Vessen Vassilev
Vessen Vassilev received M. Sc degrees in “Radio Communications” from the Sofia Technical University in ’95, and in “Digital Communications” from Chalmers University of Technology in ’98. In 2003 he received his PhD degree from the department of “Radio and Space Science” at Chalmers University. Between 1998 and 2008 he has been working with the development of mm-wave receivers for applications in radio astronomy and space sciences. Most notably among these instruments are the “facility instrument” of the Atacama Path Finder Experiment (APEX) telescope installed in the Chilean Atacama desert in 2008, and the 85-115 GHz receiver for the Onsala Space Observatory. Since 2008 he is with the Microwave Electronics Laboratory at the Department of Microtechnology and Nanoscience at Chalmers. His current interests are in the development mm-wavelength sensors based on Monolithic Microwave Integrated Circuit technologies. A sensor for remote measurement of moisture in thin paper layers, a total power radiometers for thermal imaging applications and a heterodyne radiometer for the Ozone line at 110.8 GHz are among the instruments he recently worked with. Vessen Vassilev authored 8 and co-authored 10 papers in refereed scientific journals, he also authored 12 and contributed to 36 conference papers.
Showing 114 publications
Road Surface Characterization Using a 77-81 GHz Polarimetric Radar
A Wideband 60-100 GHz GaAs Low-Noise Amplifier as a Pre-Amplifier to a CMOS Receiver
Wideband Reflection-Type p-i-n Diode Phase Shifters in GaAs MMIC Technology at W-Band
Integrating InP MMICs and Silicon Micromachined Waveguides for sub-THz Systems
Multilayer Dry Film Photoresist Fabrication of a Robust >100 GHz Gap Waveguide Slot Array Antenna
Substrate-Less Vertical Chip-to-Waveguide Transition for W-Band Array Antenna Integration
Road Surface Recognition at mm-Wavelengths Using a Polarimetric Radar
Dual-Polarised Radiometer for Road Surface Characterisation
G-band Power Amplifiers in 130 nm InP Technology
Compact Low-Loss Chip-to-Waveguide and Chip-to-Chip Packaging Concept Using EBG Structures
G-band Frequency Converters in 130-nm InP DHBT Technology
A 55-105 GHz PIN Diode SPDT Switch
D-band waveguide-to-microstrip transition implemented in eWLB packaging technology
Oil, water, and ice detection on road surfaces with a millimeter-wave radiometer
Packaging Technique of Highly Integrated Circuits Based on EBG Structure for +100 GHz Applications
Road Surface Characterization Using a Radiometer at 100 GHz
Nongalvanic Generic Packaging Solution Demonstrated in a Fully Integrated D-Band Receiver
A Directly Matched PA-Integrated K-band Antenna for Efficient mm-Wave High-Power Generation
Demonstration of +100-GHz Interconnects in eWLB Packaging Technology
F-band Low-loss Tapered Slot Transition for Millimeter-wave System Packaging
An E-band Compact Frequency Division Duplex Radio Front-end Based on Gap Waveguide Technology
PCB Based UWB mm-Wave Smart Capped Bowtie Array for 5G Communication Systems
Spectrum Efficient D-band Communication Link for Real-time Multi-gigabit Wireless Transmission
A 110-170 GHz transceiver in 130 nm SiGe BiCMOS technology for FMCW applications
A 90-140 GHz, High Power Frequency Source Packaged in a Self-aligned Waveguide Module
Bandwidth Investigation on Half-Height Pin in Ridge Gap Waveguide
A Low-loss D-band Chip-to-Waveguide Transition Using Unilateral Fin-line Structure
A +14.2 dBm, 90–140 GHz Wideband Frequency Tripler in 250-nm InP DHBT Technology
A 143 GHz InP-based radio link characterized in long-term outdoor measurement
Wideband cavity-backed slot subarray with gap waveguide feed-network for D-band applications
E-band 3-D metal printed wideband planar horn array antenna
A Non-galvanic D-band MMIC-to-Waveguide Transition Using eWLB Packaging Technology
Silicon Taper Based D-Band Chip to Waveguide Interconnect for Millimeter-Wave Systems
D-band Waveguide Transition Based on Linearly Tapered Slot Antenna
Polymer Gap Adapter for Contactless, Robust, and Fast Measurements at 220-325 GHz
A compact receiver system for simultaneous measurements of mesospheric CO and O3
AMC pin waveguide flange for screw redundant millimeter and submillimeter measurements
