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Antonio Lopez-Martin, Maria Pilar Garde, Jose M. Algueta-Miguel, Javier Beloso-Legarra, Ramon G. Carvajal and Jaime Ramirez-Angulo
Energy efficiency is a key requirement in the design of amplifiers for modern wireless applications. The use of quasi-floating gate (QFG) transistors is a very convenient approach to achieve such energy efficiency. We illustrate different QFG circuit des...
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Gabriel M. Carral, Jesús Liñares, Eduardo F. Mateo and Xesús Prieto-Blanco
We analyze autocompensation possibilities in entanglement-based QKD protocols. In particular, we study the seminal BBM92 protocol and find that an autocompensating technique is possible, although with severe limitations. This prompts the introduction of ...
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Eli Ohana and Dror Malka
To test silicon photonics component performances, a silicon (Si) grating coupler (GC) is used to couple the light from a single-mode fiber (SMF) into the chip. However, silicon nitride (Si3N4) waveguides have recently become more popular for realizing ph...
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Jaime Ramírez-Angulo, Anindita Paul, Manaswini Gangineni, Jose Maria Hinojo-Montero and Jesús Huerta-Chua
The application of the flipped voltage follower to implement two high-performance circuits is presented: (1) The first is a class AB cascode flipped voltage follower that shows an improved slew rate and an improved bandwidth by very large factors and tha...
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Anna Richelli, Paolo Faustini, Andrea Rosa and Luigi Colalongo
Digital-based differential amplifiers (DDA) are particularly suitable to low voltage digital integrated circuit technologies. This paper presents an exhaustive analysis of digital-based analog amplifiers to take advantage of today?s high-performance digi...
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Toshihiro Kameda, Akihiro Nagata, Yohei Kimura, Ryujin Imai, Pragyan Shrestha, Keisuke Kimura, Atsushi Yasuda and Hiromasa Watanabe
A software-controllable, consumer-grade, single-chip transceiver integrated circuit (IC) has multiple applications because it can generate a continuous-wave beacon while providing the basic functions of frequency shift keying digital communication as wel...
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Agata Romanova and Vaidotas Barzdenas
The work reports on the development of a detailed noise current model for a low-noise capacitive feedback transimpedance amplifier (TIA) in CMOS. The proposed TIA circuit implements the programmable-gain using an array of discretely controlled feedback c...
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Marcello De Matteis, Federico Fary, Elia A. Vallicelli and Andrea Baschirotto
This paper presents a fourth-order continuous-time analog filter based on the cascade of two flipped-source-follower (FSF) biquadratic (biquad) cells. The FSF biquad adopts two interacting loops (the first due to the classic source-follower, and the seco...
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Andrey Ivashko,Igor Liberg,Denis Lunin
Pág. 6 - 10
The selection of special-form moduli and their corresponding primitive roots have been proposed, which provide for a simplified structure of arithmetic devices using number-theoretic transforms. A method for determining moduli has been developed that ens...
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Yang Liu, Bo Zhang, Yinian Feng, Xiaolin Lv, Dongfeng Ji, Zhongqian Niu, Yilin Yang, Xiangyang Zhao and Yong Fan
Frequency multipliers and mixers based on Schottky barrier diodes (SBDs) are widely used in terahertz (THz) imaging applications. However, they still face obstacles, such as poor performance consistency caused by discrete flip-chip diodes, as well as low...
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Dalal Fadil, Vikram Passi, Wei Wei, Soukaina Ben Salk, Di Zhou, Wlodek Strupinski, Max C. Lemme, Thomas Zimmer, Emiliano Pallecchi, Henri Happy and Sebastien Fregonese
This paper presents the first graphene radiofrequency (RF) monolithic integrated balun circuit. It is composed of four integrated graphene field effect transistors (GFETs). This innovative active balun concept takes advantage of the GFET ambipolar behavi...
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Régis Leveugle, Asma Mkhinini and Paolo Maistri
In the Internet of Things (IoT), many strong constraints have to be considered when designing the connected objects, including low cost and low power, thus limited resources. The confidentiality and integrity of sensitive data must however be ensured eve...
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Leonardo Pantoli,Alfiero Leoni,Vincenzo Stornelli,Giuseppe Ferri
Pág. 96 - 100
In this work we present an IC architecture for RF energy harvesting. The system has been designed with a 0.18µm CMOS SMIC technology and optimized at 900MHz. Simulation results have confirmed that the integrated system handles an incoming power typically...
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Tin Komljenovic, Linjun Liang, Rui-Lin Chao, Jared Hulme, Sudharsanan Srinivasan, Michael Davenport and John E. Bowers
Chip-scale widely-tunable lasers are important for both communication and sensing applications. They have a number of advantages, such as size, weight, and cost compared to mechanically tuned counterparts. Furthermore, they allow for integration in more ...
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Leandro H. de S. Silva, Agostinho A. F. Júnior, George O. A. Azevedo, Sergio C. Oliveira and Bruno J. T. Fernandes
The technological growth of the last decades has brought many improvements in daily life, but also concerns on how to deal with electronic waste. Electrical and electronic equipment waste is the fastest-growing rate in the industrialized world. One of th...
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Xin Mu, Sailong Wu, Lirong Cheng and H.Y. Fu
Silicon photonics has drawn increasing attention in the past few decades and is a promising key technology for future daily applications due to its various merits including ultra-low cost, high integration density owing to the high refractive index of si...
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Han Yang, Rui Chen, Jianwei Han, Yanan Liang, Yingqi Ma and Hao Wu
Thermal Laser Stimulation (TLS) is an efficient technology for integrated circuit defect localization in Failure Analysis (FA) laboratories. It contains Optical Beam-Induced Resistance Change (OBIRCH), Thermally-Induced Voltage Alteration (TIVA), and See...
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Cátia Pinho, Francisco Rodrigues, Ana Maia Tavares, Carla Rodrigues, Cláudio Emanuel Rodrigues and António Teixeira
The development of photonic integrated circuits (PIC) for access network applications, such as passive optical networks (PON), constitutes a very attractive ecosystem due to PON?s potential mass market. The implementation of PIC solutions in this context...
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Manfred Sneps-Sneppe
Pág. 21 - 31
The paper is dedicated to the 50th anniversary of the Grinberg theorem. The main works of Emanuel Grinberg (1911-1982) in applied mathematics are described, following the stages of his life path, namely: the design of radio receivers and the calculation ...
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Giuseppe Venanzoni, Davide Mencarelli, Antonio Morini, Marco Farina and Francesco Prudenzano
A review of substrate integrated waveguide (SIW) components designed for the use in beam-forming networks working in X-Band is presented. The proposed devices are four-port and six-port couplers and magic tees for the network. The devices take full advan...
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