A5011477580- Radio Frequency Integrated Circuit Design
- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Superconducting and THz Device Technology
- Electromagnetic Compatibility and Noise Suppression
- Electromagnetic Compatibility and Measurements
- Microwave and Dielectric Measurement Techniques
- Antenna Design and Optimization
- Photonic and Optical Devices
- Advancements in PLL and VCO Technologies
- Full-Duplex Wireless Communications
- Semiconductor Quantum Structures and Devices
California Institute of Technology
2014-2020
Aalto University
2017
University of Wuppertal
2014
John Brown University
2014
Cadence Design Systems (United States)
2014
Chalmers University of Technology
2014
Chungnam National University
2014
Columbia University
2014
Dynamic polarization control (DPC) is the method of setting far-field electric field generated by a radiating antenna entirely electronically in order to maintain matching with receiving regardless its or orientation space. This work implements fully integrated 2 × 1 phased array radiator 32 nm CMOS SOI at 105.5 GHz DPC. The system consists central locking oscillator that phase locks oscillators within core each followed three amplification stages variable gain drive antennas. By controlling...
The feasibility of using CMOS technology for RF amplification in atmospheric remote sensing receiver is studied. design and measurement results a 200-GHz low-noise amplifier which fabricated 32-nm SOI are presented. 8-stage common-source configuration achieves 9-dB noise figure 25-dB gain with power consumption 33 mW.
A compact second harmonic 180 GHz I/Q balanced resistive mixer is realized in a 32-nm SOI CMOS technology for atmospheric remote sensing applications. The MMIC further includes two on-chip IF amplifiers at the mixer's I and Q channels. conversion gain of +8 dB achieved with 74 mW dc power consumption using 1.2 V supply. measured frequency range from 1 to 10 GHz. achieves 20 imagerejection (IR) ratio an LO input +4 dBm. chip size 0.75 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Electromagnetic duality is used to design a multi-port traveling-wave slot-ring antenna with on-chip driver circuitry create fully integrated radiator. By creating slot version of the driven antenna, required exclusive use area significantly decreased, while still being able perform impedance matching, power combining, and transfer off chip through electromagnetic radiation in single step. The core consists an oscillator followed by three amplification stages. A split path inductor was...
Simultaneous two-dimensional (2-D) beam steering and dynamic polarization control (DPC) of the radiated electric field in 2-D phased arrays ensure matching between transmitter receiver antennas both fixed mobile wireless systems. Polarization is maintained regardless polarization, orientation, location antenna space within range transmitter. This work implements a fully integrated 2 × DPC phased-array 32-nm CMOS silicon-on-insulator process, radiating at 122.9 GHz. It achieves maximum...
Flexible and conformal phased arrays enable a broad range of novel applications. One the major challenges for such systems is that they experience change in their behavior when bent or deformed. A self-calibrating flexible array can overcome this by estimating relative position its elements as undergo local deformations. In work, we demonstrate dynamically 8-element based on custom CMOS transceiver unit. Beam-steering demonstrated with flat conformed to convex concave bend radii ±120 mm....
In this letter, we propose a novel wideband subharmonically pumped fully differential I-Q resistive mixer architecture, which eliminates the necessity for on-chip dc-blocking capacitors to integrate IF amplifiers. The proposed subharmonic topology is verified by presenting CMOS millimeter-wave monolithic integrated circuit (MMIC), includes and two amplifiers at mixer's I- Q-channels. 3-dB frequency bandwidth measured from 0.01 5 GHz with peak conversion gain (CG) of -2 dB an image rejection...
A traveling-wave integrated slot radiator is designed using electromagnetic duality theory based off of the ring portion a radial multi-port driven to minimize area required exclusively for antenna. It in 32 nm SOI CMOS and by buffered quadrature VCO at 4 points create traveling wave that radiates out backside chip. measured have maximum EIRP 6.0 dBm 134.5 GHz with total radiated power -1.7 while drawing 168 mW DC power.
Dynamic Polarization Control (DPC) ensures polarization matching to the receiving antenna regardless of its or orientation in space. A fully integrated 105.5 GHz 2×1 DPC multi-port driven radiator array with beam steering radiates linear across full angle range 0° 180° maintaining axial ratios above 10 dB, and controls ratio from 2.4 dB (near circular) 13 (linear) various directions radiation a maximum EIRP 7.8 dBm.
Integration of Proximal-Field Radiation Sensors (PFRS) with mm-wave integrated radiators enables extraction valuable information about their far-field radiation properties from the surface waves inside substrate and electromagnetic fields in close proximity radiating antennas. In this paper, we present a 72 GHz 2×1 radiator array four on-chip PFRS units to show proximal-field sensing capability calculation solely through measurement proximal fields.
In this paper, we study the feasibility of using CMOS circuit blocks for designing future light weight, small in size atmospheric remote sensing receivers. A compact down-converter is designed which operates from 160 to 188 GHz and includes a sub-harmonically pumped I/Q resistive mixer, two IF amplifiers voltage controlled oscillator (VCO) with LO buffer. measured down-conversion gain +2.6 dB achieved total dc power consumption 152 mW nominal supply +1.2 V. The measurement results show 3...
Proximal-field sensing is introduced as an integrated scheme for the in situ characterization of far-field radiation properties radiators, and proximal-field sensors (PFRSs) are proposed tools to enable this capability. These on same dielectric substrate transmitting antennas extract existing information excited modes use it predict real time based field measurements close proximity antennas, without any need additional test equipment, remove antenna from its operating environment, or...
Radiator arrays with Dynamic Polarization Control (DPC) and 2D beam steering enable polarization matching to the receiver antenna regardless of its polarization, orientation, location. A fully integrated 122.9 GHz 2×2 DPC multi-port driven phased array radiates all linear polarizations (0°-180° angles) axial ratios above 14 dB, controls ratio from 1.2 dB (circular) 17.8 (linear) a maximum EIRP +12.3 dBm up 15°.
Proximal-Field Radiation Sensors (PFRS) are introduced as a new set of tools to enable extraction far-field radiation properties integrated antennas from the surface waves inside their dielectric substrates. These sensors allow self-characterization, self-calibration, and self-monitoring performance for both printed circuit board (PCB) (IC) without any need additional test equipment. In this paper, we explain how these can be implemented demonstrate determined them. A PCB prototype...