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Journal articles on the topic 'Wilkinson divider'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Wang, Yong, Shun Li Zhou, and Yong Sheng Qiu. "A Wilkinson Power Divider Using a Microstrip in Isolation." Applied Mechanics and Materials 644-650 (September 2014): 3713–17. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.3713.

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This do In this paper, based on the Wilkinson power divider, a modified Wilkinson power divider using a microstrip in isolation is discussed. It can reduces the size of the circuit board area. What’s more, the isolation bandwidth can be extend by the Wilkinson power divider using a microstrip in isolation. Firstly, this paper illustrates the principles of the traditional Wilkinson power divider. By introducing the concept of isolation network, the real and imaginary part of the traditional Wilkinson power divider are derived. And then, the principle diagram the Wilkinson power divider with RLC isolation network are shown, we also give the expression of the real part and imaginary part of the isolation network. Lastly, we introduce the modified Wilkinson power divider using a microstrip in isolation, and give the expressions of real part and imaginary part of the isolation network, and the above three kinds of real part and imaginary part of Wilkinson power divider are simulated. Through simulation, we found the power divider using a microstrip in isolation has better physical performance.

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2

Qiu, Yu Feng. "Millimeter-Wave Reduced-Size Wilkinson Power Divider." Advanced Materials Research 998-999 (July 2014): 626–30. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.626.

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The letter reports the analysis of the reduced-size planar microstrip Wilkinson power divider which uses miniaturized microstrip line instead of conventional quarter wavelength transmission line. The full design formulae of the miniaturized Wilkinson power divider with arbitrary power ratio is first proposed.3dB one-stage and two-stage miniaturized Wilkinson power divider are designed according to the formulae. The ADS EM simulation results of the one-stage miniaturized Wilkinson power divider when the smaller electrical angle is 45 degrees show its reflection coefficient<-20dB,isolation>20dB and the transmission loss<0.4dB in the bandwidth of 28.9-34.9GHz,for the two-stage reduced-size Wilkinson power divider its reflection coefficient <-20dB,isolation>20dB and the transmission loss<0.4dB in the bandwidth of 26-37.5GHz.This kind of miniaturized Wilkinson power divider has a very compact size as well as good match and isolation.

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3

Chau, Wei-Ming, Ko-Wen Hsu, and Wen-Hua Tu. "Filter-Based Wilkinson Power Divider." IEEE Microwave and Wireless Components Letters 24, no. 4 (April 2014): 239–41. http://dx.doi.org/10.1109/lmwc.2014.2299543.

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4

Liang, Li Ming, and Yuan An Liu. "A Novel Dual-Band Planar Wilkinson Power Divider." Advanced Materials Research 646 (January 2013): 197–201. http://dx.doi.org/10.4028/www.scientific.net/amr.646.197.

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A two-way symmetrical modified Wilkinson power divider with shifted output ports and wide range frequency-ratio is proposed for dual-band application. The symmetrical Wilkinson power divider consists of one section coupled line, one section microstrip line, the shifting of two output ports to the middle, two open stubs at the input port and an isolation resistor. The corresponding nonlinear design equations are derived by using the even- and odd-mode analysis. Moreover, solving the nonlinear design equations by optimization algorithms, accurate numerical design parameters along with different frequency ratios are obtained. Finally, the proposed structure and design method are validated by simulation and experimental results of microstrip planar Wilkinson power divider.

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5

Jeng-Sik Lim, Sung-Won Lee, Chul-Soo Kim, Jun-Seek Park, Dal Ahn, and Sangwook Nam. "A 4.1 unequal Wilkinson power divider." IEEE Microwave and Wireless Components Letters 11, no. 3 (March 2001): 124–26. http://dx.doi.org/10.1109/7260.915624.

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6

Hazeri, Ali Reza. "An ultra wideband Wilkinson power divider." International Journal of Electronics 99, no. 4 (April 2012): 575–84. http://dx.doi.org/10.1080/00207217.2011.629227.

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7

Myun-Joo Park and Byungje Lee. "A Dual-Band Wilkinson Power Divider." IEEE Microwave and Wireless Components Letters 18, no. 2 (February 2008): 85–87. http://dx.doi.org/10.1109/lmwc.2007.915031.

