Wireless

systems drives an intensive use of ultra-low power circuit techniques. Smart sensor systems composed of an energy harvester, sensors, an energy storage system and wireless transceivers require an efficient interface circ

Energy harvesting is seen as an enabling technology for autonomous wireless sensing in automotive applications. This technology may rely on piezoelectric or electrostatic energy conversion using the energy available duri

Energy harvesting is an attractive technique to take advantage of renewable energy and make systems, such as wireless sensor nodes, less dependent on external power sources. A photovoltaic (PV) energy-harvesting charger

battery. To extend battery usage time before recharge, harvesting energy from ambient light provides an elegant solution if the photovoltaic (PV) modules can be integrated with mobile devices [1]. However, mobile devices

Energy harvesting enables the remote sensors of the wireless sensor network to obtain power from the environment for their entire lifetime. For indoor remote sensors, amorphous silicon photovoltaic (PV) cell can be used

Wireless power transfer has a broad range of applications ranging from mobile phone chargers to biomedical implants. For cochlear implants [1] and retinal prostheses [2], having a miniaturized form factor and being batte

The magnitudes of IRS and VXH follow simple dynamics under a resonant condition. When VXH is low, the resonant current IRS is built up slowly, whereas when VXH is high, the current is decreased or diminished to zero. If

9.3 shows the schematic of the IF-chain. Due to the severe headroom limitation, we used two single-ended self-biased inverters instead of OTAs as IF amplifiers. Compared to a conventional common-source stage, this curren

Melina Apostolidou1, Harish Kundur Subramaniyan1, Robert Rutten1, Jan Niehof1, Jos Verlinden1, Hao Wang1, Anton Hoogstraate1, Ka Chun Kwok1, Rene Verlinden1, Reinier Hoogendoorn1, Dennis Jeurissen2, Anton Salfelner2, Ewa

the human body is the key technology for continuous, automated, and unobtrusive monitoring of physiological signals. Recently, the IEEE Standards Association established a wireless body-area-network (WBAN) standard for a

of Singapore, Singapore, Singapore 1 2 The IEEE 802.15.6 Wireless Body-Area-Network (WBAN) standard has recently specified narrowband (NB) PHY covering GMSK and D-PSK modulations targeted at varying data rates [1]. There

Instituto Superior Tecnico, Lisbon, Portugal 1 A GHz-range div-by-2 is compact and wideband enough to generate a 4-phase LO with a duty cycle not necessarily 50%. Here, DIV1 accepts a 50%-duty-cycle 2-phase input, and de

multistandard ultra-low-power (ULP) 2.36/2.4GHz transceiver for personal and body-area networks (PAN/BAN). The presented radio complies with 3 short-range standards: Bluetooth Low Energy (BT-LE), IEEE802.15.4 (ZigBee) an

Novel highly networked applications with severe energy constraints such as tag and body-area networks, for ubiquitous object networking [1] or the ‘Internet of Things’ are driving the need for ultra-low-power wireless da

Yoonmyung Lee2, David D. Wentzloff2 Cavium, Marlborough, MA, University of Michigan, Ann Arbor, MI T, to trigger the switching threshold, VH, so that the overall period remains unchanged. The comparator consists of two s

Josue Sanz-Robinson, Sigurd Wagner, James C. Sturm, Naveen Verma Princeton University, Princeton, NJ Large-area electronics presents new form factors, enabling ubiquitous systems that are flexible and capable of scaling

Abhishek Agrawal1, Vikas Singh1, Ronen Issac2, Ofer Blonskey2, Ofer Adler2, Yoav Benkuzari2, Matan Ben-Shachar2, Srikanth Manian1, Apu Sivadas1, Subhashish Mukherjee1, Gangadhar Burra3, Nir Tal2, Yariv Shlivinski2, Guy B

Lanchou Cho1, Meng-Hsiung Hung1, Xin-Yu Shih1, Che-Min Lin1, Sheng-Hong Yan1, Yuan-Hung Chung1, Paul C.P. Liang1, Guang-Kaai Dehng1, Hung-Sung Li1, George Chien2, Robert Bogdan Staszewski3 MediaTek, Hsinchu, Taiwan, 2Med

