<![CDATA[ IEEE Transactions on Microwave Theory and Techniques - new TOC ]]>
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TOC Alert for Publication# 22 2018February 19<![CDATA[Table of contents]]>662C1620240<![CDATA[IEEE Transactions on Microwave Theory and Techniques publication information]]>662C2C286<![CDATA[Guest Editorial]]>662621622186<![CDATA[Robust Calculation of the Modes in Parabolic Cylinder Metallic Waveguides by Means of a Root-Finding Method for Bivariate Functions]]>$10^{-5}$ for more than 1600 modes).]]>6626236322561<![CDATA[Modeling of Inhomogeneous and Lossy Waveguide Components by the Segmentation Technique Combined With the Calculation of Green’s Function by Ewald’s Method]]>6626336422848<![CDATA[Face-Centered Anisotropic Surface Impedance Boundary Conditions in FDTD]]>6626436501847<![CDATA[An Efficient Technique to Assess the Convergence of the Multimode Equivalent Network for Waveguide Devices]]>6626516592087<![CDATA[From Microscopic to Macroscopic Description of Composite Thin Panels: A Road Map for Their Simulation in Time Domain]]>6626606682338<![CDATA[Efficient Decoupling Capacitor Placement Based on Driving Point Impedance]]>6626696772440<![CDATA[Magnetic Field-Assisted Radiation Enhancement From a Large Aperture Photoconductive Antenna]]>6626786871842<![CDATA[Passive Intermodulation Due to Conductor Surface Roughness]]>6626886992455<![CDATA[Advanced Compact Setups for Passive Intermodulation Measurements of Satellite Hardware]]>6627007103358<![CDATA[Improvement of Energy Transfer in a Cavity-Type 915-MHz Microwave Plasma Source]]>$n_{e}$ and collisions frequency $nu $ of electrons in the plasma. Based on these data, a more energy efficient MPS could be designed. Second, to verify the numerical prediction, a modified version of the MPS was built and the improvement in the MPS energy efficiency was proved experimentally.]]>6627117161107<![CDATA[Exploring the Tuning Range of Channel Filters for Satellite Applications Using Electromagnetic-Based Computer Aided Design Tools]]>6627177252337<![CDATA[Substrate-Integrated Waveguide Filters Based on Dual-Mode Air-Filled Resonant Cavities]]>6627267364113<![CDATA[Compact Wideband Balanced Bandpass Filters With Very Broad Common-Mode and Differential-Mode Stopbands]]>$f_{0} = 1.8$ GHz, 48% fractional bandwidth (corresponding to 55.4% −3-dB bandwidth), and 0.04-dB ripple level. The filter is automatically synthesized by means of an aggressive space-mapping software tool, specifically developed, and two (pre- and post-) optimization algorithms, necessary to determine the transmission-zero frequencies. The designed filter is as small as $0.48lambda _{g} times 0.51lambda _{g}$ , where $lambda _{g}$ is the guided wavelength at the central filter frequency, and the differential-mode stopband extends up to at least 6.5 GHz with more than 22-dB rejection. The common-mode suppression is better than 28 dB from dc up to at least 6.5 GHz.]]>6627377503144<![CDATA[On the Techniques to Develop Millimeter-Wave Textile Integrated Waveguides Using Rigid Warp Threads]]>6627517614929<![CDATA[The Observation of Dispersionless Superluminal Propagation in a Non-Foster Loaded Waveguide and Its Fundamental Limitations]]>6627627732264<![CDATA[An Extrapolation Method for Efficient and Accurate Numerical Dosimetry of Resonant Exposure Setups]]>${E}$ -field envelope recorded during the finite-difference time-domain calculation. The extrapolation method was validated when applied to a waveguide loaded with two or four 35-mm-diameter Petri dishes at the ${H}$ -field maximum for the resonant exposure at 1800 MHz. With the extrapolation, the computational time was reduced by 80% to derive the incident power with the error reduction of 93%, as compared to the calculation with the current mechanism until the accepted wave stability. For the SAR, the computational time was reduced by 77%. With the proper position and weighting of the ${E}$ -field samples, the error of the averaged SAR in the cell monolayer was reduced from 4.62% to 1.31%. The proposed method applies to the scenario where the resonant frequency of the loaded setup drifts away from the driven frequency so that an oscillating ${E}$ -field envelope is available.]]>6627747832563<![CDATA[110-GHz Through-Substrate-Via Transition Based on Copper Nanowires in Alumina Membrane]]>6627847903692<![CDATA[Bandwidth Analysis of RF-DC Converters Under Multisine Excitation]]>RC filter, as a main property of the rectifier circuit. Our model predicts the measured power conversion efficiency and voltage with an error below 0.1 and 0.2 V, respectively.]]