Wireless

The coexistence of more and more wireless standards in the ISM bands increases the design difficulty of interference-robust receivers (RX), especially for Wireless Sensor Nodes because of their Ultra-Low-Power (ULP) budge

(BLE) have been developed for minimizing the RX power consumption. A PLL-based RX architecture [1] is very attractive to improve the energy efficiency. While the single-channel configuration without multi-bit ADC realize

devices to cut the last wire. Resonant wireless power transfer (R-WPT) using magnetic resonance emerges as a promising approach, as it provides spatial freedom and can charge multiple devices simultaneously. ISM-band fre

Ubiquitous Internet-of-Everything (IoE) applications require low-cost, miniature sensors with long lifetimes. Wirelessly-powered ICs that harvest energy from an RF beacon or from existing wireless signals can address cha

to miniature implantable sensor systems such as [1]. To recharge batteries of such systems, wireless power transfer is a popular option since it is non-invasive. However, there are two main challenges: 1) strict safety r

extend system lifetime for internet of everything (IoE) nodes. Ambient light is a common energy source that can be harvested by photovoltaic (PV) cells. However, light intensity varies widely depending on location, rangi

Analog Devices, Wilmington, MA, 3 Analog Devices, San Jose, CA 1 2 Energy harvesting has been considered to be a good solution to power many IoE applications [1-3]. Some applications require regulated supply voltage, whi

Improvement Daniel A. Sanchez1, Joachim Leicht1, Eduardas Jodka1, Elham Fazel1, Yiannos Manoli1,2 University of Freiburg - IMTEK, Freiburg, Germany, Hahn-Schickard, Villingen-Schwenningen, Germany 1 2 A piezoelectric ene

The switched-capacitor power converter, also called a charge pump (CP), features no off-chip components and is suitable for the monolithic smart nodes in the internet of everything (IoE) [1]. To reduce the inevitable cha

communication systems is dominated by the tradeoff between cost and performance. While the former claims ever-smaller footprints and bill of materials (BOM), the latter comprises a stringent set of requirements regarding

Shinji Sato, Satoshi Kondo, Tomohiro Ueno, Teerachot Siriburanon, Shoutarou Maki, Bangan Liu, Yun Wang, Noriaki Nagashima, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa Tokyo Institute of Technology, Tokyo, Japan It is

Kristof Vaesen1, Davide Guermandi1, Vito Giannini1,3, Steven Brebels1, Fortunato Frazzica1, André Bourdoux1, Charlotte Soens1, Wim Van Thillo1, Piet Wambacq1,2 imec, Heverlee, Belgium, Vrije Universiteit Brussel, Brussel

University of California, Santa Barbara, CA 1 2 High-capacity microwave systems demand high-efficiency transmit architectures that support complex waveforms with high peak-to-average-power-ratio (PAPR) modulation. The ou

Noriaki Nagashima1, Jun Emmei1, Masato Dome1, Hisashi Kato1, Jian Pang1, Yoichi Kawano2, Toshihide Suzuki2, Taisuke Iwai2, Yuuki Seo1, Kimsrun Lim1, Shinji Sato1, Li Ning1, Kengo Nakata1, Kenichi Okada1, Akira Matsuzawa1

capabilities to acquire imagery during night and inclement weather is indispensable for remote sensing, traffic mapping, etc. Recent unmanned aerial vehicles (UAVs) have been miniaturized to <1m3, providing an inexpensiv

1.3 shows the circuit implementation of the low-power PI used in the phase DAC. The PI stage consists of two complementary parts, each interpolating between the rising or falling edges of the two input clocks, respective

With limited frequency allocation in the radio spectrum, spectral efficiency has always been the core development of communication systems. To accommodate the increase in demand for wireless data services, RF systems hav

infrastructure require both high linearity and large bandwidth (BW) at GHz frequencies. The combination of multicarrier GSM, WCDMA and LTE typically requires IMD<-80dBc and SFDR>80dBc in a large transmit bandwidth of 300

employ various modulation methods in various frequency bands, interest in the software-defined radio (SDR) transceiver to support the standards is increasing. For the flexible transceiver, a digital-intensive transmitter

Arvind Anumula Paramanandam, Anuranjan Jha, Norman Liu, Edwin Chan, Li Lin Marvell, Santa Clara, CA The fast adaptation of WiFi 802.11ac 256-QAM mode requires RF clocks with very low integrated phase error to deliver goo

stringent requirements on every transmitter design aspect. Especially when the inter-stage SAW filter is removed, FDD operation using high-order modulation schemes (as in e.g. WCDMA, LTE) demands both remarkable noise pe

Peter Pfann1, Ronald Thüringer1, Martin Kastner1, Christian Pröll2, Andreas Schwarz2, Florian Mrugalla1, Jimena Saporiti2, Umut Basaran3, Andreas Langer1, Tobias D. Werth1, Timo Gossmann1, Boris Kapfelsperger1, Johann Pl

Iason Vassiliou1, Charalampos Kapnistis1, Yiannis Kokolakis1, Hamed Peyravi1, Gerasimos Theodoratos1, Konstantinos Vryssas1, Nikos Kanakaris1, Christos Kokozidis1, Spyros Kavadias1, Sofoklis Plevridis1, Paul Mudge2, Igor

The demand for inexpensive and ubiquitous accurate motion-detection sensors for road safety, smart homes and robotics justifies the interest in single-chip mm-Wave radars: a high carrier frequency allows for a high angul

Contrary to conventional continuous-wave communication technologies, Impulse-radio Ultra-Wideband (IR-UWB) allows to have various functionalities such as communication, localization and radar by using a short pulse [1-4]