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8

Chizhov, A. I., and S. A. Palashov. "Modification of the Wilkinson power divider." Journal of Communications Technology and Electronics 55, no. 4 (April 2010): 435–38. http://dx.doi.org/10.1134/s1064226910040091.

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9

Mohra, Ashraf S. S. "Compact dual band Wilkinson power divider." Microwave and Optical Technology Letters 50, no. 6 (2008): 1678–82. http://dx.doi.org/10.1002/mop.23465.

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10

Lei Wu, Zengguang Sun, H. Yilmaz, and M. Berroth. "A dual-frequency wilkinson power divider." IEEE Transactions on Microwave Theory and Techniques 54, no. 1 (January 2006): 278–84. http://dx.doi.org/10.1109/tmtt.2005.860300.

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11

Kim, J. S., M. J. Park, and M. G. Kim. "Out-of-phase Wilkinson power divider." Electronics Letters 45, no. 1 (2009): 59. http://dx.doi.org/10.1049/el:20092777.

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12

Kim, Byung-Chul, Soo-Jung Lee, and Young Kim. "Unequal Dual-band Wilkinson Power Divider." Journal of Digital Convergence 12, no. 4 (April 28, 2014): 343–48. http://dx.doi.org/10.14400/jdc.2014.12.4.343.

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13

Wang, Huan-Zhu, Jia-Lin Li, Jian-Peng Wang, Wei Shao, and Xue-Song Yang. "Stub-Loaded Wilkinson Power Divider with Performance Enhancement." Journal of Circuits, Systems and Computers 24, no. 08 (August 12, 2015): 1550127. http://dx.doi.org/10.1142/s0218126615501273.

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Microstrip Wilkinson power dividers with harmonic suppression and size reduction are investigated. It is found that by loading reactive components at the middle of high impedance transmission lines (TLs), both size reduction and harmonic suppression can be achieved. Analyses and designs of such a kind of power divider are formulated in this paper. To demonstrate the design methodology, two power dividers centered at 1.8 GHz are optimally designed and confirmed by experiments. As compared with conventional Wilkinson power divider, the proposed power divider exhibits 55.6% size reduction, and high suppressions are achieved for 2nd and 3rd harmonic components. Both simulations and measurements are presented with good agreement.

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14

Cai, Xiao Tao, De Jiang Yu, Hui Feng Wang, and Ru Gang Hu. "Design of a Miniaturized Microstrip Wilkinson Power Divider." Applied Mechanics and Materials 303-306 (February 2013): 1826–29. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.1826.

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A miniaturized microstrip Wilkinson power divider is proposed in this paper. The designed power divider is miniaturized by means of using the snake-shaped structure to meet the engineering requirements. During the operation frequency band, the designed Wilkinson power divider has good performance of impedance matching at three ports and the measured return loss of each port are all less than -17dB. The isolation between two output ports is better than -20dB. The insert loss is less than 0.7dB. The designed power divider is fabricated to validate the design. The proposed power divider is measured and the simulated and measured results have a good agreement.

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15

WU, YONGLE, QIANG LIU, JUNYU SHEN, and YUANAN LIU. "COMPACT WILKINSON PASS-BAND FILTERING POWER DIVIDER BASED ON QUARTER-WAVELENGTH SIDE-COUPLED RING." Journal of Circuits, Systems and Computers 23, no. 10 (October 14, 2014): 1450135. http://dx.doi.org/10.1142/s0218126614501357.

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A Wilkinson power divider with improved bandpass filtering and high isolation performance is proposed. These characteristics are achieved by replacing the quarter-wavelength transmission line in the conventional coupled line Wilkinson power divider with quarter-wavelength side-coupled ring (QSCR). Additional features such as DC blocking between arbitrary two ports, single-layer via-less structure for low-cost fabrication and convenient integration (as only one isolation resistor required) are highlighted. A 2-GHz Wilkinson microstrip power divider with a fractional bandwidth of 4% has been fabricated and experimentally characterized. The consistency between simulated and measured results validates the effectiveness of our proposed design.

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16

Siva Charan, M., Praveen Vummadisetty. Naidu, A. Rajasekhar, Gaurav Bansod, P. Raveendra, and Arvind Kumar. "Simulation, design of unequal five way wilkinson power divider for EW applications." International Journal of Engineering & Technology 7, no. 3 (June 23, 2018): 1059. http://dx.doi.org/10.14419/ijet.v7i3.13155.

