IMS2018 Technical Sessions
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In this session, power dividers and combiners are presented with novel concepts and advanced technologies. Folded inductors on CMOS SOI technologies and the ridge waveguide have been applied in the design of power combiner/divider for miniaturized size. Techniques have also been studied to improve the frequency selectivity with slow-wave defected ground structures and single to balanced topologies.
This session introduces novel structures and components for microwave and millimeter wave bands,including polarizers, polarization converters, orthomode transducers, and new types of metamaterials and leaky wave antennas. It is demonstrated how to create an isotropic volumetric metamaterial out of planar elements by randomly distributing them. Compact planar polarizers are proposed, along with simple CAD formulas for analyzing them. A simple scheme for creating an artificial material is used to create an orthomode transducer as well as a polarization rotator. A novel type of leaky-wave antenna that has reduced beam squint with frequency is demonstrated.
Resonator-based Sensors are well known for their capability to measure various environmental Parameters. Within this session, recent advances in this field are addressed. The first paper presents a cantilever-based resonator with advanced sensitivity and selectivity. Afterwards a SIW sensor demonstrates how measure liquid permittivity. The third paper describes an advanced rotary encoders based on split ring resonators. The last one uses a packaged sensor for remote pressure measurements.
This session presents papers on three-dimensional inkjet-printed selective surfaces, dielectric 3D printing and stamping of RFID antenna sensors, ultrawideband liquid metal coaxial transmission lines, inkjet-printed beamforming arrays at W-band, and cavity filters fabricated using fused deposition modeling and micro-dispensing.
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This session covers the latest developments in passive circuits for communication systems up to Ka-band. Novel devices and circuit architectures based on innovative materials and concepts are presented, targeting both low-power and high-power RF/microwave applications.
State-of-the-art techniques in design optimization, macromodeling, circuit stability, and sensitivity analysis are addressed in this session.
Radio to terahertz waves are low-energy electromagnetic signals that, owing to their capability in interacting with biological samples
in a penetrant yet non-destructive way, are suitable for sensing, imaging and characterization in a fast, compact and label-free manner. With near-field interaction, they can even have nanoscale lateral and depth resolution despite their long wavelengths.
However, use of microwaves and millimeter-waves for this purpose presents new and interdisciplinary challenges, bridging fundamental science and technological development. This session introduces the most recent advances in CMOS sensors and microwave microscope enabled bio-sensing, imaging and characterization.
In this session, a variety of near-range radar sensors are presented, from temperature monitoring, acoustic vibration sensing, volume backscattering of particles, water surface monitoring, hand gesture recognition, and indoor localization.
This session presents state-of-the-art results on additively-manufactured waveguide components, operating from 10 to 400 GHz. Different manufacturing technologies are explored, ranging from metal-coated stereolithography to direct metal printing. Complex structures and high-resolution parts are demonstrated, showing the potential of these emerging technologies.
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This session will cover recent advances in the nonlinear analysis, modeling, and compensation of power amplifiers (PAs), frequency doublers, and oscillators. This will include important research findings on trapping effects in GaN HEMT PAs, pre-distortion of dual-band PAs, adaptive principal component based behavioral modeling and linearization, a frequency doubling alternative to up-converters for communication signals, and injection stimulated chirp oscillators.
This session presents a number of integrated waveguide components and transitions over millimeter-wave frequency range based on several approaches. Enabled by the manipulation of polarization selectivity, dually-polarized hybrid junctions are developed. Multi-mode dielectric waveguide is deployed for interference switch design. On the other hand, various integrated transitions are explored and studied theoretically and experimentally for different hybrid architectures of substrate integration.
The session focuses on recent advances in numerical techniques for efficient analysis and design of emerging microwave and multi-physics applications. Novel time and frequency domain methods are presented in conjunction with parametric design, large-scale modelling capabilities, presence of complex layered environments, and multi-scale features. Methods for coupling analysis of Maxwell's equations to mechanics, thermal physics, and the physics of ferrites are presented.
In this session, we report on recent advances of devices and applications in nanotechnology at frequencies ranging from microwave to Terahertz. The topics include next generation miniaturized magnetoelectric antennas, printed Indium Arsenide nanowire switches, planar spoof plasmons THz antennas, reconfigurable plasmonic filters, and 2D graphene epitaxy on SiC for RF applications
This session presents the latest results in the application of radar system for the detection of human vital signs. Topics of the session include improved detection concepts using double-sideband low-IF demodulation, multi-arc methods, low-power injection-locked circuits, and metamaterial leaky-wave antennas for beamsteering.
Low power solutions for next generation active and passive RFID techniques are presented. Different modulation formats are combined with backscattering for data transmission and localization.
Novel stratified integration techniques are employed to create compact, efficient microwave structures. In particular, compact frequency-stable phase shifters, high-selectivity filters, and compact packaged amplifiers are demonstrated.
