International Journal of Circuit Theory and Applications

Cover image for Vol. 45 Issue 12

Edited By: Ángel Rodríguez-Vázquez

Impact Factor: 1.571

ISI Journal Citation Reports © Ranking: 2016: 145/262 (Engineering Electrical & Electronic)

Online ISSN: 1097-007X

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About International Journal of Circuit Theory and Applications

The International Journal of Circuit Theory and Applications is devoted to the publication of original work on both the theory and its applications. It brings together papers describing advances in the theory and in the application of circuit theoretic concepts intendeds to be of interest both in stimulating the wider use of such concepts and in posing new challenges for the circuit theorist.

Read the journal's full aims and scope here

Recently Published Articles

  1. A 0.1 to 2.7-GHz SOI SP8T antenna switch adopting body self-adapting bias technique for low-loss high-power applications

    Zhihao Zhang, Gary Zhang, Kai Yu, Junming Lin and Zuhua Liu

    Version of Record online: 3 JAN 2018 | DOI: 10.1002/cta.2437

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    This paper presents a low-loss high-power SOI CMOS single-pole 8-throw antenna switch adopting body self-adapting bias technique. The new body bias strategy that employs a diode-connected device between the gate and body of the body-contacted switch transistor helps to lower insertion loss, imbalanced voltage division, and die area. The overall insertion loss and P−0.1dB are apparently improved by approximately 0.05 to 0.13 dB and 0.5 to 0.8 dBm compared with the conventional version.

  2. A new non-isolated free ripple input current bidirectional DC-DC converter with capability of zero voltage switching

    Zahra Saadatizadeh, Pedram Chavoshipour Heris, Mehran Sabahi, Mehrdad Tarafdar Hagh and Mohammad Maalandish

    Version of Record online: 26 DEC 2017 | DOI: 10.1002/cta.2435

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    In this paper, a new nonisolated free ripple input current bidirectional dc-dc converter with capability of zero voltage switching (ZVS) is proposed. In the proposed converter by using a 3-winding coupled inductor, the voltage conversion ratio is increased and the free ripple input current condition at low voltage side is achieved for a whole range of duty cycles in comparison with common topologies. The proposed converter uses an auxiliary inductor for achieving ZVS turning ON for 2 switches for different values of output power.

  3. Compressive sensing-based adaptive sparse predistorter design for power amplifier linearization

    Yao Yao, Mingyu Li, Yi Jin, Weiliang Jiang, Yifan Wang, Mingdong Zhu and Songbai He

    Version of Record online: 26 DEC 2017 | DOI: 10.1002/cta.2445

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    In this paper, a powerful subspace pursuit greedy scheme combined with stochastic gradient descent adaptive algorithm is proposed to design a class of adaptive sparse digital predistorters (DPDs). Simulation and experimental results show that proposed algorithm can efficiently construct the adaptive sparse DPD models with only a small number of parameters. Compared with the batch mode compressive sensing model DPD, the proposed approach exhibits adaptive tracking capabilities while offers the similar compensation performance.

  4. Transfer function-matched capacitor-current sensing and its circuit implementation for high-frequency power converters

    Weiguo Lu, Shidong Yan, Yidi Yang and Huimin Fang

    Version of Record online: 26 DEC 2017 | DOI: 10.1002/cta.2442

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    In this paper, a paralleled noninvasive sensing circuit scheme for capacitor current is proposed by matching the transfer functions of the sensing circuit and the sensed capacitor branch, and further, 4 possible circuit topologies are derived in theory. Experiment results confirm the rapidity and accuracy of the proposed sensing circuit scheme, and with the application of 2 of candidate topologies to a constant-frequency hysteresis controlled Buck converter, a very fast load transient response is achieved.

  5. A portable class of 3-transistor current references with low-power sub-0.5 V operation

    Felice Crupi, Raffaele De Rose, Maksym Paliy, Marco Lanuzza, Mattia Perna and Giuseppe Iannaccone

    Version of Record online: 20 DEC 2017 | DOI: 10.1002/cta.2439

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    This work proposes a new class of current references based on only 3 transistors that allows sub-0.5 V operation. The circuit consists of a 2-transistor block that generates a proportional-to-absolute temperature or a complementary-to-absolute-temperature voltage and a load transistor. The idea of a 3T current reference is validated by circuit simulations for different complementary metal oxide semiconductor technologies and by experimental measurements on a large set of test chips fabricated with a commercial 0.18 μm complementary metal oxide semiconductor process. As compared to the state-of-art competitors, the 3T current reference exhibits competitive performance in terms of temperature coefficient (578 ppm/°C), line sensitivity (3.9%/V), and power consumption (213 nW) and presents a reduction by a factor of 2 to 3 in terms of minimum operating voltage (0.45 V) and an improvement of 1 to 2 orders of magnitude in terms of area occupation (750 μm2). In spite of the extremely reduced silicon area, the fabricated chips exhibit low-process sensitivity (2.7%). A digital trimming solution to significantly reduce the process sensitivity is also presented and validated by simulations.

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