Volume 48 Issue 7
Jul.  2019
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Hu Haifan, Zhao Ziran, Ma Xuming, Jiang Shoulu. Reasearch on 250 GHz sub-harmonic mixer based on GaAs Schottky diodes[J]. Infrared and Laser Engineering, 2019, 48(7): 722001-0722001(6). doi: 10.3788/IRLA201948.0722001
Citation: Hu Haifan, Zhao Ziran, Ma Xuming, Jiang Shoulu. Reasearch on 250 GHz sub-harmonic mixer based on GaAs Schottky diodes[J]. Infrared and Laser Engineering, 2019, 48(7): 722001-0722001(6). doi: 10.3788/IRLA201948.0722001

Reasearch on 250 GHz sub-harmonic mixer based on GaAs Schottky diodes

doi: 10.3788/IRLA201948.0722001
  • Received Date: 2019-02-10
  • Rev Recd Date: 2019-03-20
  • Publish Date: 2019-07-25
  • In order to compare and analyze the characteristics of two kinds of structure mixer through simulation design and measurement, the 250 GHz sub-harmonic mixers of suspended microstrip-line and conventional microstrip-line were designed respectively based on the Hammer-Head filter structure, combined with three-dimensional Schottky diode model and three-dimensional electromagnetic model. The results show that in the radio frequency(RF) range of 230-270 GHz, the conversion loss of single sideband converter was 8.6-12.7 dB for suspended microstrip-line mixer, while that was 8.4-11.4 dB for ordinary microstrip-line mixer with RF range of 220-260 GHz. Contrast results showed that the bandwidth of the suspended microstrip-line mixer was larger than that of the conventional microstrip-line mixer, but its flatness was worse. Finally, considering some undesirable factors introduced in the micro assembly processes, the simulation was calculated and compared with the measuring data, it was found that the results matched well.
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    [2] Zhao Xiangyang, Wang Junlong, Xing Dong, et al. Parameters model of terahertz planar Schottky diode[J]. Infrared and Laser Engineering, 2016, 45(12):1225004. (in Chinese)
    [3] Wang Junlong, Yang Dabao, Xing Dong, et al. Research of 0.2 THz broadband unbalanced multiplier circuit[J]. Infrared and Laser Engineering, 2017, 46(1):0106003. (in Chinese)
    [4] He Yue, Jiang Jun, Lu Bin, et al. High efficiency 170 GHz balanced Schottky diode frequency doubler[J]. Infrared and Laser Engineering, 2017, 46(1):0120003. (in Chinese)
    [5] Eric R Carlson. Schnider sub-harmonically pumped millimeter wave mixers[J]. IEEE Transactions on Microwave Theory and Techniques, 1978, 26(10):706-715.
    [6] Marvin S, Alderman B. Design of low-cost 183 GHz subharmonic mixer using planer schottky diodes[J].IEEE Microw Wirel Compon Lett, 2005, 15(12):865-867.
    [7] Min Wenchao, Sun Hao, Zhang Qilian, et al. A high-performance w-band subharmonic mixer based on anti-parallel diode pair[J]. Chinese Journal of Electron Devices, 2016, 39(6):1283-1286. (in Chinese)
    [8] Liu Ge, Zhang Bo, Zhang Lisen, et al. 0.42 THz subharmonic mixer based on 3D precisely modeled diode[J]. Journal of Infrared and Millimeter Waves, 2018, 37(3):338-343. (in Chinese)
    [9] Zhang Bo, Liu Ge, Yang Xiaofan, et al. Research on the front-end of 380 GHz radiometer[J]. Journal of Microwaves, 2015, 31(S1):26-29. (in Chinese)
    [10] He Yue, Huang Kun, Miao Li, et al. Design of 250 GHz terahertz sub-harmonic mixer[J]. Journal of Microwaves, 2015(S1):69-72. (in Chinese)
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Reasearch on 250 GHz sub-harmonic mixer based on GaAs Schottky diodes

doi: 10.3788/IRLA201948.0722001
  • 1. Department of Engineering Physics,Tsinghua University,Beijing 100083,China;
  • 2. Electromagnetic Perception Division,Nuctech Company,Beijing 100083,China

Abstract: In order to compare and analyze the characteristics of two kinds of structure mixer through simulation design and measurement, the 250 GHz sub-harmonic mixers of suspended microstrip-line and conventional microstrip-line were designed respectively based on the Hammer-Head filter structure, combined with three-dimensional Schottky diode model and three-dimensional electromagnetic model. The results show that in the radio frequency(RF) range of 230-270 GHz, the conversion loss of single sideband converter was 8.6-12.7 dB for suspended microstrip-line mixer, while that was 8.4-11.4 dB for ordinary microstrip-line mixer with RF range of 220-260 GHz. Contrast results showed that the bandwidth of the suspended microstrip-line mixer was larger than that of the conventional microstrip-line mixer, but its flatness was worse. Finally, considering some undesirable factors introduced in the micro assembly processes, the simulation was calculated and compared with the measuring data, it was found that the results matched well.

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