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Load modulation in power amplifiers is a technique that allows for the change of the load termination of the active device in real-time in order to optimize a desired figure of merit (efficiency, linearity, output power). The Doherty amplifier is the most successful power amplifier adopting load modulation; however, other techniques exist that are able to overcome some of the Doherty's limitations and provide improved performance for specific applications. This focus session will highlight the emerging power amplifier solutions adopting load modulation techniques. These techniques are of high importance for the microwave community since they can be adopted in a wide range of applications (mobile telecom, 5G, WiFi, satellite telecommunications, radar, electronic warfare) and can enhance the performance of the power amplifier; the most critical component of a microwave radio.
This session consists of the emerging integration techniques of guided wave structures such as substrate integrated waveguide and microfabricated monolithic techniques. In particular, multilayer air filled SIW techniques and half mode waveguide techniques are presented for mm-wave and 5G applications. Single layer synthesized slow wave SIW techniques are proposed for the miniaturization of RF components. Fabrication issues and design methodology will be present together with measured and simulated results.
Novel theoretical approaches are presented across a broad range of microwave topics. These include frequency-domain S-parameter interpolation, complex pole/zero extraction, self-dual waveguide structures, active cloaking, and orbital angular momentum production.
This session reports recent achievements in the areas of nanomaterial-based devices and antennas. Special focus is made on MoS2 phase junction change Schottky diodes, flexible graphene field effect transistors, MoS2 RF switches, zero-biased THz rectennas, and optically transparent nanometer thick antennas.
This session combines novel RFID-enabled sensor platforms with non-conventional implementations and analytical and numerical techniques for high precision and discrimination of RF-tag signatures. Applications to several different scenarios are provided.
Modern applications in communications and sensing increasingly employs frequencies extending into the mmW and near-THz range. Papers in this session describe novel structures for interconnecting devices operating at these high frequencies. Of particular interest are structures that are amenable to manufacture.
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The session covers some of the key aspects of 5G systems, from predistortion to phased array and MIMO systems, to novel system architectures.
This session presents novel components and signal-processing techniques for the VHF and UHF bands. One paper demonstrates that angle-of-arrival can be determined using a modulated scatterer. Another presents a circulator based upon modulation techniques rather than magnets and ferrites. Other papers present tunable band-pass filters, adjustable phase shifters, and an adjustable two-band high-power directional coupler.
This session features a duplexer using substrate integrated suspended line (SISL) technology, a Ka-Band diplexer with high isolation, and a DC-18 GHz contiguous multiplexer using minimum capacitors. Also showcased are a dual-band bandpass filter with a wide upper stopband and a triple-band filter using hybrid multilayer-SIW multimode resonators.
This session brings together a set of papers that apply behavioral models to a broad range of device and circuit structures from GaN and LDMOS transistors, mixers, voltage controlled oscillators, and multi-antenna transmitters; thus, covering many of the key elements of future communication and sensing systems. Behavioral modeling concepts include Cardiff Model, State Function Model, Neural Network, and Hammerstein-Wiener approaches.
This session covers advanced MEMS filters, resonators, and waveguides. It discusses solutions that use a range of materials such as AIN, Lithium Niobate, machined silicon waveguides, and low-cost approaches using commercially-available packaged parts. Applications discussed range in frequency from HF to 325 GHz.
This session provides an overview of latest developments in Si-based MMW/THz circuit technology. The first paper describes a beam steering phased-array at 0.55 THz using Y-vector network technique. The second paper presents an E-band radar transceiver with a tunable TX-to-RX leakage cancellation for automotive applications. The next two papers address I/Q receiver front-ends operating up to W-band frequencies. The fifth paper is an injection-locked frequency divider for low injected input power level. The last paper in the session is a 103-GHz VCO with 28% tuning range.
This session presents enabling components and sub-system design techniques for phased array and multi-beam antenna systems. Targeted applications include 5G communications, multi-beam MIMO, and radar. The RF subsystems are based on SiCMOS, GaN, surface-mount, and printed circuit technologies. Array beam-forming architectures include traditional and non-traditional approaches for phased arrays, reconfigurable and element-level nulling approaches.
This session presents a selection of techniques to achieve high performance in high power amplifier design. Covers efficiency enhancement techniques, including optimization of baseband impedance for wideband applications as well as the application of DPD linearizing the amplifier and extending the power range. Additional work covers package internal matching for broader band and higher efficiency performance. Another work includes an internal partial match and external combiner to achieve kW power in a compact size. A PA design in a T/R MMIC is demonstrated that achieves a greater than an octave bandwidth at C-Ku band. The session covers a range of technologies and new techniques for high power amplifier design.