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This paper deals with the design and simulation of unequal 5-way Wilkinson power divider used for Electronic Warfare (EW) applications. The frequency range of operation intended for this design is 6 GHz to 18 GHz. The proposed Wilkinson power divider is designed on a low cost FR-4 substrate having height of 1.5mm, relative permittivity of 4.4 and loss tangent of 0.02. The design occupies a size of 11mm x 33 mm x 1. 5 mm. Equal split Wilkinson power dividers are utilized for implementation of this design. High isolation has been obtained throughout the frequency range of 6 GHz to 18 GHz. The design procedure is discussed. The simulated results are presented by using ADS simulation software.

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17

Siahkamari, Hesam, Zahra Yasoubi, Maryam Jahanbakhshi, Seyed Mohammad Hadi Mousavi, Payam Siahkamari, Mohammad Ehsan Nouri, Sajad Azami, and Rasoul Azadi. "Design of Compact Wilkinson Power Divider with Harmonic Suppression using T-Shaped Resonators." Frequenz 72, no. 5-6 (April 25, 2018): 253–59. http://dx.doi.org/10.1515/freq-2016-0219.

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AbstractA novel scheme of a shrunken Wilkinson power divider with harmonic suppression, using two identical resonators in the conventional Wilkinson power divider is designed. Moreover, the LC equivalent circuit and its relevant formulas are provided. To substantiate the functionality and soundness of design, a microstrip implementation of this design operating at 1 GHz with the second to eighth harmonic suppression, is developed. The proposed circuit is relatively smaller than the conventional circuit, (roughly 55% of the conventional circuit). Simulation and measurement results for the proposed scheme, which are highly consistent with one another, indicate a good insertion loss about 3.1 dB, input return loss of 20 dB and isolation of 20 dB, while sustaining high-power handling capability over the Wilkinson power divider.

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18

Wu, Y., Y. Liu, and S. Li. "A New Dual-Frequency Wilkinson Power Divider." Journal of Electromagnetic Waves and Applications 23, no. 4 (January 1, 2009): 483–92. http://dx.doi.org/10.1163/156939309787612400.

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19

Xia, Bin, Lin-Sheng Wu, Junfa Mao, and Lin Yang. "A new quad-band Wilkinson power divider." Journal of Electromagnetic Waves and Applications 28, no. 13 (July 21, 2014): 1622–34. http://dx.doi.org/10.1080/09205071.2014.938170.

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20

Chongcheawchamnan, Mitchai, Sakol Julrat, Mohammad Farhan Shafique, and Ian D. Robertson. "Frequency‐selectable dual‐band Wilkinson divider/combiner." IET Microwaves, Antennas & Propagation 7, no. 10 (July 2013): 836–42. http://dx.doi.org/10.1049/iet-map.2013.0113.

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21

Tu, Wen-Hua. "Compact Wilkinson power divider with harmonic suppression." Microwave and Optical Technology Letters 49, no. 11 (2007): 2825–27. http://dx.doi.org/10.1002/mop.22875.

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22

Imani, Mohammad Amin, Farzin Shama, and Gholam Hossein Roshani. "Miniaturized Wilkinson power divider with suppressed harmonics." Microwave and Optical Technology Letters 62, no. 4 (December 5, 2019): 1526–32. http://dx.doi.org/10.1002/mop.32201.

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23

Shaterian, Zahra, and Ali Karami Horestani. "Ultra‐wideband multi‐section Wilkinson power divider." Microwave and Optical Technology Letters 63, no. 1 (August 6, 2020): 75–81. http://dx.doi.org/10.1002/mop.32562.

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24

Wang, Xiaolong, Iwata Sakagami, and Atsusni Mase. "Miniaturized Wilkinson power divider with two capacitors." Microwave and Optical Technology Letters 56, no. 2 (December 23, 2013): 301–4. http://dx.doi.org/10.1002/mop.28015.

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25

Lin, Yo-Sheng, and Kai-Siang Lan. "Spiral-Coupled-Line-Based Wilkinson Power Divider." IEEE Microwave and Wireless Components Letters 31, no. 3 (March 2021): 241–44. http://dx.doi.org/10.1109/lmwc.2021.3051857.