A multi-layer gap waveguide array antenna suitable for manufactured by die-sink EDM
A mm-Wave Sensor for Remote Measurement of Moisture in Thin Paper Layers
A 110-170-GHz Multi-Mode Transconductance Mixer in 250-nm InP DHBT Technology
Imaging front-end for thermal detection using an InP DHBT process
Design and Characterization of H-Band (220-325 GHz) Amplifiers in a 250-nm InP DHBT Technology
MICROMACHINED GAP WAVEGUIDE DEVICES FOR ABOVE 100 GHZ
140-220 GHz Imaging Front-end Based on 250 nm InP/InGaAs/InP DHBT Process
IMAGINE project - A low cost, high performance, monolithic passive mm-wave imager front-end
Multifunction low noise millimeterwave MMICs for remote sensing
Micromachined Ridge Gap Waveguide and Resonator for Millimeter-Wave Applications
H-band MMIC amplifiers in 250 nm InP DHBT
Micromachined ridge gap waveguide for sub millimeter and millimeter wave applications
A varactor model including valanche noise source for VCOs phase noise simulation
Integrated front-ends up to 200 GHz
Design of Micromachined Ridge Gap Waveguides for Millimeter-Wave Applications
MMIC-Based Components for MM-Wave Instrumentation
MMIC-based receivers for mm-wave radiometry
Superconducting IF biasing circuit for low-noise cryogenic applications
Terahertz Instrumentation For Radio Astronomy
On the status of Low Noise Millimeterwave MMIC Receivers
Integrated receivers up to 220 GHz utilizing GaAs-mHEMT technology
Optics Design and Verificatgion for the APEX Swedish Heterodyne Facility Instrument (SHeFI)
ALMA Band 5 (163-211 GHz) Sideband Separating Mixer Design
Low-Noise Cryogenic Amplifier built using Hybrid MMIC-like / TRL Technique
A Swedish heterodyne facility instrument for the APEX telescope
Optics Design and Verification for the APEX Swedish Heterodyne Facility Instrument (SHeFI)
ALMA Band 5 (163-211 GHz) sideband separation mixer design
A method for detection of powder materials in metallic hollow structures using microwaves
A 0.5 THz Sideband Separation SIS Mixer for APEX Telescope
Design and Characterization of a 211-275 GHz Sideband Separating Mixer for the APEX Telescope
A 211-275 GHz Sideband Separating SIS Mixer for APEX
Facility Heterodyne Receiver for the Atacama Pathfinder Experiment Telescope
A 0.8 mm heterodyne facility receiver for the APEX telescope
A 279-381 GHz SIS Receiver for the APEX Telescope
A 385-500 GHz SIS Mixer for APEX Telescope
A sideband separation SIS mixer for 275-370 GHz for the APEX telescope
Superconducting microstrip line model studies at millimetre and sub-milimetre waves
APEX - The Atacama Pathfinder Experiment
Design of a Sideband Separating Receiver for 500 GHz
Cryogenic LNA Characterization with SIS Junction as Noise Source
A Vector Beam Measurement System for 211-275 GHz
Sideband Separating SIS Mixer with On-Substrate LO-Injection Circuitry
A Vector Beam Measurement System for 211-275 GHz
Heterodyne Single-Pixel Facility Instrumentation for APEX Telescope
A Novel Design of Broadband Waveguide Directional Couplers and 3-dB Hybrids
High Quality Microstrip Termination for MMIC and Millimeter-Wave Applications
A 275-370 GHz Receiver SIS Mixer With Novel Probe Structure
High Performance of Resistive Thin-film Termination for Microstrip Lines
A Sideband Separating Mixer for 85-115 GHz
Performance of a Sideband Separating SIS Mixer for 85-115 GHz
Design and Characterization of a Sideband Separating SIS Mixer for 85-115 GHz
A 275-370 GHz SIS Mixer for the APEX Telescope
Development of a Sideband Separating SIS Mixer Technology for MM-Wavelengths
Superconducting microstrip line models at millimeter and sub-millimeter waves and their comparison
A New 3 dB Power Divider for MM Wavelengths
Development of components for mm-wave radio astronomy instrumentation / Vessen V. Vassilev
Design and Performance of a 3.4 to 4.6 GHz Active Equalizer with Controlled Gain Slope
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Showing 6 research projects
Advanced Radar Sensor Front-end Modules and Solutions for Increased Road Safety
Antenna technologies for beyond 5G Wireless Communication
High-Resolution D-band Radar Sensor for Automotive and Autonomous System Applications
Cost-Effective Receivers for Sensing Beyond 100 GHz