Scheduled System Maintenance
On Friday, October 20, IEEE Xplore will be unavailable from 9:00 PM-midnight ET. We apologize for the inconvenience.

# IEEE Transactions on Circuits and Systems II: Express Briefs

## Issue 9 • Sept. 2017

The purchase and pricing options are temporarily unavailable. Please try again later.

## Filter Results

Displaying Results 1 - 25 of 27

Publication Year: 2017, Page(s):C1 - C4
| PDF (529 KB)
• ### IEEE Transactions on Circuits and Systems—II:Express Briefs publication information

Publication Year: 2017, Page(s): C2
| PDF (65 KB)
• Analog and Mixed Mode Circuits and Systems
• ### Package-Level Reconfiguration of RF Matching Networks Using SMD Components

Publication Year: 2017, Page(s):997 - 1001
| | PDF (999 KB) | HTML

Digital power amplifiers provide an unprecedented level of flexibility in their ability to operate on different signals using simple reprogramming of the digital signal processing, but their output matching networks must be redesigned for different frequency bands. This involves a redesign of part of the back-end-of-line mask set at a great cost. We present a package-level reconfiguration techniqu... View full abstract»

• ### A Linearization Technique for Differential OTAs

Publication Year: 2017, Page(s):1002 - 1006
| | PDF (1168 KB) | HTML

This brief presents an operational transconductance amplifier (OTA) linearization technique that is applied to a low-noise amplifier (LNA) and an OTA-C filter. Simulations show the effectiveness of the proposed technique on the LNA, whose noise and gain performance remain unaffected while the linearity is significantly improved. Measurements of the 80-MHz fourth order Butterworth OTA-C filter are ... View full abstract»

• ### A Gene–Protein–miRNA Electronic Oscillator

Publication Year: 2017, Page(s):1007 - 1011
| | PDF (1034 KB) | HTML

This brief presents an electronic oscillator circuit model mimicking a unique relationship among six genes. Three out of the six genes are employed to synthesize proteins, while the remaining three are their complementary micro-ribonucleic acid (miRNA) genes degrading the messenger-RNA transcripts at the translational level of gene expression. The circuit runs without any external stimulus because... View full abstract»

• ### A Capacitor-DAC-Based Technique For Pre-Emphasis-Enabled Multilevel Transmitters

Publication Year: 2017, Page(s):1012 - 1016
Cited by:  Papers (1)
| | PDF (1219 KB) | HTML

This brief presents a capacitor digital-to-analog converter (DAC) based technique that is suitable for pre-emphasis-enabled multilevel wireline transmitter design in voltage mode. Detailed comparisons between the proposed technique and conventional direct-coupling-based as well as resistor-DAC-based multilevel transmitter design techniques are given, revealing potential benefits in terms of speed,... View full abstract»

• ### Matching for Concurrent Harmonic Sensing in an ${M}$ -Phase Mixer-First Receiver

Publication Year: 2017, Page(s):1017 - 1021
| | PDF (682 KB) | HTML

This brief proposes the use of passive mixer-first receiver topology to sense signals at higher LO harmonics. The advantages of such a receiver include sensing of multiple bands concurrently and reduced tuning range requirements in the frequency synthesizer. The single and joint harmonic matching performance of a zero-IF M-phase mixer-first receiver is analyzed. It is shown that minimum possible r... View full abstract»

• ### Compact Millimeter-Wave CMOS Wideband Three-Transmission-Zeros Bandstop Filter Using a Single Coupled-Line Unit

Publication Year: 2017, Page(s):1022 - 1026
| | PDF (968 KB) | HTML

This brief presents the design and implementation of millimeter-wave ultra-wide bandstop filter (BSF) using a standard 0.18-μm CMOS technology. The BSF configuration consists of a single coupled-line resonator shorted at the middle, which operates as not only a resonant element but also an open stub. The BSF realizes three transmission zeros in the stopband that results in sharp skirt selec... View full abstract»

• ### A 0.3-V 1- $\mu \text{W}$ Super-Regenerative Ultrasound Wake-Up Receiver With Power Scalability

Publication Year: 2017, Page(s):1027 - 1031
| | PDF (1219 KB) | HTML

This brief presents an ultralow-power wake-up receiver using ultrasound for Internet of Things applications. To achieve both high sensitivity and low power consumption, we propose a Colpitts-oscillator-based super-regenerative receiver (COSR). Owing to the simple architecture of the proposed COSR, a lowest supply voltage operation of 0.3 V and a smallest area are achieved. Furthermore, the power c... View full abstract»