Daniele Ottini1, Yong He4, Alberto Pirola1, Enrico Sacchi1, Gregory Uehara5, Chao Yang5,6, Rinaldo Castello2 Marvell, Pavia, Italy, University of Pavia, Pavia, Italy, 3 *Now at the University of Toronto, Toronto, ON, Can

scarceness of free spectrum, the complexity and versatility of 4th-generation modulation schemes is greater than ever. In particular, the LTE standard defines multiple RF bands and groups OFDM modulated subcarriers into

Jim Svensson, Fenghao Mu, Thomas Olsson, Imad ud Din, Leif Wilhelmsson, Daniel Eckerbert, Sven Mattisson Ericsson, Lund, Sweden Carrier aggregation (CA) is introduced in 3GPP LTE Rel-10 [1] to meet the demand for further

(GNSS) have a spectrum allocation shown in Fig. 19.4.1. The time-to-first-lock and location accuracy can be improved through simultaneous reception of two different satellite signals. This usually necessitates the use of

Berkeley, CA 1 to the load, and AM-AM/AM-PM distortion, similar to conventional power amplifiers. Particularly in our quadrature DPA architecture, the RF current is the combined output of I-PA and Q-PA, and the effect of

Wi-Fi transmitters (TXs) has been continuously rising, and has hence become increasingly problematic for mobile devices. To extend battery life, the TX must be efficient not only at peak power but also at backoff, due to

Debapriya Sahu1, Apu Sivadas1, Murali Nandigam1, Saravana Ganeshan1, Srihari Datla1, Anand Kudari1, Hemant Bhasin1, Meghna Agrawal1, Subramanian Narayan1, Yogesh Dharwekar1, Robin Garg1, Vimal Edayath1, Thirunaavukkarass

Costantino Pala1, Jiang Cao1, Jaspreet Bhatia1, Mikko Waltari1, Lior Levin1, Cyrille Cathelin2, Thierry Nouvet2, Nitin Nidhi1, Rahul Kodkani1, Ryuji Maeda1, Damian Costa1, Jason McFee1, Reza Moazzam1, Herve Vincent2, Phi

Intelligent environments significantly impact human daily lives through embedded sensing and actuating systems. Wireless sensors that can provide non-contact radio information are indispensable. Impulse radar is position

Radar imaging is gaining interest for medical, security, and industrial applications. Enabled by the advances in silicon technologies, a clear trend towards higher integration is observed [1-3]. Early-stage breast cancer

The 60GHz band has opened the opportunity for multi-Gb/s wireless communications, and is being commercially supported by transceiver solutions utilizing the WirelessHD and/or WiGig standards. However, the hundreds of mWs

Giovanni Mangraviti1,2, Steven Brebels1, Wim van Thillo1, Kristof Vaesen1, Bertrand Parvais1, Vadim Issakov1, Mike Libois1, Michiaki Matsuo3, John Long4, Charlotte Soens1, Piet Wambacq1,2 imec, Leuven, Belgium, 2Vrije Un

The 60GHz band has gained great interest as an enabler for multi-Gb/s wireless links. Recent efforts [1-4] have focused on reducing transceiver power to drive adoption of 60GHz in mobile devices. To further accelerate th

With fast-growing demand for high-speed mobile communications and highly saturated spectral usage below 10GHz, mm-Wave frequency bands are emerging as the key playground for future high-data-rate wireless standards. Rece

Koichiro Tanaka, Junji Sato, Yohei Morishita, Masaki Kanemaru, Ryo Kitamura, Takahiro Shima, Toshifumi Nakatani, Kenji Miyanaga, Tomoya Urushihara, Hiroyuki Yoshikawa, Takenori Sakamoto, Hiroyuki Motozuka, Yoshinori Shir

TNO Science and Industry, The Hague, The Netherlands 1 2 Phased arrays in CMOS for consumer communication bands aim to enhance receiver performance by exploiting beamforming with antenna arrays. Sensitivity increases wit