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This session presents 5 papers that address enhancements of Multi-GHz all Digital and Mixed Signal Circuits and Systems. The presented mixed signal circuits include a novel 110 GHz analog multiplexer, a wide range frequency ratio calculator for PLL applications, and a 3D interconnect solution for transceivers. The session is continued with a multi GHz all-digital transmitter with 1.25 GHz of Bandwidth and a 2D IIR beam filter digital array processor
This session features some of the recent advancements in integrated mixer and frequency multiplier technology. Four mixers and one frequency tripler are described that span a wide range of technologies including Graphene, SOI CMOS,BiCMOS SiGe HBT, transferred substrate (TS) InP DHBT,and GaAs.
This session highlights new ideas in filter tuning techniques and the synthesis of lossy filters. Also featured are half-mode SIW and coaxial SIW bandpass filters, and microstrip filters with cul-de-sac and symmetrical diagonal cross-coupling arrangements.
The session presents recent advances in characterization and modeling of trapping phenomena in GaN HEMTs. Investigation of fast and slow trapping mechanisms, and characterization/extraction methods for trapping time constants will be presented. Novel trap characterization and modeling methods to switch applications will also be discussed.
Recent activities in research and development of phase-change material and ferroelectric-based devices for eletrically tunable filters, and broadband and low-temperature cofired ferrite circulators are reported.
State-of-the-art GaN power amplifiers and in/situ load pull technologies over 100 GHz will be presented. A complex active x6 InP multiplier technology will be shown at 265 GHz. GaAs multiplier with epitaxial transfer on silicon carrier at 160 GHz will be reported.
A 460 GHz MEMS based waveguide switch with low insertion loss will be shown.
This session focuses on innovations on highly appealing phased array systems and applications. The manuscripts come from industrial and academic communities. Phased array systems for communication and sensor applications are presented. In particular, phased array architectures for high-altitude pseudo-satellite applications and 5G communications are considered. System-level and development perspectives are provided in the presentations. In addition, the effects of interferences in the performance of phased array in terms of intermodulation phenomena and sensitivity degradation are also considered. Finally, some insight on linearity and efficiency improvement in phased array transmitters with a large number of elements is provided.
This session provides updates on recent development in the area of high power Doherty amplifiers for fourth and fifth generation wireless communication transmitters. These include techniques to maximize the performance (linearity and or efficiency) when implemented using monolithic integrated microwave circuits and printed circuit board technologies. The presented papers cover frequencies spanning from sub-6GHz to Ku band.
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This session explores novel energy-harvesting, imaging, and sensing system applications as well as new circuit concepts for extending the linearity of amplifiers and mixers.
While RF switches are key elements in modern wireless communications and defense applications, switch performance has been stagnant over a decade or so. With 5G on the horizon, defense RF systems moving to the millimeter-wave, and software defined configurability; low loss RF and millimeter-wave switches are highly desirable. Recent phase-change material RF switches are very promising with a 10 times better RF switch figure-of-merit (Ron*Coff) demonstrated over SOI switches. This focused session will cover emerging PCM RF switches for 5G wireless and defense applications.
This session reflects the current development trends for microwave accoustic components for RF filtering in wireless communication systems. The applicability of SAW devices operating in the sub 6 GHz range is investigated. A miniaturized triplexer constructed out of two diplexers using SAW resonators and LC components is presented. Furthermore, an instrinsically switchable and frequency reconfigurable FBAR filter based on ferroelectric BST is reported. Finally, acoustic-wave-lumped-element-resonators (AWLRs) are used to demonstrate input-reflectionless bandpass filters as well as multiband bandstop filters with continuously tunable stopband bandwidths.
Recent advances in terahertz and mm-wave technologies are presented. Included are THz bioimaging, mm-wave phase shifter, mm-wave/THz module packaging, and THz calibration components.
This session presents enabling radar systems concepts and transceiver circuits. The first paper in the session presents an IC based 30 GHz bandwidth receiver for security imaging applications. The second paper presents a CMOS transceiver front end at Ka band. The third paper presents fundamental limits of implementing stepped carrier OFDM radar waveforms in hardware. The fourth paper presents a 28 GHz 5G phased array radar for detecting drones in flight and for monitoring automotive traffic.
This session is focusing on microwave based biomedical investigations performed by women researchers. A wide range of
applications is covered, starting from electromagnetic fields effects for new disease treatment solutions or tumor ablation, including
also non-invasive cellular characterization and finally involving wireless body tracking systems with applications in early diseases
diagnostic.
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Adavnced solutions for the practical realization of filters and diplexers in several non-planar technologies.
This session will present several new architectures and design techniques for RF to DC rectifiers and energy harvesting systems. These include new methods for modeling, impedance matching, load pull techniques, differential designs, and fully integrated systems.
This session addresses the latest advancements of dielectric sensing in cells, tissue and others fluids for biological applications, such as monitoring of cell proliferation, cell electroporation, and thermal stress.