• ### A Power-Efficient Signal-Specific ADC for Sensor-Interface Applications

Publication Year: 2017, Page(s):1032 - 1036
| | PDF (1484 KB) | HTML

A novel signal-specific power-efficient analog-to-digital converter (ADC) is proposed for sensor-interface applications. Instead of digitizing each analog sample independently, the proposed ADC determines the digital code corresponding to each new input sample by digitizing the difference of two consecutive samples. Therefore, for the applications with low-varying input signals, such as image sens... View full abstract»

• ### An Integrated Dual-Mode CMOS Power Amplifier With Linearizing Body Network

Publication Year: 2017, Page(s):1037 - 1041
| | PDF (1442 KB) | HTML

A dual-mode radio frequency CMOS power amplifier (PA) for Internet of Things application is presented, which is integrated with the other circuits in a 55-nm bulk CMOS process. The low-power mode is achieved by reducing the number of turn-on power transistors, which are also used for linearization. The PA has a gain control scheme that functions by controlling the transconductance (gm) ... View full abstract»

• Circuits and Systems for Communications
• ### Improved Sorting Architecture for ${K}$ -Best MIMO Detection

Publication Year: 2017, Page(s):1042 - 1046
| | PDF (1422 KB) | HTML

This brief presents an improved sorting architecture for K-best multiple-input multiple-output (MIMO) detection. In the proposed architecture, two properties of the K-best MIMO detection are exploited for simplifications: the order among siblings from the same parent node can be easily identified; the order among the K-best nodes is dispensable. Besides, the generalized mergesort-based architectur... View full abstract»

• ### Tunable Dual-Band Filter and Diplexer Based on Folded Open Loop Ring Resonators

Publication Year: 2017, Page(s):1047 - 1051
| | PDF (1407 KB) | HTML

Tunable dual-band filter and diplexer based on folded open loop ring resonators (OLRRs) are proposed in this brief. Two pairs of OLRRs of different center frequencies are utilized to couple with microstrip transmission lines in these two devices, and there is no extra matching network in the diplexer structure. Maximal magnetic coupling and high isolation can be obtained by placing the resonators ... View full abstract»

• ### High-Pass Negative Group Delay RC-Network Impedance

Publication Year: 2017, Page(s):1052 - 1056
| | PDF (710 KB) | HTML

This brief describes a synthesis of high-pass negative group delay (NGD) network impedance. The fundamental expression of the high-pass NGD canonical transfer function is established. Based on the circuit impedance equivalent principle, the high-pass NGD first-order network that is constituted by RC lumped elements is identified. The identified topology basic NGD characteristics are formulated and... View full abstract»

• ### Low-Power LDPC-CC Decoding Architecture Based on the Integration of Memory Banks

Publication Year: 2017, Page(s):1057 - 1061
| | PDF (1029 KB) | HTML

This brief proposes a low-power low-density parity check convolutional code (LDPC-CC) decoder that is fully compatible with the IEEE 1901 standard. The proposed architecture merges multiple memory banks into one to make it consume much less power than the conventional architecture. Memory operations conducted by all the unit processors are synchronized in the proposed decoder to merge the memory a... View full abstract»

• ### A 38 pJ/b Optimal Soft-MIMO Detector

Publication Year: 2017, Page(s):1062 - 1066
| | PDF (840 KB) | HTML

An optimal soft multiple-input multiple-output (MIMO) detector is proposed with linear complexity for a general spatial multiplexing system with two transmitting symbols and NR ≥ 2 receiving antennas. The computational complexity of the proposed scheme is independent of the operating signal-to-noise ratio and grows linearly with the constellation order. It provides the soft maxim... View full abstract»

• Computer Aided Design and Electronic Design Automation
• ### An Approximate Transfer Function Model of Two Serially Connected Heterogeneous Transmission Lines

Publication Year: 2017, Page(s):1067 - 1071
| | PDF (905 KB) | HTML

This brief presents an approximate transfer function model of two heterogeneous transmission lines connected in series. The proposed model is simple, intuitive, and can accurately describe the frequency response of various serially connected heterogeneous interconnects which satisfy a validity condition. The exact error of the proposed model is also provided. According to our analysis, the validit... View full abstract»

• Power Systems and Electronic Circuits
• ### Adaptive Tuning of Large-Signal Resonant Circuits Using Phase-Switched Fractional Capacitance

