SEMICONDUCTOR INTEGRATED CIRCUITS

Millimeter wave broadband high sensitivity detectors with zero-bias Schottky diodes

Changfei Yao1, 2, , Ming Zhou2, Yunsheng Luo2 and Conghai Xu2

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 Corresponding author: Changfei Yao, Email: yaocf1982@163.com

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Abstract: Two broadband detectors at W-band and D-band are analyzed and designed with low barrier Schottky diodes. The input circuit of the detectors is realized by low and high impedance microstrip lines, and their output circuit is composed of a radio frequency (RF) bandstop filter and a tuning line for optimum reflection phase of the RF signal. S-parameters of the complete circuit are exported to a circuit simulator for voltage sensitivity analysis. For the W band detectors, the highest measured voltage sensitivity is 11800 mV/mW at 100 GHz, and the sensitivity is higher than 2000 mV/mW in 80-104 GHz. Measured tangential sensitivity (TSS) is higher than-38 dBm, and its linearity is superior than 0.99992 at 95 GHz. For the D band detector, the highest measured voltage sensitivity is 1600 mV/mW, and the typical sensitivity is 600 mV/mW in 110-170 GHz. TSS is higher than-29 dBm, and its linearity is superior than 0.99961 at 150 GHz.

Key words: millimeter wavezero bias Schottky diodedetectorvoltage sensitivity



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Fig. 1.  Diode chip model in HFSS.

Fig. 2.  Schematic of the detector circuit.

Fig. 3.  Global optimization of the detector.

Fig. 4.  Photo of the W-band and D-band detector.

Fig. 5.  Measurement setup of the detector.

Fig. 6.  Measured voltage sensitivity of the W-band detector ($P_{\rm in}$~$=-25$ dBm).

Fig. 7.  Measured input return loss of the W-band detector.

Fig. 8.  Measured voltage response of the W-band detector at 95~GHz.

Fig. 9.  Measured voltage sensitivity of the D-band detector ($P_{\rm in}$~$=-20$ dBm).

Fig. 10.  Measured input return loss of the D-band detector.

Fig. 11.  Measured voltage response of the D-band detector at 150~GHz.

Table 1.   Measured TSS of the D-band detector.

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Table 2.   Measured TSS of the W-band detector.

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Table 3.   Performance comparison.

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    Received: 13 August 2014 Revised: Online: Published: 01 June 2015

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      Changfei Yao, Ming Zhou, Yunsheng Luo, Conghai Xu. Millimeter wave broadband high sensitivity detectors with zero-bias Schottky diodes[J]. Journal of Semiconductors, 2015, 36(6): 065002. doi: 10.1088/1674-4926/36/6/065002 C F Yao, M Zhou, Y S Luo, C H Xu. Millimeter wave broadband high sensitivity detectors with zero-bias Schottky diodes[J]. J. Semicond., 2015, 36(6): 065002. doi: 10.1088/1674-4926/36/6/065002.Export: BibTex EndNote
      Citation:
      Changfei Yao, Ming Zhou, Yunsheng Luo, Conghai Xu. Millimeter wave broadband high sensitivity detectors with zero-bias Schottky diodes[J]. Journal of Semiconductors, 2015, 36(6): 065002. doi: 10.1088/1674-4926/36/6/065002

      C F Yao, M Zhou, Y S Luo, C H Xu. Millimeter wave broadband high sensitivity detectors with zero-bias Schottky diodes[J]. J. Semicond., 2015, 36(6): 065002. doi: 10.1088/1674-4926/36/6/065002.
      Export: BibTex EndNote

      Millimeter wave broadband high sensitivity detectors with zero-bias Schottky diodes

      doi: 10.1088/1674-4926/36/6/065002
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      • Corresponding author: Email: yaocf1982@163.com
      • Received Date: 2014-08-13
      • Accepted Date: 2015-01-22
      • Published Date: 2015-01-25

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