# IEEE Transactions on Microwave Theory and Techniques

## Volume 65 Issue 11  Part 2 • Nov. 2017

This issue contains several parts.Go to:  Part 1

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## Filter Results

Displaying Results 1 - 25 of 29

Publication Year: 2017, Page(s):C1 - C4
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2017, Page(s): C2
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• ### Guest Editorial

Publication Year: 2017, Page(s):4529 - 4530
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• ### Design Criteria in Sizing Phase-Change RF Switches

Publication Year: 2017, Page(s):4531 - 4540
Cited by:  Papers (3)
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This paper presents design criteria for four-terminal phase-change (PC) RF switches as a function of their dimensions, (heater width, RF gap, and barrier thickness), materials, and connection topology. Reducing heater width is shown to reduce switch actuation power, with this reduction ultimately being limited by the maximum allowed heater current density, as set by projected reliability. Narrower... View full abstract»

• ### X-Parameter Characterization of TC SAW Filters With Enhanced Dynamic Range

Publication Year: 2017, Page(s):4541 - 4549
Cited by:  Papers (1)
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Increasing the integration of radio frequency frontend modules for mobile communication devices results in rising power densities within the components. Additionally, advanced communication techniques demand for more frequency bands to be supported. As a result, the probability of significant nonlinear emissions disturbing adjacent channels increases, and accurate modeling of the device's response... View full abstract»

• ### Prediction of Nonlinear Distortion in Wideband Active Antenna Arrays

Publication Year: 2017, Page(s):4550 - 4563
Cited by:  Papers (12)
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In this paper, we propose a technique for comprehensive analysis of nonlinear and dynamic characteristics of multi-antenna transmitters (TXs). The analysis technique is enabled by the development of a Volterra series-based dual-input model for power amplifiers (PAs), which is capable of considering the joint effects of PA nonlinearity, antenna crosstalk, and mismatch for wideband modulated signals... View full abstract»

• ### Quasi-Lumped-Element Filter-Integrated Single-Pole Double-Throw Switch

Publication Year: 2017, Page(s):4564 - 4571
Cited by:  Papers (3)
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In this paper, the capacitively coupled LC resonators with loaded p-i-n diodes are used to develop fixed-response filter-integrated single-pole double-throw (SPDT) switch. The filter-integrated on-state channel with reverse-biased p-i-n diodes can be designed and synthesized using the coupled-resonator filter theory, and the off-state channel with forward-biased p-i-n diodes exhibits high suppress... View full abstract»

• ### Performance Analysis of Reconfigurable Bandpass Filters With Continuously Tunable Center Frequency and Bandwidth

Publication Year: 2017, Page(s):4572 - 4583
Cited by:  Papers (3)
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This paper presents a comparison and performance evaluation of three different technologies for the implementation of tunable filters utilizing semiconductor varactors, commercially available barium strontium titanate (BST) thin film and screen-printed BST thick-film varactors. To identify the most suitable technology for applications in low power receiving up to high-power transmitting stages, th... View full abstract»

• ### Frequency-Tunable Tri-Function Filter

Publication Year: 2017, Page(s):4584 - 4592
Cited by:  Papers (2)
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In this paper, we present a reconfigurable filter capable of having three different responses, such as bandstop, bandpass, and all-pass responses. For designing the tri-function filter, we have developed a new topology containing coupled resonators and a switch-embedded transmission line running from the input to output ports. A bandpass response can be obtained by opening the switches embedded in... View full abstract»

Publication Year: 2017, Page(s):4593 - 4605
Cited by:  Papers (16)
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A class of frequency-reconfigurable input-reflectionless/absorptive RF/microwave filters is presented. They consist of tunable complementary-duplexer architectures that are composed of a main and an auxiliary channel with opposite filtering transfer functions. By loading the auxiliary channel with a reference-impedance resistor and by taking the output node of the main channel as the output termin... View full abstract»

• ### Differential Dual-Band Filters With Flexible Frequency Ratio Using Asymmetrical Shunt Branches for Wideband CM Suppression

Publication Year: 2017, Page(s):4606 - 4615
Cited by:  Papers (6)
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In this paper, a group of differential dual-band bandpass filters based on a single quad-mode stub-loaded twin-ring resonator (TRR) are presented, which utilize asymmetrical shunt branches for common-mode (CM) suppression. Under differential-mode (DM) operation, the stub-loaded TRR manifests quad-mode characteristic for dual-band design. The frequency ratio of the two passbands can be flexibly sel... View full abstract»

