Field, Device and Circuit Tech.

This session presents various effects, phenomena, and modeling techniques. Modeling techniques include an approach for the numerical analysis of inhomogeneous waveguides with anisotropy, and an extension of the planar circuit segmentation method. In the area of propagation, a planar transmission line with enhanced nonreciprocity is presented, and another study is given on exciting Zenneck-wave-like fields on the surface of the earth or ocean. In the scattering area, a novel metasurface is introduced that retro-reflects a circularly polarized wave back to the source, and one more paper experimentally verifies an active cloak that hides a metallic object.

The session presents diverse selection of new numerical techniques for efficient analysis and design of advanced large-scale microwave and multi-physics applications including RF magnetics, integrated circuits, touch-screens, and radiation systems. Novel time- and frequency-domain forward and inverse methods including fast algorithms, matrix-free methods, time-reversal, and uncertainty quantification are featured.

The session focuses on advanced behavioral and statistical device characterization and modeling procedures. The first two papers are devoted to optimized behavioral model extractions starting from device load-pull characterization. The other two contributions deal with the statistical modeling of devices as a result of parametric process variations via X-parameter and large-signal models.

In this session, advances on algorithmic methodologies for complexity reduction in yield estimation and design optimization of RF and microwave circuits are presented. It includes state-of-the-art techniques for error estimation in model order reduction, yield prediction exploiting variable fidelity simulators and response features, as well as space mapping applications to tuning microwave waveguide filters and radar scattering from complex targets.

This session will present advanced analysis, design, and characterization techniques related to nonlinear circuits and systems for wireless communications, including oscillators, power amplifiers and MIMO transceivers.

Novel modeling methods for nonlinear microwave devices will be covered in this session. The session begins with papers on ferrimagnetic frequency-selective limiters. Nonlinear AlGaN/GaN HEMT and varactor modeling methods are then presented. The session closes with a multi-box mixer model and its validation.

Nanoscale devices for RF to THz applications are presented. Ferro-magnetic resonance frequency studies are performed using magnetic nano-wires. A black phosphorus MOSFET is fabricated and characterized for good high frequency performance. A high yield fabrication procedure is discussed for use at 220 GHz. The use of quantum capacitance in graphene is explored for parametric amplifiers and down converters. Inverted scanning microwave microscopy is studied for nanometer-scale imaging in platinum diselenide. Magnetic nano-particles are used for developing a compact band-stop filter.

This session includes THz calibration elements, probes for differential sub-THz and dielectric waveguide, and systems for extreme impedance measurement. The session concludes with an analysis of bias in Monte Carlo uncertainty evaluation. This is a joint IMS/ARFTG session

This session includes MIMO antenna array characterizations, GaN transistor transient measurements, a calibration method for oscilloscope using a large signal network analyzer (LSNA), and a phase calibration improvement for the LSNA. This is a joint IMS/ARFTG session