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26

Wu, Duolong, Adriana Serban, Magnus Karlsson, and Shaofang Gong. "Highly Unequal Three-Port Power Divider: Theory and Implementation." International Journal of Antennas and Propagation 2018 (July 19, 2018): 1–8. http://dx.doi.org/10.1155/2018/9141964.

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A three-port power divider consisting of a directional coupler, a Wilkinson power divider, and two transmission lines connected to them is proposed. Theoretical analysis reveals that highly unequal power division can be achieved by a feedback mechanism of two transmission lines along with the coupling coefficient of the directional coupler and the power division ratio of the Wilkinson power divider. The three-port power divider inherits the performance characteristics of high isolation, low reflection coefficients at all ports, and the minimum number of components. The proposed power divider is designed at 5.8 GHz and fabricated and evaluated through measurements. It demonstrates that electromagnetic simulation results are in good agreement with theoretical prediction and measurement results. The three-port power divider is compact in the planar form, so it can be easily integrated into radio frequency front ends.

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27

Najib, Nadera, Kok Yeow You, Chia Yew Lee, Mohamad Ngasri Dimon, and Nor Hisham Khamis. "Miniaturization of Broadband Wilkinson Power Dividers." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 1 (April 1, 2018): 241. http://dx.doi.org/10.11591/ijeecs.v10.i1.pp241-247.

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This paper proposed three modified Wilkinson power dividers in order to achieve a size reduction and a wide bandwidth. The first structure presented the power divider using compact folded step impedance transmission lines rather than the uniform microstrip line design for operating center frequency of 3 GHz. The second structure showed the power divider with delta-stub for 2.4 GHz. Finally, the third modified structure introduced the two-section Wilkinson power divider using series-delta stub for center frequency of 2.4 GHz as well. The study managed to get an overall dimension of 15 mm × 9.5 mm for the first proposed design achieving a reduction of 75.6 % and fractional bandwidth of 133 %. For the second proposed structure, the size was 15 mm × 15 mm with a reduction of 56 % and fractional bandwidth of 56 %. While the third design size was 17 mm × 15 mm with a reduction of 63.6 % and the structure achieved a broadband bandwidth with fractional bandwidth of 220 %. The proposed power dividers used RT/duroid 5880 substrate with a thickness of 0.38 mm. Simulation and measurement results indicated that the modified power dividers showed equal power division, good phase balance, high isolation between output ports, and good return loss better than -12 dB covering the operating frequency range<strong>.</strong>

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28

Park, Soonwoo, Heeje Han, Chanwoo Kim, Jaemin Bae, Youngki Cho, and Hongjoon Kim. "Compact Band-Selective Power Divider Using One-Dimensional Metamaterial Structure." International Journal of Antennas and Propagation 2019 (December 6, 2019): 1–4. http://dx.doi.org/10.1155/2019/3869812.

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A band-selective power divider is demonstrated for the first time. By replacing lumped element right-handed (RH) and left-handed (LH) transmission lines (TL) in a conventional Wilkinson power divider, it is possible to achieve both power division and filtering simultaneously. By utilizing the positive phase propagation property of an RHTL, which works as a low-pass filter, and the negative phase propagation property of an LHTL, which works as a high-pass filter, the band-selective quarter-wave sections required to construct a Wilkinson power divider are implemented. The fabricated circuit shows an insertion loss in the range 1.7 dB–2.5 dB in the passband, with the circuit dimensions of merely 12 mm by 10 mm.

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29

Yang, Zhen, Weiguo Liu, Chen Miao, Xin-an Yuan, and Wen Wu. "A Balanced-to-Single-Ended Wilkinson Power Divider." Journal of Microwaves, Optoelectronics and Electromagnetic Applications 16, no. 3 (September 2017): 777–84. http://dx.doi.org/10.1590/2179-10742017v16i3924.

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30

Kang, In-Ho, and Hai-Yan Xu. "Modified Wilkinson Power Divider for Multiple Harmonics Suppression." Journal of Navigation and Port Research 29, no. 7 (September 1, 2005): 615–18. http://dx.doi.org/10.5394/kinpr.2005.29.7.615.