• ### Twofold Reflectionless Filters of Inverse-Chebyshev Response With Arbitrary Attenuation

Publication Year: 2017, Page(s):4616 - 4620
Cited by:  Papers (3)
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A twofold circuit is introduced as a reflectionless filter having inverse-Chebyshev response with arbitrary attenuation in the reject band. The proposed configuration consists of two complementary circuits. A methodology and some equations are described to exactly design a prototype odd order low-pass reflectionless filter. Finally, a filter is built and measured to verify the presented configurat... View full abstract»

• ### Adaptive RF Front-Ends Using Electrical-Balance Duplexers and Tuned SAW Resonators

Publication Year: 2017, Page(s):4621 - 4628
Cited by:  Papers (8)
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This paper proposes an adaptive RF front-end (RFFE) architecture that uses an electrical-balance duplexer (EBD) and tuned surface acoustic wave (SAW) resonators to enable adaptive dual-frequency isolation suited for LTE's frequency-division duplex (FDD) mode of operation. Alternatively, in the in-band full-duplex (IBFD) mode, the EBD cancels the in-band TX self-interference directly at RF for incr... View full abstract»

• ### Design Consideration on Converged Rx SAW Duplexer Module for Multiband RF Front End

Publication Year: 2017, Page(s):4629 - 4635
Cited by:  Papers (1)
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This paper presents the design consideration on a converged Rx surface acoustic wave (SAW) duplexer module for integrated RF front end. Two different matching-circuit and notch-circuit configurations were examined with importance placed on electrical characteristics (insertion loss and isolation of duplexer) and simplification of module, respectively. From circuit simulations and examinations, we ... View full abstract»

• ### Compact High-Isolation LTCC Diplexer Using Common Stub-Loaded Resonator With Controllable Frequencies and Bandwidths

Publication Year: 2017, Page(s):4636 - 4644
Cited by:  Papers (4)
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In this paper, a low-temperature co-fired ceramic (LTCC) diplexer is presented with compact size and high isolation. By using the common stub-loaded resonator shared by two channel filters, combining and matching networks are eliminated and only three resonators are used to design the two second-order channel filters, resulting in simple structure and miniaturized size. A novel transmission path i... View full abstract»

• ### A CMOS Antiphase Power Amplifier With an MGTR Technique for Mobile Applications

Publication Year: 2017, Page(s):4645 - 4656
Cited by:  Papers (2)
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In this paper, a CMOS antiphase power amplifier (PA) is presented with a multigate transistor (MGTR) technique that improves its linearity. The drive stage of the PA is biased in the subthreshold region, such as in class C, to realize the antiphase technique. The nonlinearity of the power stage of the PA is canceled out using the third-order intermodulation distortion and phase distortion of the d... View full abstract»

• ### Wide-Bandwidth and High-Linearity Envelope- Tracking Front-End Module for LTE-A Carrier Aggregation Applications

Publication Year: 2017, Page(s):4657 - 4668
Cited by:  Papers (3)
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The envelope-tracking front-end module (ETFEM) consisting of an envelope-tracking supply modulator (ETSM), a dual-power-mode power amplifier (PA), and a single-poledouble-throw (SPDT) switch is proposed for the Long-Term Evolution-Advanced (LTE-A) intraband carrier aggregation (CA) signal. The linear stage of ETSM is implemented by introducing the dual-path crossover current-reuse mechanism to obt... View full abstract»

• ### LO Generation With a Phase Interpolator Digital-to-Time Converter

Publication Year: 2017, Page(s):4669 - 4676
Cited by:  Papers (1)
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This paper shows the generation of a local oscillator (LO) signal for cellular transceivers by means of a phase-locked loop and a phase interpolator (PI) digital-to-time converter (DTC). The PI-DTC allows arbitrary frequency shifts over a wide range. We derive a closed-form description of the spurs in the spectrum of the LO signal caused by quantization and nonlinear effects for the PI-DTC. Furthe... View full abstract»

• ### A +25-dBm IIP3 1.7–2.1-GHz FDD Receiver Front End With Integrated Hybrid Transformer in 28-nm CMOS

