基于二极管3D精确模型的0.42 THz分谐波混频器
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摘要
基于电子科技大学与中国电子科技集团第十三研究所自主联合设计的肖特基二极管研制宽带360~440 GHz分谐波混频器。详细描述二极管建模,以模拟在极高频复杂电磁环境中由于二极管结构引入的相关寄生效应.在软件HFSS与ADS中,通过场与路结合的方法对分谐波混频器进行优化.实测结果显示在本振信号为210 GHz本振功率6 d Bm的驱动下,在406 GHz可得到最小变频损耗9.99 d B,在380~430 GHz范围内,变频损耗小于15 d B,在360~440 GHz范围内,变频损耗小于19 d B.
A broadband 360 ～ 440 GHz subharmonic mixer based on Schottky diode designed by UESTC and fabricated by CETC-13 is presented. Diode modeling is described to simulate the electromagnetic environment due to geometry-dependent parasitic effects in the extremely high frequency band. The whole subharmonic mixer is optimized by means of combination of field and circuit in HFSS and ADS.Measured results show that the sub-harmonic mixer yields minimum conversion loss of 9. 99 dB at 406 GHz,while the conversion loss was less than 15 dB over 380 GHz to 430 GHz and less than 19 dB over360 GHz to 440 GHz when LO power was 6 dBm at 210 GHz.
A broadband 360 ～ 440 GHz subharmonic mixer based on Schottky diode designed by UESTC and fabricated by CETC-13 is presented. Diode modeling is described to simulate the electromagnetic environment due to geometry-dependent parasitic effects in the extremely high frequency band. The whole subharmonic mixer is optimized by means of combination of field and circuit in HFSS and ADS.Measured results show that the sub-harmonic mixer yields minimum conversion loss of 9. 99 dB at 406 GHz,while the conversion loss was less than 15 dB over 380 GHz to 430 GHz and less than 19 dB over360 GHz to 440 GHz when LO power was 6 dBm at 210 GHz.
引文
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[2]HOSAKO Iwao,SEKINE Norihiko,PATRASHIN Mikhail,et al.At the dawn of a new era in terahertz technology[J].Proceedings of IEEE,2007,95(8):1611-1623.
[3]GAIDIS M C,PICKETT H M,SMITH C D,et al.A 2.5THz receiver front end for spaceborne applications[J].IEEE Transactions on Microwave Theory and Techniques,2000,48(4):733-739.
[4]BULCHA B T,KURTZ D S,GROPPI C,et al.THz Schottky diode harmonic mixers for QCL phase-locking[C].201338th International Conference on Infrared,Millimeter,and Terahertz Waves(IRMMW-THz),Mainz,2013:1-2.
[5]HESLER J L,HUI Kai,HE Song,et al.A fixed-tuned 400GHz subharmonic mixer using planar schottky diodes[C].Tenth International Symposium on Space Terahertz Technology,1999:95-99.
[6]ALIJABBARI N,BAUWENS M,WEIKLE R.Design and characterization of integrated submillimeter wave quasi-vertical schottky diodes[J].IEEE Transactions on Terahertz Science and Technology,2015,5(1):73-80.
[7]MEHDI I,SILES J V,LEE C,et al.THz Diode Technology:Status,Prospects,and Applications[J].Proceedings of the IEEE,2017,105(6):990-1007.
[8]CHEN Zhe,ZHANG Bo,FAN Yong,et al.Design of a low noise 190-240 GHz subharmonic mixer based on 3D geometric modeling of Schottky diodes and CAD load-pull techniques[J].IEICE Electronics Express,2016,13(16):20160604.
[9]HESLER J L,XU H,RECK T.Development and testing of a 2.5 THz Schottky mixer[C],Infrared,Millimeter and Terahertz Waves(IRMMW-THz),2011 36th International Conference on IEEE,2011:1-2.
[10]YHLAND Klas.Simplified Analysis of Resistive Mixers[J].IEEE Microwave and Wireless Components Letters,2007,17(8):604-606.
[11]CHEN Zhe,ZHANG Bo,ZHANG Yong,et al.220GHz outdoor wireless communication system based on a Schottkydiode transceiver[J].IEICE Electronics Express,2016,13(9):20160282.
[12]TANG Aik Yean,STAKE Jan,Impact of eddy currents and crowding effects on high-frequency losses in planar Schottky diodes[J].IEEE Transactions on Electron Devices,2011,58(10):3260-3269.
[13]XU H,SCHOENTHAL G,LIU L,et al.On Estimating and Canceling Parasitic Capacitance in SubmillimeterWave Planar Schottky Diodes[J].IEEE Microwave and Wireless Components Letters,2009,19(12):807-809.
[14]TSENG Y C,BOKOR J.Characterization of the junction capacitance of metal-semiconductor carbon nanotube Schottky contacts[J].Applied Physics Letters,2010,96(1):013103-013103-3.
[15]DAHLBERG K.Development of on-wafer calibration methods and planar Schottky diode characterisation at THz frequencies[D].Helsinki:Aalto University,2014.
[16]MAESTRINI A,WARD J S,GILL J J,et al.A 540-640GHz high-efficiency four-anode frequency tripler[J].IEEE Transactions on Microwave Theory and Techniques,2005,53(9):2835-2843.