# IEEE Transactions on Circuits and Systems II: Express Briefs

## Filter Results

Displaying Results 1 - 25 of 27

Publication Year: 2015, Page(s):C1 - C4
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• ### IEEE Transactions on Circuits and Systems—II: Express Briefs publication information

Publication Year: 2015, Page(s): C2
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• ### A Flexible Charge-Balanced Ratiometric Open-Loop Readout System for Capacitive Inertial Sensors

Publication Year: 2015, Page(s):317 - 321
Cited by:  Papers (2)
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This brief presents an open-loop readout circuit for capacitive accelerometers. It combines a ratiometric approach with charge balancing for high linearity. The charge balance is implemented with a delta-sigma loop that acts as an analog-to-digital converter for a readout signal. The system avoids the low-signal-tone power levels present in current charge-balanced implementations, making it a flex... View full abstract»

• ### Low-Complexity Compression for Sensory Systems

Publication Year: 2015, Page(s):322 - 326
Cited by:  Papers (1)
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This brief presents a low-complexity mixed-domain data compression solution that is suitable for resource-constrained wireless sensory systems. Data compression reduces the transmission bandwidth of sensor nodes, helping them to save energy and extend their operation time. In the proposed compression solution, the sensor signal is decorrelated in the analog domain and converted to digital using a ... View full abstract»

• ### A Wide-Locking-Range Dual Injection-Locked Frequency Divider With an Automatic Frequency Calibration Loop in 65-nm CMOS

Publication Year: 2015, Page(s):327 - 331
Cited by:  Papers (3)
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This brief presents a wide-locking-range injection-locked frequency divider (ILFD) that uses an automatic frequency calibration loop. The proposed ILFD uses the ring oscillator to provide the high division ratio with small chip area. A dual-injection scheme is proposed in order to achieve the wide locking range of the ILFD. The free-running frequency of the ILFD is automatically digitally calibrat... View full abstract»

• ### Current-Recycling Complex Filter for Bluetooth-Low-Energy Applications

Publication Year: 2015, Page(s):332 - 336
Cited by:  Papers (3)
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This brief presents a flexible gm-C complex filter for Bluetooth-low-energy receivers. Each complex pole is realized sharing a bias current among transconductors, leading to an ultralow-power solution. The filter, which is designed in the 130-nm complimentary metal-oxide-semiconductor technology, has a power dissipation of only 42 μW from a 0.8-V supply voltage. With a center frequency and ... View full abstract»

• ### Design Considerations of Ultralow-Voltage Self-Calibrated SAR ADC

Publication Year: 2015, Page(s):337 - 341
Cited by:  Papers (2)
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This brief presents a 0.5-V 11-bit successive approximation register analog-to-digital converter (ADC) with a focus on self-calibration at a low supply voltage. The relationships among the noise of comparators, the resolution of a calibration digitalto-analog converter (DAC), and the overall ADC performance are studied. Analysis shows that the nonlinearity of a calibration DAC and a coupling capac... View full abstract»

• ### Analysis of Inverse Class-E Power Amplifier at Subnominal Condition With 50% Duty Ratio

Publication Year: 2015, Page(s):342 - 346
Cited by:  Papers (2)
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In this brief, the performance of the inverse class-E power amplifier at subnominal condition with 50% duty ratio is studied. The inverse class-E power amplifier at subnominal condition means that it only requires the zero-current switching condition. Since the zero-current derivative switching condition is no longer demanded, the inverse class-E power amplifier at subnominal condition releases an... View full abstract»

• ### Switchable Dual-Band Filter With Common Quarter-Wavelength Resonators

Publication Year: 2015, Page(s):347 - 351
Cited by:  Papers (7)
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This brief presents a compact switchable dual-band filter with four operating states. The filter is established by adding switching circuits to a concurrent dual-band filter. The original concurrent dual-band filter has hybrid coupling paths and uses two stepped-impedance quarter-wavelength resonators that are shared by the two passbands, so fewer resonators are required. In addition, the central ... View full abstract»

• ### A 60-GHz CMOS Dual-Mode Power Amplifier With Efficiency Enhancement at Low Output Power

Publication Year: 2015, Page(s):352 - 356
Cited by:  Papers (11)
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A 60-GHz dual-mode power amplifier (PA) with efficiency enhancement at low output power in 65-nm bulk CMOS is presented. The PA consists of two cascaded common-source driver stages and one transformer-based output stage. The dual-mode output stage is reconfigured into a stacked-transistor amplifier with a 2.5-V power supply in high-power (HP) mode for high-power-handling capability and a cascode a... View full abstract»

• ### A 100-nW 9.1-ENOB 20-kS/s SAR ADC for Portable Pulse Oximeter

Publication Year: 2015, Page(s):357 - 361
Cited by:  Papers (7)
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This brief presents an energy-efficient 10-bit accuracy with 20-kS/s successive approximation register analog-to-digital converter for portable pulse oximeter. A data-dependent capacitor reset (DDCR) switching scheme for the capacitive digital-to-analog converter (CDAC) to reduce the average switching energy and the number of unit capacitors is proposed and implemented. Compared with the conventio... View full abstract»

• ### Charging Time Characterization for Wireless RF Energy Transfer

Publication Year: 2015, Page(s):362 - 366
Cited by:  Papers (6)
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Wireless energy transfer to the onboard energy storage element using dedicated radio frequency (RF) energy source has the potential to provide sustained network operations by recharging the sensor nodes on demand. To determine the efficiency of RF energy transfer (RFET), characterization of recharging process is needed. Different from classical capacitor-charging operation, the incident RF waves p... View full abstract»