Publication Year: 2017, Page(s):4677 - 4688
Cited by:  Papers (3)
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A highly linear receiver (RX) front end with integrated hybrid transformer (HT) for frequency-division duplexing mobile communications is reported. The HT, implemented with a three-winding coplanar transformer, is used to interface the RX front end with the antenna and the power amplifier. The primary is driven at its center tap with the transmitted signal and at one input with the antenna signal,... View full abstract»

• ### A Reconfigurable Dual-Frequency Narrowband CMOS LNA Using Phase-Change RF Switches

Publication Year: 2017, Page(s):4689 - 4702
Cited by:  Papers (1)
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This paper presents a dual-band low-noise amplifier (LNA) that can be reversibly configured between 3 and 5 GHz using a phase-change (PC) RF switch. Simultaneous noise and conjugate input matching is achieved at the two frequencies using a single PC RF switch and coupled source inductors, thereby minimizing integration complexity and enabling a compact design roughly equal in size to a single-band... View full abstract»

• ### A 28-GHz Low-Power Phased-Array Receiver Front-End With 360° RTPS Phase Shift Range

Publication Year: 2017, Page(s):4703 - 4714
Cited by:  Papers (12)
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A low-power 28-GHz phased-array receiver (RX) front end is presented that incorporates a low-power low-noise amplifier (LNA) and a passive reflection-type phase shifter (RTPS) capable of 360° phase shift with 5-b phase resolution and low gain variation. Passive phase shifters are limited by tradeoffs between phase resolution, insertion loss, and phase shift range. The proposed RTPS load design and... View full abstract»

• ### Active Eight-Path Filter and LNA With Wide Channel Bandwidth and Center Frequency Tunability

Publication Year: 2017, Page(s):4715 - 4723
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This paper presents a differential eight-path bandpass filter with tunable center frequency and bandwidth. Fully differential Miller compensated Butterworth Gm-C biquads are used to implement the active low-pass filters required in the structure of the eight-path filter. The -3-dB bandwidth of each Gm-C filter can be tuned from 2.5 to 51 MHz by means of six digital bits. The center frequency of th... View full abstract»

• ### A Wideband All-Digital CMOS RF Transmitter on HDI Interposers With High Power and Efficiency

Publication Year: 2017, Page(s):4724 - 4743
Cited by:  Papers (1)
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This paper demonstrates a wideband CMOS all-digital polar transmitter with flip-chip connection to three high-density-interconnection PCB interposers. The interposers are designed to extract power from a CMOS open-drain inverse Class-D power amplifier core. For a wide frequency range from 0.7 to 3.5 GHz, continuous-wave output power higher than 25.5 dBm and drain efficiency (DE) above 40% are demo... View full abstract»

• ### A 21-dBm $I/Q$ Digital Transmitter Using Stacked Output Stage in 28-nm Bulk CMOS Technology

Publication Year: 2017, Page(s):4744 - 4757
Cited by:  Papers (1)
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This paper proposes the use of a high-power stacked output stage for a current-based in-phase/quadrature (I/Q) direct digital to RF modulator (DDRM) in bulk CMOS. The main nonlinearities associated with implementing the stacked transistor on top of the I/Q DDRM are easily compensated by a simple 2-D digital predistortion. A prototype implemented in 28-nm bulk CMOS achieves a saturated output power... View full abstract»

• ### Built-in-Self-Calibration for I/Q Imbalance in Wideband Millimeter-Wave Gigabit Transmitters

Publication Year: 2017, Page(s):4758 - 4769
Cited by:  Papers (4)
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This paper addresses the estimation and compensation of I/Q imbalance, one of the most prominent impairments found in wideband zero-intermediate frequency transceivers (TRxs). The I/Q imbalance encountered in this kind of TRx comprises not only frequency-selective gain and phase imbalance but also delay imbalance. Unless appropriate compensation is applied, the I/Q imbalance significantly degrades... View full abstract»

## Aims & Scope

The IEEE Transactions on Microwave Theory and Techniques focuses on that part of engineering and theory associated with microwave/millimeter-wave components, devices, circuits, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, and industrial, activities. Microwave theory and techniques relates to electromagnetic waves usually in the frequency region between a few MHz and a THz; other spectral regions and wave types are included within the scope of the Society whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design..

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## Meet Our Editors

Editor-in-Chief
Luca Perregrini
luca.perregrini@unipv.it

Editor-in-Chief
Jose Carlos Pedro
edit.tmtt@ua.pt