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

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