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31

Kim, Jong-Sung. "Modified Wilkinson Power Divider for nth Harmonic Suppression." Journal of the Institute of Electronics and Information Engineers 50, no. 1 (January 25, 2013): 46–50. http://dx.doi.org/10.5573/ieek.2013.50.1.046.

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32

Yin, Si‐Yu, Jia‐Lin Li, and Shan‐Shan Gao. "Compact dual‐band five‐way Wilkinson power divider." Electronics Letters 53, no. 13 (June 2017): 866–68. http://dx.doi.org/10.1049/el.2017.1423.

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33

Tas, Vahdettin, and Abdullah Atalar. "An Optimized Isolation Network for the Wilkinson Divider." IEEE Transactions on Microwave Theory and Techniques 62, no. 12 (December 2014): 3393–402. http://dx.doi.org/10.1109/tmtt.2014.2365533.

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34

Hayati, Mohsen, Saeed Roshani, and Sobhan Roshani. "A Simple Wilkinson Power Divider with Harmonics Suppression." Electromagnetics 33, no. 4 (May 2013): 332–40. http://dx.doi.org/10.1080/02726343.2013.777325.

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35

Kun-Hui Yi and Bongkoo Kang. "Modified Wilkinson power divider for nth harmonic suppression." IEEE Microwave and Wireless Components Letters 13, no. 5 (May 2003): 178–80. http://dx.doi.org/10.1109/lmwc.2003.811670.

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36

Jianpeng Wang, Jia Ni, Yong-Xin Guo, and Dagang Fang. "Miniaturized Microstrip Wilkinson Power Divider With Harmonic Suppression." IEEE Microwave and Wireless Components Letters 19, no. 7 (July 2009): 440–42. http://dx.doi.org/10.1109/lmwc.2009.2022124.

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37

Chau, W. ‐M, K. ‐W Hsu, and W. ‐H Tu. "Wide‐stopband Wilkinson power divider with bandpass response." Electronics Letters 50, no. 1 (January 2014): 39–40. http://dx.doi.org/10.1049/el.2013.3264.

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38

Wu, Guoan, Lingling Yang, Yinlei Zhou, and Qinfen Xu. "Wilkinson power divider design for dual‐band applications." Electronics Letters 50, no. 14 (July 2014): 1003–5. http://dx.doi.org/10.1049/el.2014.0741.

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39

Feng, Cong, Gang Zhao, Xu-Feng Liu, and Fu-Shun Zhang. "A novel dual-frequency unequal Wilkinson power divider." Microwave and Optical Technology Letters 50, no. 6 (2008): 1695–99. http://dx.doi.org/10.1002/mop.23447.

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40

Yu, Yantao, Shiyong Chen, Meng Li, and Mingchun Tang. "Modified Wilkinson power divider with uniform characteristic impedance." Microwave and Optical Technology Letters 61, no. 1 (November 26, 2018): 280–83. http://dx.doi.org/10.1002/mop.31419.

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41

He, Jun, Zhao Feng Chen, Bao Hai Yang, and Mei Ying Xiong. "Miniaturized microstrip wilkinson power divider with capacitor loading." Microwave and Optical Technology Letters 54, no. 1 (November 22, 2011): 61–63. http://dx.doi.org/10.1002/mop.26484.

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42

PARK, M. J., and B. LEE. "Dual-Band Wilkinson Power Divider with Extended Outputs." IEICE Transactions on Electronics E91-C, no. 10 (October 1, 2008): 1706–8. http://dx.doi.org/10.1093/ietele/e91-c.10.1706.

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43

Vaziri, Hamid Sherafat, Sepehr Zarghami, Farzin Shama, and Amir Hossein Kazemi. "Compact bandpass Wilkinson power divider with harmonics suppression." AEU - International Journal of Electronics and Communications 117 (April 2020): 153107. http://dx.doi.org/10.1016/j.aeue.2020.153107.

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44

Jedkare, Ehsan, Farzin Shama, and Mohammad Amir Sattari. "Compact Wilkinson power divider with multi-harmonics suppression." AEU - International Journal of Electronics and Communications 127 (December 2020): 153436. http://dx.doi.org/10.1016/j.aeue.2020.153436.

