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# IEEE Transactions on Circuits and Systems II: Express Briefs

## Filter Results

Displaying Results 1 - 24 of 24

Publication Year: 2014, Page(s):C1 - C4
| PDF (44 KB)
• ### IEEE Transactions on Circuits and Systems—II: Express Briefs publication information

Publication Year: 2014, Page(s): C2
| PDF (137 KB)
• ### A 38- to 40-GHz Current-Reused Active Phase Shifter Based on the Coupled Resonator

Publication Year: 2014, Page(s):917 - 921
Cited by:  Papers (1)
| | PDF (1419 KB) | HTML

A 38- to 40-GHz current-reused active phase shifter based on a coupled resonator is proposed. The coupled resonator is used to increase the phase-shifting range and reduce the gain variation along with the phase-shifting value. The digital controlled artificial dielectric transmission lines are used instead of varactors to achieve high quality and directly digital control, and a current reuse tech... View full abstract»

• ### Constant Mismatch Loss Boundary Circles and Their Application to Optimum State Distribution in Adaptive Matching Networks

Publication Year: 2014, Page(s):922 - 926
Cited by:  Papers (6)
| | PDF (601 KB) | HTML

An adaptive matching network provides a number of states between which it can be reconfigured. At a certain frequency, the matching network transforms a reference impedance to different impedances for the different states. The circuit will be able to match those impedances perfectly to the reference impedance, and impedances close to those will also be fairly well matched. The matching will, howev... View full abstract»

• ### Compensation of Delay Mismatch in a Direct Conversion Transmitter

Publication Year: 2014, Page(s):927 - 931
Cited by:  Papers (4)
| | PDF (780 KB) | HTML

This brief analyzes the effects of the delay mismatch (DM) between in-phase (I) and quadrature (Q) branches of a direct conversion transmitter (DCT) on its image rejection capability. An iterative technique is proposed to compensate for the DM, based on the instantaneous power measurement of the DCT output signal. It is shown that the proposed compensation technique can obtain the true DM value ev... View full abstract»

• ### A $\Delta \Sigma$ -TDC-Based Beamforming Method for Vital Sign Detection Radar Systems

Publication Year: 2014, Page(s):932 - 936
Cited by:  Papers (3)
| | PDF (1619 KB) | HTML

This brief describes a time-to-digital converter (TDC)-based digital-intensive beamforming method that is insensitive to analog delay mismatches. For vital sign detection, the proposed architecture can perform either vector summation (beamforming) or scalar summation (beamsumming) in the digital domain by simply weighting or removing the direct-current term for each channel, thus not requiring ana... View full abstract»

• ### Truly Random Number Generator Based on a Ring Oscillator Utilizing Last Passage Time

Publication Year: 2014, Page(s):937 - 941
Cited by:  Papers (11)
| | PDF (1016 KB) | HTML

This brief covers the design and fabrication of a ring oscillator-based truly random number generator (TRNG), which was fabricated in 0.13-μm CMOS technology. The randomness originates from the phase noise in a ring oscillator. Timing jitter resulting from crossing the threshold multiple times, i.e., last passage time (LPT), is exploited. Previously, the jitter model was developed and appli... View full abstract»

• ### Reconfigurable High-Order Moving-Average Filter Using Inverter-Based Variable Transconductance Amplifiers

Publication Year: 2014, Page(s):942 - 946
Cited by:  Papers (3)
| | PDF (599 KB) | HTML

A charge sampler-based reconfigurable high-order moving-average (MA) filter designed using a temporal MA method is proposed. The proposed filter has a higher gain than conventional MA filters. Moreover, the filter supports variable sizes and orders of MA. That is, the filter has a flexible frequency response by changing not only the sampling frequency but also the MA size (N) and MA order (M). The... View full abstract»

• ### Separate Clock Network Voltage for Correcting Random Errors in ULV Clocked Storage Cells

Publication Year: 2014, Page(s):947 - 951
| | PDF (1628 KB) | HTML

This brief presents an implementation of ultralow-power microcontrollers that use a separate clock network voltage (SCNV) to correct unexpected errors produced by on-chip variations (OCVs). Separating the clock network voltage requires amendments in the standard cell library and physical designs. Here, the experiments used a 65-nm technology that exhibited considerable OCVs, which caused write and... View full abstract»

• ### Soft Error Detection and Correction Technique for Radiation Hardening Based on C-element and BICS

Publication Year: 2014, Page(s):952 - 956
Cited by:  Papers (6)
| | PDF (805 KB) | HTML

Higher density of integration and lower power technologies are becoming more sensitive to soft errors caused by radiations. Not only memories and latches are being affected but also combinatorial circuits. Hardening by design techniques based on increasing the amount of charge representing the bit and redundancy techniques have been used over the years. However, what happens if the hardening is af... View full abstract»

• ### Low-Power Asynchronous NCL Pipelines With Fine-Grain Power Gating and Early Sleep

Publication Year: 2014, Page(s):957 - 961
Cited by:  Papers (3)
| | PDF (707 KB) | HTML

NULL convention logic (NCL) is a promising design paradigm for constructing asynchronous delay-insensitive circuits. This brief presents two novel NCL pipeline structures, called fine-grain power gating NCL with early sleep (FPG-NCL-ES) and fine-grain power gating NCL with early sleep and optimization (FPG-NCL-ES-OPT), which employ both fine-grain power gating and early sleep to achieve lower powe... View full abstract»

• ### Fast Design of IIR Digital Filters With a General Chebyshev Characteristic

Publication Year: 2014, Page(s):962 - 966
Cited by:  Papers (7)
| | PDF (480 KB) | HTML