In this join IMS/ARFTG Session, high frequency large signal measurement techniques will be addressed covering millimeter wave, broadband, modulated signals, and load pull characterization. Traceable characterization using large signal network analyzers will be covered, as will the analysis of the LO phase contribution in multi-tone RF phase measurements. Coplanar waveguide in-situ impedance measurements demonstrated in 45-nm bulk CMOS will be discussed.
This session presents advances in techniques and technologies in THz and microwave photonics. The papers cover a wide range of topics, including wireless communications, terahertz spectroscopy, optical beamforming networks, low phase noise systems, and radio over fiber.
This session explores TX and RX hardware implementations based on innovative RF architecture used in next generation communication systems, including MIMO, beam steering arrays, low power applications and tunable transceivers.
Advances in bandwidth and linearity of Doherty PAs in both GaN and CMOS technologies are presented. Additionally, other forms of load modulation such as a sequential digital PA and a reactive load and supply-modulated PA in GaN are discussed.
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New synthesis and design techniques for non-planar filters and multiplexers will be presented.
This session presents various techniques for wireless power transfer including capacitive coupling, dynamic matching, baterry-less and free positioning devices.
The latest development for hyperthermia treatment will be presented on innovative dual-mode applicators for optimum positioning and individualized treatment, as well as in-depth modeling and analysis. Additionally, wireless power transfer to implantable devices will be discussed.
This joint IMS/ARFTG measurement and calibration session covers a number of exciting techniques with applications through mm-wave. On-wafer radiation measurement and calibration issues will be highlighted as will calibration methods for built-in CMOS test and for load-pull improvements.
This focus session will present advancements in integrated photonic and optoelectronic circuits and systems that will advance microwave and millimeter-wave systems. Advancements of photonic integrated circuit technology related to silicon photonics, indium phosphide, and other processes will support higher circuit complexity and offer unique signal processing capability. This session highlights recent research on process technology, circuits, and systems with a specific focus on next generation (5G and data center) communication systems that will be significantly enhanced with integrated photonic and optoelectronic components.
With the explosion of 5G mm-wave systems, there is a large interest in low-cost beamformers and phased-array solutions capable nof Gbps links at hundreds of meters. This session will present the latest developments in this area, and cover both SiGe and CMOS beamformers, and 8x8 and 16x16-element phased arrays. The session will also cover system demonstrations with Gbps data links at long distances. Finally, measurement techniques for high-speed and low-cost phased-array characterization including complex constellation at wide scan angles will be presented.
This session captures state-of-the-art millimeter-wave and wide bandwidth power amplifier performance and the advanced design techniques that are used to realize them. The session begins with E- and W-Band power amplifiers realized in silicon based technologies. Two state-of-the-art 6 - 18 GHz power amplifiers are described in the heart of the session. We close the session with a wide bandwidth InP amplifier with a novel linearization approach that is implemented in each cell of the distributed amplifier.
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In this session, new principles for the design of tunable/reconfigurable filters and duplexers in a variety of technologies are presented. They include 3-D cavity and waveguide filters that are tunable in center frequency, planar filters with multi-band bandpass/bandstop response and extended center-frequency tuning range, frequency-controllable quasi-elliptic-type duplexers, and code-selective and tunable integrated N-path filters.
This session presents novel techniques for measurement of material properties in MW and MMW bands. Applications, multiphysics models, and optimization are discussed for high-power components and processes.
This session presents the latest results in microwave research for biomedical and healthcare devices. Latest research in pulse and blood pressure measurements using the high-freqency technology as well as for thermoacoustic imaging is presented. In addition, an approach for a wirelessly powered neurostimulator is shown in this session.
This session presents new advanced design approaches for improving performance of CMOS microwave and millimeter wave signal sources including wide tuning range, phase noise reduction, low power design, and adaptive biasing techniques.
This session presents innovative designs for integrated phase shifters, delay lines, and power amplifiers using CMOS, GaN, and diamond technology.
In this session, advances in mm-wave to terahertz sensing, imaging and communication links will be presented. The first pair of papers will discuss utilizing wide-band multi-port antennas for multi-functional imaging capable of beam steering and polarization detection, and for near-field spectroscopy using regression analysis. This is followed by a 120 GHz, 4-channel radar system on a chip for MIMO and phased array applications. The session will conclude with two papers on mm-wave and THz wireless transceiver communication links at 39 GHz and 300 GHz.
This exciting session will showcase the latest advances in low noise technologies. Technologies range from Silicon HBT and CMOS transistors to compound semiconductor devices including mHEMT and GaN based LNAs. Their frequency of operation extends from C band up to W band at either room or cryogenic temperatures. Papers address the need for reduced power consumption as well as increased survivability and increased RF output power.