Publication Year: 2017, Page(s):1072 - 1076
| | PDF (1001 KB) | HTML

Inductively coupled systems used in applications such as RFID and wireless power often require high Q factor resonant transmitters to maximize the magnetic field and achieve high overall efficiency. However, these are sensitive to environmental detuning as well as component tolerances. Existing methods for accurate tuning require search algorithms, usually requiring the suspension of normal operat... View full abstract»

• Control Theory and Systems
• ### Hysteresis Switching Control of the Ćuk Converter Operating in Discontinuous Conduction Modes

Publication Year: 2017, Page(s):1077 - 1081
| | PDF (359 KB) | HTML

In this brief, the behaviors of the Ćuk converter operating in discontinuous conduction modes (DCMs) under a hysteresis controlled switching are studied. The hysteresis switching is defined in terms of values of a common quadratic Lyapunov function and Lyapunov stability conditions are established for all possible switchings, which represent a DCM of operation. A set of simulation results ... View full abstract»

• ### Fast Adaptive Finite-Time Voltage Regulation Control Algorithm for a Buck Converter System

Publication Year: 2017, Page(s):1082 - 1086
| | PDF (524 KB) | HTML

A new voltage regulation control algorithm is designed for the buck-type dc-dc converter system in the presence of unknown input voltage and load variations. To enhance the voltage regulation time by using the finite-time control theory, a new fast voltage regulation control algorithm is designed that can guarantee that the output voltage converges to the reference voltage in a finite time. To add... View full abstract»

• ### Optimal Control and Stabilization for Networked Control Systems With Packet Dropout and Input Delay

Publication Year: 2017, Page(s):1087 - 1091
| | PDF (269 KB) | HTML

This brief is concerned with the control problem for discrete-time networked control systems. It is assumed that state and control signals transmit through an unreliable communication channel, where packet dropout and input delay occur simultaneously. The main contributions are twofold. First, we obtain the optimal LQR controller, which is a linear function of the optimal state estimator, with the... View full abstract»

• Digital Circuits and Systems and VLSI
• ### Compact Constant Weight Coding Engines for the Code-Based Cryptography

Publication Year: 2017, Page(s):1092 - 1096
| | PDF (785 KB) | HTML

We present here a more memory efficient method for encoding binary information into words of prescribed length and weight. Existing solutions either require complicated float point arithmetic or additional memory overhead, making it a challenge for resource constrained computing environment. The solution we propose here solves these problems yet obtains better coding efficiency by a memory efficie... View full abstract»

• ### Energy-Efficient Hardware Architecture of Self-Organizing Map for ECG Clustering in 65-nm CMOS

Publication Year: 2017, Page(s):1097 - 1101
| | PDF (1294 KB) | HTML

An energy-efficient hardware architecture of a self-organizing map (SOM) for ECG clustering is proposed. It detects an R-peak, reconstructs the QRS complex around it, and clusters the complex by calculating the Euclidean distance between the complex and the weight vectors of each cell in the SOM network (i.e., 5×5 cells). In the operation mode, the cluster ID related to the minimum Euclidea... View full abstract»

• ### A Scalable High-Performance Priority Encoder Using 1D-Array to 2D-Array Conversion

Publication Year: 2017, Page(s):1102 - 1106
| | PDF (1430 KB) | HTML

In our prior study of an L-bit priority encoder (PE), a so-called one-directional-array to two-directional-array conversion method is deployed to turn an L-bit input data into an M × N-bit matrix. Following this, an N-bit PE and an M-bit PE are employed to obtain a row index and column index. From those, the highest priority bit of L-bit input data is achieved. This brief extends our previo... View full abstract»

• Nonlinear Circuits and Systems
• ### A Novel Hardware-Efficient Cochlea Model Based on Asynchronous Cellular Automaton Dynamics: Theoretical Analysis and FPGA Implementation

Publication Year: 2017, Page(s):1107 - 1111
| | PDF (781 KB) | HTML

A novel cochlear model based on the nonlinear dynamics of an asynchronous cellular automaton is presented. Theoretical bifurcation analyses show that the model can mimic a nonlinear vector field of a differential equation cochlea model. It is then shown that the presented model can reproduce biologically measured frequency tuning curves of multiple species. In addition, the presented model is impl... View full abstract»

## Aims & Scope

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief

Chi K. Michael Tse
Dept. of Electronic and Information Engineering
Hong Kong Polytechnic University
Hunghom, Hong Kong
cktse@ieee.org