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45

Li, Chong, Lai Bun Lok, Ata Khalid, Vasileios Papageorgiou, James Grant, and David R. S. Cumming. "Millimeter-wave coplanar stripline power dividers." International Journal of Microwave and Wireless Technologies 5, no. 3 (May 1, 2013): 205–12. http://dx.doi.org/10.1017/s1759078713000421.

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We present the design, fabrication, and measurement of a 2-way modified Wilkinson divider constructed in a coplanar geometry exhibiting ultra wideband isolation, transmission, and port matching in the millimeter-wave frequency range. The proposed divider replaces the lumped resistor in the conventional Wilkinson divider with two quarter-wave length transmission lines, a phase inverter, and two 2Z0 resistors. Except for the three ports that are coplanar waveguides (CPWs), the main body of the divider uses coplanar striplines (CPS). The phase inverter is realized using a simple airbridge-based crossover which is compatible with a modern monolithic microwave integrated circuit process. The divider has a ring-like configuration fabricated on a 620 µm thick semi-insulating GaAs wafer using electron beam lithography (EBL) technology. Three-dimensional (3D) full-wave electromagnetic simulations have been carried out to optimize the design and investigate the possible effect of fabrication tolerance on the performance of the crossover and the divider. Two dividers working at center frequencies of 25 and 80 GHz have been designed, fabricated, and tested. They all show consistent performance in terms of bandwidth, isolation, and port matching. Experimental and simulation results are in excellent agreement.

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46

Wu, Guoan, Siyuan Dong, and Qinfen Xu. "The Integrated Design of Power Dividerand Low-pass Filter." Frequenz 72, no. 11-12 (November 27, 2018): 517–21. http://dx.doi.org/10.1515/freq-2017-0206.

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Abstract A compact filtering Wilkinson power divider with harmonic suppression based on lumped components is presented in this paper. The new divider uses two 5th-order elliptic-function low-pass filters to replace the quarter wavelength microstrip lines of the conventional Wilkinson power divider. The structure combines the power divider and the filter into a complete device. By integrating elliptic low-pass filters with the power divider, the proposed structure can suppress harmonics due to the filter’s band-notched characteristic. The power divider demonstrates a measured suppression of 37.1 dB for the second harmonic, 36.6 dB for the third harmonic, 38.6 dB for the fourth harmonic respectively. The harmonic suppression is higher than 20 dB from 2.75 to 7.035 GHz. Furthermore, lumped components are utilized to achieve improvement on size reduction. Compared with the conventional divider, the proposed structure effectively reduces the size by 77 %. The insertion loss is 3.2 dB at the center frequency (1.45GHz).

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47

Pan, Wei-Qiang, Jin-Xu Xu, Kai Xu Wang, and Xiao Lan Zhao. "Compact Unequal Power Divider with Filtering Response." International Journal of Antennas and Propagation 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/658102.

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We present a novel unequal power divider with bandpass responses. The proposed power divider consists of five resonators and a resistor. The power division ratio is controlled by altering the coupling strength among the resonators. The output ports have the characteristic impedance of 50 Ω and impedance transformers in classical Wilkinson power dividers are not required in this design. Use of resonators enables the filtering function of the power divider. Two transmission zeros are generated near the passband edges, resulting in quasielliptic bandpass responses. For validation, a 2 : 1 filtering power divider is implemented. The fabricated circuit size is 0.22λg × 0.08λg, featuring compact size for unequal filtering power dividers, which is suitable for the feeding networks of antenna arrays.

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48

Liu, Shuai, Jun Xu, and Zhitao Xu. "Wideband power divider using Gysel and modified Wilkinson structure." IEICE Electronics Express 13, no. 17 (2016): 20160736. http://dx.doi.org/10.1587/elex.13.20160736.

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49

Li, Xi, Lin Yang, Jia Hou, Yan-Ping Guo, and Chen Gong. "Novel design of dual-band unequal Wilkinson power divider." International Journal of Applied Electromagnetics and Mechanics 44, no. 1 (January 5, 2014): 27–31. http://dx.doi.org/10.3233/jae-131732.

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50

Moubarek, Traii, and Ali Gharsallah. "A Six-Port Reflectometer Calibration Using Wilkinson Power Divider." American Journal of Engineering and Applied Sciences 9, no. 2 (February 1, 2016): 274–80. http://dx.doi.org/10.3844/ajeassp.2016.274.280.

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