Comparison of 6 Diode and 6 Transistor Mixers Based on Analysis and Measurement

Table 1

Analysis results.

	Conversion loss; at 0 dBm RF	OIP3; at 0 dBm RF	OIP3max; at PRF	IIP3max; at PRF	PLO at RF port; at 0 dBm RF	PLO at IF port; at 0 dBm RF
	dB	dBm	dBm	dBm	dBm	dBm
2-diode mixer	11.2	6.73	10.56 at +5	21.76 at +5	−15.8	−28.1
4-diode ring mixer	4.45	12.18	14.18 at −5	18.63 at −5	−23.28	−55.83
8-diode triple balanced	6.74	10.29	14.83 at +10	21.57 at +10	−22.99	−65.62
8-diode rectifier type	5.24	13.84	14.9 at −10	20.14 at 10	−22.27	−32.29
Half H with diodes	7.97	13.49	13.49 at 0	21.46 at 0	−21.38	16.63
Full H with diodes	7.76	12.27	17.53 at +10	25.29 at +10	33.59	−152.3
Four-quadrant multiplier	5.48	See pls. Figure 22			−294.9	−93.23
Half H	5.4	16	23.8 at +5	29.2 at +5	−58.11	−19.33
Half H, Russian type	6.56	14.1	23.3 at +20	29.86 at +20	−58.79	−19.6
Original full H	4.86	11.84	17.78 at +5	22.64 at +5	−35.5	−49.49
Simplified H	5.4	12.4	24.6 at +10	30 at +10	−58.05	−71.24
FET ring	5.36	12.5	24.6 at +10	29.96 at +10	−55.82	−71.32

None of them needs DC supply except the four-quadrant multiplier, ±12 V 30 mA.