Yao CHEN, Sheng-Wei ZHANG. Design of millimeter-wave detectors based on zero-bias Schottky diode for direct detection system of CubeSat radiometer[J]. Journal of Infrared and Millimeter Waves, 2022, 41(1): 2021017
- Journal of Infrared and Millimeter Waves
- Vol. 41, Issue 1, 2021017 (2022)
Fig. 1. (a) Typical zero-bias detector circuit structure，(b) improved zero-bias detector structure
Fig. 2. (a) Structure of the QVSD and its 3D electromagnetic model in HFSS, (b) equivalent circuits of the QVSD and diode junction area
Fig. 3. (a) Short-circuit structure of the QVSD and its port loading model in HFSS (b) equivalent circuit
Fig. 4. Simulated and measured I-V characteristic: (a) 3DSF20 (b)
Fig. 5. Transition models and simulated S-parameters: (a) W-band (b) D-band
Fig. 6. Radial stub structure models and Smith chart simulation results: (a) W-band, (b) D-band
Fig. 7. Integrated circuit structure
Fig. 8. Integrated circuit models in HFSS: (a) W-band (b) D-band
Fig. 9. Photos of two detector modules and their circuits: (a) W-band (b) D-band
Fig. 10. Photo of return loss test platform
Fig. 11. Simulated, measured, and fixed return loss: (a) W-band detector (b) D-band detector
Fig. 12. Test platform
Fig. 13. Simulated and measured voltage sensitivity: (a) W-band detector (b) D-band detector
Fig. 14. Measured linearity: (a) W-band detector, (b) D-band detector
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Table 1. 3D electromagnetic model parameters of the QVSD
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Table 2. Calculated
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Table 3. Calculated parameters of
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Table 4. Original and fixed parameters of
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Table 5. Voltage sensitivity comparison
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