Satoshi Kondo, Tomohiro Ueno, Nurul Fajri, Shoutarou Maki, Noriaki Nagashima, Yasuaki Takeuchi, Tatsuya Yamaguchi, Ahmed Musa, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa Tokyo Institute of Technology, Tokyo, Japan T

Jeffrey Yuan1, John Wright1, Peter R. Kinget1 Columbia University, New York, NY, 2InterDigital Communications, Melville, NY 1 Mobile data traffic (driven by video over wireless, Internet of Things and machine-to-machine

The demand for increased wireless data throughput in future wireless communication and the lack of available wide contiguous frequency bands inspire the concept of aggregating multiple frequency bands in a SoftwareDefine

In-band full-duplex (FD) wireless communication, i.e. simultaneous transmission and reception at the same frequency, in the same channel, promises up to 2x spectral efficiency, along with advantages in higher network lay

which limit form factor. Widely-tunable low-noise RF active self-interference cancellation (SIC) (e.g. [1]) is a step towards enabling duplexers with reduced TX/RX isolation as well as adjacent-channel full duplex. Howev

at Analog Devices, Limerick, Ireland 1 Using a DC-coupled buffer instead of an AC-coupled one, power consumption and noise feed-through into the DCO are reduced. The VTC of the DC-coupled DCO buffer can be varied by digi

Ao Ba1, Maarten Lont1, Yao-Hong Liu1, Pieter Harpe2, Ming Ding1, Ben Busze1, Nauman Kiyani1, Kouichi Kanda3, Shoichi Masui3, Kathleen Philips1, Harmke de Groot1 Holst Centre/imec, Eindhoven, The Netherlands, Eindhoven Un

Fudan University, Shanghai, China 1 2 The release of the IEEE802.15.6 standard has led to increased interest in lowpower technologies for wireless body-area-networks (WBAN). The power dissipation, supply voltage, and IC

4GHz RX for short-range wireless personal and body-area networks. In such applications, the RF transceiver consumes up to 90% of the total battery energy in a remote sensor node. In order to extend the operation lifetime

UMTEC, Macao, China, 3 Instituto Superior Tecnico, Lisbon, Portugal 1 2 The rapid proliferation of Internet of Things has urged the development of ultralow-power (ULP) radios at the lowest possible cost, while being univ

constraints on the wireless links where the ear-to-ear link enables signal processing of sound for both ears to enhance speech intelligence and the ear-to-device link provides an audio channel to commercial electronics s

medical equipment has not been rapidly developed. For wireless medical applications, lossless connection and noninvasive transmission are important factors. Moreover, in medical imaging applications such as 4D ultrasound

Eng Chuan Low1, Dan Ping Li1, Liming Jin1, Huajiang Zhang1, Chin Heng Leow1, Soong Lin Chew1, Uday Dasgupta1, Chee Hong Yong1, Tian Bao Gao1, Geok Teng Ong1, Wee Guan Tan1, Weimin Shu1, Chee Lee Heng1, Osama Shana’A1,2 M

multi-path immunity for ranging and localization applications [1], [2]. Impulse radar sends signals with short duration and spreads signal power over a large bandwidth. Favorable features of impulse radar are minor inter

alldigital PLLs due to several substantial building blocks such as the loop filter and charge pump (CP). To achieve the required phase noise, the in-band noise is typically suppressed by increasing CP current and loop fi

programmable receivers, ideally placing the analog-to-digital converter (ADC) right at the antenna. Such an RF ADC should be tunable over several GHz, have programmable gain, low noise, be blocker-tolerant, and consume m

Recent work on RF receivers has exploited N-path filters to address two critical issues, namely, blocker tolerance and high RF selectivity [1,2]. However, these designs face three drawbacks: (1) the low-noise amplifier (

evolution of cellular phone networks. New-generation cellular standards use wider channel bandwidth and more sophisticated modulation to obtain higher data-rates. Due to various cellular standards, chip providers are req

The demand for lower cost and form factor and increased re-configurability in wireless systems has driven the investigation of blocker-tolerant softwaredefined radios [1-4]. While promising, a reduction in system form-fa

Wai Lau, Yuan Lu, Donghong Cui, Kun-Seok Lee, Sai-Wang Tam, Philip Godoy, Yung Chen, Sanghoon Joo, Changhui Hu, Arvind Anumula Paramanandam, Xiaoyue Wang, Chi-Hung Lin, Li Lin Marvell, Santa Clara, CA The steep growth of

Akihide Sai, Shusuke Kawai, Tong Wang, Masanori Furuta, Kei Shiraishi, Koichiro Ban, Seiichiro Horikawa, Tomoya Tandai, Ryoko Matsuo, Takeshi Tomizawa, Hiroaki Hoshino, Junya Matsuno, Yukako Tsutsumi, Ryoichi Tachibana,

Satoshi Kondo, Tomohiro Ueno, Yasuaki Takeuchi, Tatsuya Yamaguchi, Ahmed Musa, Rui Wu, Masaya Miyahara, Akira Matsuzawa The RX conversion gain is more than 20dB, excluding the PCB loss. SNDR at the center frequency of 61

Ehsan Adabi1, Bagher Afshar1, Bevin Perumana1, Theodoros Chalvatzis2, Spyros Kavadias2, Padmanava Sen1, Wei Liat Chan1, Alvin Yu1, Ali Parsa3, Med Nariman1, Seunghwan Yoon1, Alfred Grau Besoli1, Chryssoula Kyriazidou2, G

recently gained a lot of attention. Its broad bandwidth, combined with a high allowed transmitted power level, provides an excellent opportunity for numerous applications, among others high-precision ranging and localiza

Because miniaturized systems store little energy, their lifespans are often short. Fortunately, vibrations are consistent and abundant in many applications, so ambient kinetic energy can be a viable source. Vibrations in