIST) circuits, harmonic transceiver, software linearization (SWL) circuits and digital interface. has been tested low-cost package, where the antennas are integrated. Above 100GHz, our transceiver achieved state-ofthe-art integration level receiver linearity, DC power consumption.
A 245 GHz transmitter (TX) with an integrated antenna for sensing applications has been realized, which consists of a push-push VCO 1/64 frequency divider, transformer-coupled one-stage power amplifier, doubler, and on-chip localized backside etching. The the TX is tunable by external PLL in range from 239.5 to 250.8 GHz. fabricated 0.13 μm SiGe:C BiCMOS technology f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</sub> /f...
In this paper, a high-range 60-GHz monostatic transceiver system suitable for frequency-modulated continuouswave (FMCW) applications is presented. The RF integrated circuit fabricated using 0.13-μm SiGe BiCMOS technology with fT/fmax of 250/340 GHz and occupies very compact area 1.42 × 0.72 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . All the internal blocks are designed fully differential an in-phase/quadrature receiver (RX)...
Research Article| January 01, 2010 Preliminary Analysis of the 21 February 2008 Svalbard (Norway) Seismic Sequence Myrto Pirli; Pirli NORSAR PO Box 53 N-2027, Kjeller Norway myrto.pirli@norsar.no (M. P.) 1Norwegian Array (NORSAR), Kjeller, Search for other works by this author on: GSW Google Scholar Johannes Schweitzer; Schweitzer Lars Ottemöller; Ottemöller 2British Geological Survey, Edinburgh, Scotland, U.K.; now at University Bergen, Department Earth Sciences. Mohammad Raeesi; Raeesi...
This article reports a 223–276-GHz monostatic frequency-modulated continuous-wave (FMCW) radar transceiver (TRX) chip. The TRX is suitable for building massive multiple-input multiple-output (MIMO) arrays in the daisy-chain topology because of its cascadable feature based on injection-locking feedthrough technique. <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$18\times $ </tex-math></inline-formula>...
This paper focuses on the design and measurement results of a 120 GHz monostatic transceiver system for FMCW radar applications. The fully integrated chip is fabricated using 0.13 μm SiGe BiCMOS technology with f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</sub> /f xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> 250/340 occupies only an area 1.33×0.73mm <sup xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , With current consumption...
This letter reports a compact-size 225–265 GHz quadrature receiver (RX), consisting of low-noise amplifier (LNA), power divider (PD), two down-conversion fundamental mixers, and an IQ generator, in 130-nm SiGe BiCMOS technology with <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$f_{T}/f~_{\text {max}}$ </tex-math></inline-formula> 300/500 GHz. The measured peak value the gain is 20.6 dB at 240 without IF...
High-performance IC-to-antenna interconnection is one of the key enablers for mass production high-end millimeter wave (mmW) radar systems above 100 GHz. In this work, a system with an on-package antenna array working at 122 GHz presented. The placed on top molded package and antenna-to-chip realized by through-polymer via (TPV) technology. detailed fabrication process antenna-in-package (AiP) TPV discussed. results from functional tests AiP are presented benchmarked to commercial quad-flat...
A subharmonic transceiver for sensing and imaging applications in the 122 GHz ISM band has been proposed. The receiver consists of a single-ended LNA, push-push VCO with 1/32 divider, polyphase filter, mixer. is fabricated SiGe:C BiCMOS technology fT/fmax 255GHz/315GHz. Its differential down-conversion gain 31 dB at GHz, corresponding noise figure 11 dB. 3-dB bandwidth reaches from 121 to 124 GHz. input 1-dB compression point -44 dBm. consumes 113 mA supply voltage 3.2 V.
A 245 GHz sensor system for gas spectroscopy is presented, which includes a SiGe receiver (RX), transmitter (TX), and 0.6 m long absorption cell between the TX RX. The integrated local oscillators of RX are controlled by two external phase locked loops (PLLs), whose reference frequencies swept with constant frequency offset low IF consists differential noise amplifier (LNA), an 122 oscillator (LO) 1/64 divider, 90° hybrid, active subharmonic mixer. LO doubler. fabricated in 0.13 µm BiCMOS...
A 500 GHz system for gas spectroscopy is presented, which includes an integrated SiGe 4 × 1 transmitter (TX) array, a Golay cell as detector and 1.9 m‐long absorption cell. The local oscillator (LO) of the TX array controlled by external phase‐locked loop, whose reference frequency swept. four branches involve quadruplers (x4). are fed 120 power division network, connected to LO. estimated radiated output −7 dBm at GHz. spectrum gaseous methanol shown 494–500
This letter presents a 220–261-GHz frequency multiplier-by-18 chain in 130-nm SiGe BiCMOS technology. It consists of three amplifiers (12–15, 110–135, and 216–270 GHz), two triplers (36–45 108–135 third-order Chebyshev bandpass filter modified Gilbert-cell-based doubler (216–270 GHz). The peak output power is about 8 dBm at 240 GHz with 3-dB bandwidth 41 for an input −7 dBm. unwanted harmonics are suppressed more than 25 dBc over the range interest. consumes dc current 114.7 mA from supply...
Increasing demand for industrial radars has spurred research aimed toward designing better transceiver (TRx) integrated circuits (ICs) combined with advanced packaging technologies [1]-[6], innovative antenna concepts, very precise wirebonding schemes [5]-[8], and high-performance baseband processing systems [9]. With a well-optimized package of such products, the resulting application fields can vary from avionics robotics to automotive, monitoring, level-tracking, vital-sign-detection...
A 245 GHz transmitter (TX) array with an integrated antenna-array for a gas spectroscopy system has been realized, which consists of push-push VCO 1/64 frequency divider, power amplifiers, doublers, and on-chip antennas localized backside etching. The TX-frequency is tunable in the range from 238 to 252 GHz. TX-array fabricated 0.13 μm SiGe:C BiCMOS technology fT/fmax 300GHz/500GHz. Its estimated output 7 dBm at GHz, EIRP reaches 18 includes TX receiver SiGe. sensitivity this demonstrated by...
The paper presents two types of 122 GHz low-noise-amplifiers (LNA) fabricated in SiGe BiCMOS technology. amplifier design takes advantage a novel transmission line structure with thick metal ground-shield on top the MMIC. circuit is two-stage cascode topology utilizing lines for input, output and inter-stage matching. amplifiers are designed high gain, minimum noise figure low power consumption. Measurements show gain 13.5 dB 9.6 at GHz. consumption 52 mW from 3.5 Volt supply. other version...