In this brief, a fast design technique based on a multiband mapping relation is discussed for infinite-impulse-response digital filters with a general Chebyshev characteristic, which is suitable for single- and multiband operations. Each bandwidth and the ripple in it can be accurately controlled. Without increasing the order of the filters, the out-of-band performance of the filters can be easily... View full abstract»

• ### Phase-Separated DCSK: A Simple Delay-Component-Free Solution for Chaotic Communications

Publication Year: 2014, Page(s):967 - 971
Cited by:  Papers (24)
| | PDF (646 KB) | HTML

In this brief, a phase-separated differential chaos shift keying (PS-DCSK) modulation scheme is proposed as a simple delay-component-free version of DCSK modulation. Separated by orthogonal sinusoidal carriers rather than time delay, the reference and information-bearing signals in DCSK are transmitted simultaneously and parallel in the proposed system. As a result, PS-DCSK not only can avoid the ... View full abstract»

• ### Boolean Logic Operations and Computing Circuits Based on Memristors

Publication Year: 2014, Page(s):972 - 976
Cited by:  Papers (17)
| | PDF (846 KB) | HTML

This brief contributes to the design of computational and reconfigurable structures that exploit unique threshold-dependent switching response of single memristors and their compositions. A new logic circuit design paradigm, which assumes parallel processing of input signals, is proposed, along with a methodology for the construction of robust programmable composite memristive switches of variable... View full abstract»

• ### A New Piecewise Linear Hyperchaotic Circuit

Publication Year: 2014, Page(s):977 - 981
Cited by:  Papers (34)
| | PDF (825 KB) | HTML

When the polarity information in diffusionless Lorenz equations is preserved or removed, a new piecewise linear hyperchaotic system results with only signum and absolute-value nonlinearities. Dynamical equations have seven terms without any quadratic or higher order polynomials and, to our knowledge, are the simplest hyperchaotic system. Therefore, a relatively simple hyperchaotic circuit using di... View full abstract»

• ### A Dynamic Random Graph Model for Diameter-Constrained Topologies in Networked Systems

Publication Year: 2014, Page(s):982 - 986
Cited by:  Papers (1)
| | PDF (535 KB) | HTML

Random graphs have been widely investigated in the literature because of their relevance to many scientific domains. In this brief, the attention is focused on diameter-constrained random graphs, which are useful in analyzing unstructured overlays for delay-bounded network applications and systems. To this end, a general process of arrivals is considered, which describes the sequence of vertex cou... View full abstract»

• ### A 40-mV-Swing Single-Ended Transceiver for TSV with a Switched-Diode RX Termination

Publication Year: 2014, Page(s):987 - 991
Cited by:  Papers (1)
| | PDF (1183 KB) | HTML

A switched-diode termination (SDT) is proposed to implement a low-power transceiver circuit for on-chip single-ended signaling through a through-silicon via (TSV). The channel signal swing is limited to 40 mV by the SDT to reduce the transmitter (TX) power. An inverter-cascade amplifier is used to reduce the receiver (RX) power. The SDT consists of an nMOS diode and a pMOS diode, which are connect... View full abstract»

• ### An Efficient Multirate LDPC-CC Decoder With a Layered Decoding Algorithm for the IEEE 1901 Standard

Publication Year: 2014, Page(s):992 - 996
Cited by:  Papers (4)
| | PDF (683 KB) | HTML

An area-efficient multirate low-density parity-check convolutional code (LDPC-CC) decoder is presented in this brief. Using the layered decoding algorithm, the decoder achieves a better performance than the message-passing algorithm; the extrinsic-message storing is switched from variable node based to check node based. Then, using the normalized min-sum (NMS) algorithm, the extrinsic messages can... View full abstract»

• ### Pseudo-Type-III Compensation Integrated in a Voltage-Mode Buck Regulator

Publication Year: 2014, Page(s):997 - 1001
| | PDF (548 KB) | HTML

A pseudo-type-III compensation circuit integrated in a 2.25-MHz voltage-mode dc-dc buck regulator is presented. By summing high- and low-frequency signal paths at the outputs of an error amplifier, two zeros are generated to counteract the pair of complex LC poles. Comparing with traditional and various reported type-III compensation, the proposed scheme is compact, and the area of the compensatio... View full abstract»

• ### A 44–93- $\mu\hbox{s}$ 250–400-mV 0.18- $\mu\hbox{m}$ CMOS Starter for DC-Sourced Switched-Inductor Energy Harvesters

Publication Year: 2014, Page(s):1002 - 1006
Cited by:  Papers (4)
| | PDF (942 KB) | HTML

Although microsystems can replenish batteries and energize modules with ambient energy without having to store much energy on board, on-chip photovoltaic cells and thermoelectric generators generate 50-400 mV, which is usually not sufficiently high to operate transistors. Although stacking cells is possible, the tradeoff in power is ultimately unfavorable because small transducers output little po... View full abstract»

Publication Year: 2014, Page(s): 1007
| PDF (2608 KB)
• ### IEEE Transactions on Circuits and Systems—II: Express Briefs information for authors

Publication Year: 2014, Page(s): 1008
| PDF (108 KB)
• ### 2014 Index IEEE Transactions on Circuits and Systems II: Express Briefs Vol. 61

Publication Year: 2014, Page(s):1009 - 1034
| PDF (672 KB)
• ### IEEE Circuits and Systems Society Information

Publication Year: 2014, Page(s): C3
| PDF (119 KB)

## 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