Research Article
Comparison of 6 Diode and 6 Transistor Mixers Based on Analysis and Measurement
Table 2
Comparison of analysis and measurement.
| | Conversion loss | OIP3 | PLO at RF port | PLO at IF port | | At 0 dBm RF | At 0 dBm RF | At 0 dBm RF | At 0 dBm RF | | Anal | Meas | Anal | Meas | Anal | Meas | Anal | Meas | | dB | dB | dBm | dBm | dBm | dBm | dBm | dBm |
| 2-diode mixer | 11.2 | 11.76 | 6.73 | 7.02 | −15.8 | −44.36 | −28.1 | −37.4 | 4-diode ring mixer | 4.45 | 7.08 | 12.18 | 13.41 | −23.28 | −24.99 | −55.83 | −62.36 | 8-diode triple balanced | 6.74 | 7.007 | 10.29 | 10.87 | −22.99 | −10.16 | −65.62 | −70.9 | 8-diode rectifier type | 5.24 | 7.726 | 13.84 | 15.29 | −22.27 | −22.27 | −32.29 | −48.51 | Half H with diodes | 7.97 | 9.02 | 13.49 | 11.68 | −21.38 | −17.02 | 16.63 | 18.01 | Full H with diodes | 7.76 | 5.93 | 12.27 | 11.41 | 33.59 | −29.9 | −152.3 | −45.54 |
| Four-quadrant multiplier | 5.48 | 5.59 | See pls. Figure 22 | −294.9 | −51.05 | −93.23 | −62.14 | Half H | 5.4 | 5.02 | 16 | 11.89 | −58.11 | −32.91 | −19.33 | −29.88 | Half H, Russian type | 6.56 | 5.46 | 14.1 | 11.59 | −58.79 | −18.63 | −19.6 | −31.11 | Original full H | 4.86 | 4.09 | 11.84 | 12.67 | −35.5 | −53.95 | −49.48 | −54.62 | Simplified H | 5.4 | 4.73 | 12.4 | 11.68 | −58.05 | −44.37 | −71.24 | −67.99 | FET ring | 5.36 | 4.87 | 12.5 | 11.85 | −55.82 | −46.4 | −71.32 | −76.65 |
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None of them needs DC supply except the four-quadrant multiplier, ±12 V 30 mA.
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