>6627918022279<![CDATA[Magnetodynamic Study of Spin Resonances in Cylindrical and Spherical YIG Samples]]>$text {HE}_{111}^{+}$ mode, satisfies the magnetic plasmon resonance condition defined by the effective permeability ${mu }_{r}approx {-1}$ for cylindrical samples or ${mu }_{r}approx {-2}$ for spherical samples. Experiments confirmed the existence of surface resonances, identified as magnetic plasmons, and volume resonances. Comparison between the MD model, the quasi-magnetostatic model, and the perturbation theory was performed and limitations of the approximate approaches are shown.]]>6628038121581<![CDATA[Synthesis of Coupling Matrix for Diplexers Based on a Self-Adaptive Differential Evolution Algorithm]]>ad hoc analysis is included. Experiments and comparisons show the high performance of SADEC and clear advantages compared with the state-of-the-art global optimization methods. SADEC is also applicable to filter coupling matrix synthesis and is downloadable.]]>6628138211814<![CDATA[Circuit Model Extraction of Parallel-Connected Dual-Passband Coupled-Resonator Filters]]>6628228301788<![CDATA[A Two-Port Nonlinear Dynamic Behavioral Model of RF PAs Subject to Wideband Load Modulation]]>6628318446104<![CDATA[Accurate Modeling of GaN HEMT RF Behavior Using an Effective Trapping Potential]]>6628458572223<![CDATA[On the Differential Input Impedance of an Electro-Explosive Device]]>6628588641853<![CDATA[Nonlinear Characterization for Microstrip Circuits With Low Passive Intermodulation]]>6628658742113<![CDATA[Modeling and Parameter Extraction for the Metal Surface Roughness Loss Effect on Substrate Integrated Waveguides From S-Parameters]]>6628758821945<![CDATA[Microwave Heating Visualization for Carbon Fibers Composite Material: Development of Tunable Microstrip Structures]]>6628838881177<![CDATA[Bridged-T Coil for Miniature Dual-Band Branch-Line Coupler and Power Divider Designs]]>$2.8~text {mm} times 1.4$ mm while the proposed 2.4/5.5-GHz dual-band power divider in IPD exhibits a very small circuit size of only $1.8~text {mm} times 1.7$ mm. To the best of our knowledge, the proposed dual-band branch-line coupler is the smallest one ever reported while the circuit size of the proposed dual-band power divider is comparable to the smallest in the literature.]]>6628899013914<![CDATA[Design of 600-W Low-Loss Ultra-Wideband Ferriteless Balun]]>6629029102624<![CDATA[Magnet-Less Circulators Based on Spatiotemporal Modulation of Bandstop Filters in a Delta Topology]]>$LC$ filters are modulated in time with a suitable phase pattern, a synthetic angular-momentum bias can be effectively imparted to the junction and a transmission window opens at one of the output ports, thus realizing a circulator. We develop a rigorous small-signal linear model and find analytical expressions for the harmonic $S$ -parameters of the proposed circuit, which significantly facilitate the design process. We validate the theory with simulations and further discuss the large-signal response, including power handling, nonlinearity, and noise performance. Finally, we present measured results with unprecedented performance in all metrics for a printed circuit board prototype using off-the-shelf discrete components.]]>6629119263643<![CDATA[Cost-Effective Gap Waveguide Technology Based on Glide-Symmetric Holey EBG Structures]]>6629279343500<![CDATA[Planar Multifrequency Wideband Bandpass Filters With Constant and Frequency Mappings]]>$LC$ circuit (e.g., frequency invariant admittances, capacitors, and ideal inverters) as frequency dependent. It is consistent with practical planar circuits and caters to a wide frequency range. Following the classic single-to-multiband transformation, a new frequency mapping function is proposed by incorporating this constant mapping idea. With these two mapping functions, a direct relation between the $LC$ circuit and its microstrip counterpart is established. Therefore, the multifrequency wideband BPF is readily designed from a lowpassing $LC$ circuit to the transmission line circuit. A ladder-type Chebyshev filter and a trisection filter with the general Chebyshev response have been designed as examples. The first one is a dual-band case exhibiting a wide bandwidth for each passband. The second filter is a triple-band one showing a large frequency ratio between the first and third passband. Both examples experimentally validate the proposed constant and frequency mapping technique.]]