Fig. 1.
Configuration of the proposed active circulator.
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Liming Gu, Wenquan Che, Fan-Hsiu Huang, Hsien-Chin Chiu. A high power active circulator using GaN MMIC power amplifiers[J]. Journal of Semiconductors, 2014, 35(11): 115003. doi: 10.1088/1674-4926/35/11/115003
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L M Gu, W Q Che, F H Huang, H C Chiu. A high power active circulator using GaN MMIC power amplifiers[J]. J. Semicond., 2014, 35(11): 115003. doi: 10.1088/1674-4926/35/11/115003.
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A high power active circulator using GaN MMIC power amplifiers
DOI: 10.1088/1674-4926/35/11/115003
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Abstract
This paper presents a 2.4 GHz hybrid integrated active circulator consisting of three power amplifiers and three PCB-based Wilkinson power dividers. The power amplifiers were designed and fabricated in a standard 0.35-μm AlGaN/GaN HEMT technology, and combined with three traditional power dividers on FR4 using bonding wires. Due to the isolation of power dividers, the isolation between three ports is achieved; meanwhile, due to the unidirectional characteristics of the power amplifiers, the nonreciprocal transfer characteristic of the circulator is realized. The measured insertion gain of the proposed active circulator is about 2-2.7 dB at the center frequency of 2.4 GHz, the isolation between three ports is better than 20 dB over 1.2-3.4 GHz, and the output power of the designed active circulator achieves up to 20.1-21.2 dBm at the center frequency. -
References
[1] Palomba M, Bentini A, Palombini D, et al. A novel hybrid active quasi-circulator for L-band applications. International Conference on Microwave, Radar and Wireless Communication, Warsaw, Poland, 2012:41 http://ieeexplore.ieee.org/document/6233533/[2] Lax B, Button K J. Microwave ferrites and ferromagnetic. McGraw-Hill, 1962 http://ci.nii.ac.jp/ncid/BA1136165X[3] Tanaka S, Shimomura N, Ohtake K. Active circulators-the realization of circulators using transistors. Proc IEEE, 1965, 53:260 doi: 10.1109/PROC.1965.3683[4] Ayasli Y. Field effect transistor circulators. IEEE Trans Magn, 1989, 25(5):3242 doi: 10.1109/20.42266[5] Berg M, Hackbarth T, Maile B E, et al. Active circulator MMIC in CPW technology using quarter micron InAlAs/InGaAs/InP HEFTs. Proc 8th Int Indium Phosphide Rel Mater Conf, 1996:68 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=491936[6] Cryan M J, Hall P S. An integrated active circulator antenna. IEEE Microw Guided Wave Lett, 1997, 7(7):190 doi: 10.1109/75.594860[7] Shin S C, Huang J Y, Lin K Y, et al. A 1.5-9.6 GHz monolithic active quasi-circulator in 0.18μm CMOS technology. IEEE Microw Wireless Compon Lett, 2008, 18(12):797 doi: 10.1109/LMWC.2008.2007703[8] Cheung S, Halloran T, Weedon W, et al. Active quasi circulators using quadrature hybrids for simultaneous transmit and receive. IEEE MTT-S Int Microw Symp Dig, 2009:381 http://ieeexplore.ieee.org/document/5165713/[9] Wu H S, Wang C W, Tzuang C K C. CMOS active quasi-circulator with dual transmission gains incorporating feedforward technique at K-band. IEEE Trans Microw Theory Tech, 2010, 58(8):2084 doi: 10.1109/TMTT.2010.2052405[10] Chang C H, Lo Y T, Kiang J F. A 30 GHz active quasi-circulator with current-reuse technique in 0.18μm CMOS technology. IEEE Microw Wireless Compon Lett, 2010, 20(12):693 doi: 10.1109/LMWC.2010.2079321[11] Huang D, Kuo J, Wang H. A 24-GHz low power and high isolation active quasi-circulator. IEEE MTT-S International Microwave Symposium Digest, 2012:1 http://ieeexplore.ieee.org/document/6258379/[12] Kawai T, Toyoda S. 20 GHz band active circulator utilizing fin-line. International Conference on Infrared, Millimeter, and Terahertz Waves, 2012:1 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6380409[13] Liu B, Feng Z. An extrinsic fmax > 100 GHz InAlN/GaN HEMT with AlGaN back barrier. Journal of Semiconductors, 2013, 34(4):044006 doi: 10.1088/1674-4926/34/4/044006[14] Pozar D M. Microwave engineering. 3rd ed. New York:Wiley, 2005[15] Gu L, Feng W, Che W, et al. Investigations on bonding wire array for interconnect of RFICs. International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2012:1 http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=6230406 -
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