Chien-Wei Kuan1, Hong-Lin Chu1, Chihun Lee1, Chih-Fan Liao1, Hsuan-Yu Liu1, Hong-Kai Hsu1, Li-Chun Ko1, Kuo-Hao Chen1, Chao-Hsin Lu1, Tsung-Ming Chen1, YuLi Hsueh1, Chunwei Chang1, Yi-Hsien Cho1, Chih-Hsien Shen1, Yuan S

One of the important technical problems related to 60GHz CMOS transmitters is the poor average efficiency when transmitting amplitude- and phase-modulated signals. The cause of this low efficiency is the required back-of

Marian Verhelst1, Stefano Pellerano1, Luis Cuellar2, Mariano Aguirre2, Masoud Sajadieh3, Ofir Degani4, Hasnain Lakdawala1, Yorgos Palaskas1 Intel, Hillsboro, OR Intel, Guadalajara, Mexico 3 Intel, Santa Clara, CA 4 Intel

Stopband Rejection and >+12dBm Wideband IIP3, Occupying <0.06mm2 in 65nm CMOS Shadi Youssef, Ronan van der Zee, Bram Nauta University of Twente, Enschede, The Netherlands The impedance transformation property of passive

Haolu Xie, Patrick Rakers, Mahib Rahman, Michael Gomez, Chuanzhao Yu, Benjamin Gilsdorf, Kurt Sakamoto Fujitsu Semiconductor Wireless, Tempe, AZ Fourth-generation mobile devices use wide channel bandwidths and OFDM modul

Antonio Milani2, Johnny Pan1, Paola Uggetti2, Marco Sosio3, Shaoan Dai1, Sam Tang1, Giovanni Cesura2, Gabriele Gandolfi2, Vittorio Colonna2, Rinaldo Castello2,3 Marvell, Santa Clara, CA Marvell, Pavia, Italy 3 University

Netherlands 1 2 Minimizing the power consumption while maintaining performance is paramount in radio transceiver design for low-power wireless sensor network (WSN) applications. Given a sub-mW power budget, many radios h

free-of-maintenance solution for wireless sensor network (WSN) applications. By combining sensing functionalities and batteryless (RFID-like) wireless connectivity, these devices provide a viable option for all those sce

Xiongchuan Huang1, Cui Zhou1, Mario Konijnenburg1, Kathleen Philips1, Harmke De Groot1 imec - Holst Centre, Eindhoven, The Netherlands NXP Semiconductors, Eindhoven, The Netherlands 1 2 Any around-the-body wireless syste

3/2.4GHz multi-standard transmitter (TX) for wireless sensor networks and wireless body area networks. Several 2.3/2.4GHz wireless standards have been proposed for such applications, including IEEE802.15.6 (BAN) for body

PHYCHIPS, Daejeon, Korea 1 2 Wake-up radios have been a popular transceiver architecture in recent years for battery-powered applications such as wireless body area networks (WBANs) [1], wireless sensor networks (WSNs) [

Narrow-band phased-array transmitters provide an efficient way of obtaining higher power through spatial combining and achieving higher transmitter EIRP. They also provide beamforming and beam-steering capabilities [1].

Short-distance (<10cm) wireless communications applications are rapidly expanding. For instance, a fast file transfer by “touch-and-proceed data communication” provides a user-friendly interface for electronic products [

Yasunori Aoki1, Yusuke Shinohe1, Koki Uchino1, Yuhei Hashimoto1, Fumihiro Nishiyama1, Hiroaki Miyachi1, Ikuho Nagase2, Itaru Uezono2, Rie Hisamura2, Itaru Maekawa1 Sony, Tokyo, Japan Sony Semiconductor, Kagoshima, Japan

KAIST, Daejeon, Korea, ETRI, Daejeon, Korea One of the recent trends in multimode multiband (MMMB) receivers is to remove the analog filter or variable-gain amplifier (VGA) in the receiver chain and employ a wide-dynamic

area reduction in the analog/RF part is inevitable. While all-digital polar transmitters achieving a small die size are attracting attention and their application to Bluetooth Basic Rate and GSM standards is now the real