>6629359422387<![CDATA[Frequency- and Bandwidth-Tunable Bandstop Filter Containing Variable Coupling Between Transmission Line and Resonator]]>6629439533692<![CDATA[Dimensional Synthesis of Evanescent-Mode Ridge Waveguide Bandpass Filters]]>6629549611544<![CDATA[An Integrated Ka-Band Diplexer-Antenna Array Module Based on Gap Waveguide Technology With Simple Mechanical Assembly and No Electrical Contact Requirements]]>$16times 16$ slot array antenna. The proposed integrated diplexer-antenna module consists of three distinct metal layers without the need of electrical contacts between the different layers based on the recently introduced gap waveguide technology. The designed module has two channels of 650-MHz bandwidths each with center frequencies 28.21 and 29.21 GHz. The fabricated prototype provides good radiation and input impedance characteristics. The measured input reflection coefficients for both Tx/Rx ports are better than −13 dB with the measured antenna efficiency better than 60% in the designed passband, which includes the losses in the diplexer.]]>6629629725124<![CDATA[A Linear Differential Transimpedance Amplifier for 100-Gb/s Integrated Coherent Optical Fiber Receivers]]>$Omega $ , 33 GHz of 3-dB bandwidth, 12.2 pA/$sqrt {text {Hz}}$ of average input-referred noise current density with the photodiode, 900 mV_{pp} of maximum differential output swing, less than 1% of THD for 600 mV_{pp} differential output swing, and 500 $mu text{A}_{text {pp}}$ differential input current. The linearity of the TIA is furthermore demonstrated with PAM4 measurements at 25 Gbaud. The dual TIA chip is fabricated in a 0.13-$mu text{m}$ SiGe:C BiCMOS technology, dissipates 436 mW of power and occupies 2 mm^{2} of area.]]>6629739864556<![CDATA[Analysis and Design of Broadband <italic>LC</italic>-Ladder FET LNAs Using Noise Match Network]]>LC-ladder input network of a broadband inductively source-degenerated common-source (CS) field effect transistor (FET) low-noise amplifier (LNA) is established through noise transformation matrix to derive the noise parameters of a broadband LNA. Analytical formulas for the noise factors of a CS FET LNA with a three-section LC-ladder input network are thus obtained based on the design algorithm of optimal noise and input match developed in this paper. Two 3.7–10.5 GHz two-stage LNAs of the same topology are demonstrated using 0.15-$mu text{m}$ pHEMT technology to validate the design methodology. One LNA has all the fully integrated inductors and the other uses two on-chip inductors replaced by two high-Q bondwire inductors for better noise performance. The measurement results show 11-dB power gain with 2.1-dB noise figure for the LNA with the fully integrated inductors and 11-dB power gain with 1.6-dB noise figure for the LNA with two bondwire inductors, respectively.]]>66298710012094<![CDATA[High-Efficiency Input and Output Harmonically Engineered Power Amplifiers]]>$alpha $ considering both source and load terminations. Output power and drain efficiency are then computed as a function of input nonlinearity, $alpha $ , and output loading conditions. The derived formulations allow to investigate the design sensitivity to input nonlinearity and its impact on fundamental design space. The impact of source harmonics is evaluated using harmonic source pull under different output loading conditions. Thereafter, PA design and implementation has been carried out using NXP 1.95 mm die to confirm the distinctive behavior of class GF and GF^{−1} amplifiers with respect to the input harmonic terminations. For practical validation, four different design cases with different second harmonic source impedances are investigated. At 2.6 GHz, drain efficiencies ranging between 76% and 83% were exhibited depending on the source and load harmonic tuning for each design case. Measurement results confirm the theoretical findings reported in this paper.]]>662100210147274<![CDATA[Design of Multioctave High-Efficiency Power Amplifiers Using Stochastic Reduced Order Models]]>$LC$ -ladder circuit is selected as the matching network (MN). The element values of the MN can be obtained using a synthesizing method based on stochastic reduced order models and Voronoi partition. The MN provides desired impedance in the predefined optimal impedance region at each frequency section. Thus, optimal output power and PAE of the PA can be achieved. To validate the proposed method, two eighth-order low-pass $LC$ -ladder networks are designed as the input and output MNs, respectively. A gallium nitride (GaN) HEMT from Cree is employed as the active device. Packaging parasitic of the transistor has been taken into account. A PA is designed, fabricated, and measured. The measurement results show that the PA can achieve P1 dB PAE of better than 60% over a fractional bandwidth of 160% (0.2–1.8 GHz). The output power is 42–45 dBm (16–32 W), and the gain is 12–15 dB. The performance of the PA outperforms existing broadband high-efficiency PAs in many aspects, which demonstrates the excellence of the proposed method.]]