• ### Fast and Generic Inversion Architectures Over $\mbox{GF}(2^m)$ Using Modified Itoh–Tsujii Algorithms

Publication Year: 2015, Page(s):367 - 371
Cited by:  Papers (5)
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Finite field inversion is the most computationally intensive field operation in public-key cryptographic algorithms such as elliptic curve cryptography. In this brief, we propose two inversion acceleration techniques for the Itoh-Tsujii algorithm (ITA) over binary extended field. First, we reformulate the ternary-ITA algorithm to generalize the primitive one, so that a universal algorithm procedur... View full abstract»

• ### Radix-2r Arithmetic for Multiplication by a Constant: Further Results and Improvements

Publication Year: 2015, Page(s):372 - 376
Cited by:  Papers (4)
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In a previous brief, we proposed a new sublinear-runtime recoding heuristic for the multiplication by a constant, accompanied by its upper bound complexity. In this brief, further results are provided, namely, the analytic expressions of the average number of additions and the maximum adder depth. Improvements to the proposed heuristic are considered as well, using a redundant recoding followed by... View full abstract»

• ### High-Throughput Low-Complexity Systolic Montgomery Multiplication Over $GF(2^{m})$ Based on Trinomials

Publication Year: 2015, Page(s):377 - 381
Cited by:  Papers (2)
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Cryptographic computation exploits finite field arithmetic and, in particular, multiplication. Lightweight and fast implementations of such arithmetic are necessary for many sensitive applications. This brief proposed a low-complexity systolic Montgomery multiplication over GF(2m)Our complexity analysis shows that the area complexity of the proposed architecture is reduced compared with... View full abstract»

• ### On Design of Robust Fault Detection Filter in Finite-Frequency Domain With Regional Pole Assignment

Publication Year: 2015, Page(s):382 - 386
Cited by:  Papers (12)
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This brief is concerned with the fault detection (FD) filter design problem for an uncertain linear discrete-time system in the finite-frequency domain with regional pole assignment. An optimized FD filter is designed such that: 1) the FD dynamics is quadratically D-stable; 2) the effect from the exogenous disturbance on the residual is attenuated with respect to a minimized H∞-n... View full abstract»

• ### Adjacent-MBU-Tolerant SEC-DED-TAEC-yAED Codes for Embedded SRAMs

Publication Year: 2015, Page(s):387 - 391
Cited by:  Papers (7)
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As technology scaling increases embedded static random access memory bit-cell density, the number of soft errors due to radiation-induced multiple-bit upsets (MBUs) also increases. Traditionally, these errors have been addressed using a simple error correction code (ECC) combined with word interleaving. With continued scaling, however, errors beyond this setup begin to emerge. Although more powerf... View full abstract»

• ### Prefilter-Based Reconfigurable Reconstructor for Time-Interleaved ADCs With Missing Samples

Publication Year: 2015, Page(s):392 - 396
Cited by:  Papers (2)
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This brief proposes a reconstruction scheme for the compensation of frequency-response mismatch errors at the output of a time-interleaved analog-to-digital converter (TI-ADC) with missing samples. The missing samples are due to sampling instants reserved for estimating the channel mismatch errors in the TI-ADC. Compared with previous solutions, the proposed scheme offers substantially lower compu... View full abstract»

• ### Design of Modulated Filter Banks and Transmultiplexers With Unified Initial Solutions and Very Few Unknown Parameters

Publication Year: 2015, Page(s):397 - 401
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This brief proposes a method for designing modulated filter banks (FBs) with a large number of channels. The impulse response of the long prototype filter is parameterized in terms of a few short impulse responses, thus significantly reducing the number of unknown parameters. The proposed method starts by first obtaining an FB with a few channels. The solution of this FB is then partly reused as a... View full abstract»

• ### What are Memristor, Memcapacitor, and Meminductor?

Publication Year: 2015, Page(s):402 - 406
Cited by:  Papers (5)
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Memristor, memcapacitor, and meminductor are new fundamental circuit elements, whose properties depend on the history of devices. This paper presents the physical analysis of these memory devices. Three simple examples are given for the memristor, memcapacitor, and meminductor, and are then generalized to reveal their general physical origin. It is found that the memristance, memcapacitance, and m... View full abstract»

• ### A Parameter-Perturbation Method for Chaos Control to Stabilizing UPOs

Publication Year: 2015, Page(s):407 - 411
Cited by:  Papers (4)
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A new method is developed for controlling chaos in discrete systems by perturbing one of its parameters in the neighborhood of an unstable periodic orbit (UPO). For 2-D systems, only two changes in the parameter value are needed in order to stabilize a UPO embedded in the chaotic attractor. The method is general and can be applied to any discrete chaotic system, in which a parameter is accessible ... View full abstract»

• ### Design Considerations for Traveling-Wave Modulator-Based CMOS Photonic Transmitters

Publication Year: 2015, Page(s):412 - 416
Cited by:  Papers (7)
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Systematic design and simulation methodology for hybrid optical transmitters that combine CMOS circuits in a 130-nm process and a traveling-wave Mach-Zehnder modulator (TWMZM) in a 130-nm silicon-on-insulator CMOS process is presented. A compact Verilog-A model for the TWMZM is adopted for the electrooptical simulation. A bond wire model using a high-frequency solver is included for accurate packa... View full abstract»

Publication Year: 2015, Page(s): 417
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Publication Year: 2015, Page(s): 418
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Publication Year: 2015, Page(s): 419
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## 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