>662101510233280<![CDATA[A Design Strategy for Bandwidth Enhancement in Three-Stage Doherty Power Amplifier With Extended Dynamic Range]]>662102410333608<![CDATA[Broadband Continuous-Mode Doherty Power Amplifiers With Noninfinity Peaking Impedance]]>662103410464086<![CDATA[Compact and Wideband MMIC Phase Shifters Using Tunable Active Inductor-Loaded All-Pass Networks]]>$mu text{m}$ TriQuint pHEMT GaAs monolithic microwave integrated circuits (MMIC) process. Specifically, the presented phase shifter $1 times 3.95~ text {mm}^{2}$ die area and operates within the 1.5–3-GHz band (i.e., 2:1 bandwidth) with 10-dB gain, less than 1.5-dB root-mean-square (rms) gain error and less than 9° rms phase error. Comparison with the state-of-the-art MMIC phase shifters operating in S- and L-bands demonstrates that the presented phase shifter exhibits a remarkable bandwidth performance from a very compact footprint with low-power consumption. Consequently, it presents an alternative for the implementation of wideband phase shifters where all-passive implementations will consume expensive die real estate.]]>662104710572080<![CDATA[Compact and Wideband Millimeter-Wave Antenna-Coupled Detector]]>$1.12lambda _{0}times 1.12lambda _{0}times 0.08lambda _{0}$ is fabricated and characterized, exhibiting a responsivity between 1500 and 3800 V/W over the full Ka-band. The proposed design has the advantages of broad bandwidth, low profile, small footprint, and mechanically stable structure. It can be fabricated using low-cost printed circuit technology, and can easily be configured into a planar 2-D array, making it suitable for low-cost sensing and imaging applications based on small unmanned aerial vehicles.]]>662105810695305<![CDATA[Variable Temperature Broadband Microwave and Millimeter-Wave Characterization of Electrochromic (WO<sub>3</sub>/LiNbO<sub>3</sub>/NiO) Thin Films]]>2). It is shown that the dielectric tunability of the EC material varies between 11.3% (1 GHz) and 7.5% (67 GHz) at 23 °C, and the measured loss tangent varies between 0.012 (OFF, 0 V, state) and 0.025 (ON, 6 V, state). Above room temperature, the devices exhibit higher values of dynamic tunability and a small increase in insertion loss. The results obtained for this first generation of tuneable EC material are encouraging, and many of the dielectric properties are shown to compare favourably with other, more mature bulk tuneable media, such as liquid crystals.]]>662107010802011<![CDATA[Self-Calibrating Transmission-Reflection Technique for Constitutive Parameters Retrieval of Materials]]>662108110891732<![CDATA[Determination of Complex Permittivity of Low-Loss Samples From Position-Invariant Transmission and Shorted-Reflection Measurements]]>$varepsilon _{r}$ ) determination of low-loss samples from transmission and shorted-reflection scattering (S-) parameter measurements while mitigating the effect around Fabry–Perot frequencies. For this goal, we derived a metric function in terms of propagation factor $T$ only and utilized a branch-index-independent expression for unique $varepsilon _{r}$ by eliminating multiple solutions problem. We measured S-parameters of two low-loss samples with substantial thickness, which both introduced a Fabry–Perot effect in the frequency range, and the measurements were conducted to validate our method and compare its accuracy with the accuracy of similar methods in the literature. We also performed an uncertainty analysis to evaluate and improve the accuracy of our method.]]>662109010981628<![CDATA[A Multistate Single-Connection Calibration for Microwave Microfluidics]]>662109911071357<![CDATA[Uncertainty Evaluation of Calibrated Vector Network Analyzers]]>662110811203267<![CDATA[Design and Evaluation of Nonlinear Verification Device for Nonlinear Vector Network Analyzers]]>662112111303036<![CDATA[Extension of NVNA Baseband Measurement for PA Characterization Under Complex Modulation]]>662113111412155<![CDATA[Corrections to “Compact Filtering Rat-Race Hybrid With Wide Stopband”]]>[1, eqs. (2), (3), (7), (10), (11), (15), (17), and (25)]. They should be corrected as follows:]]>66211421143111<![CDATA[Corrections to “Gysel Power Divider With Arbitrary Power Ratios and Filtering Responses Using Coupling Structure”]]>66211441144208<![CDATA[Introducing IEEE Collabratec]]>662114511452111<![CDATA[IEEE Global History Network]]>662114611463207<![CDATA[IEEE Transactions on Microwave Theory and Techniques information for authors]]>662C3C370<![CDATA[[Blank page]]]>662C4C43