Agilent Technologies 89600 manual Appendix a, RF range Mixer If amp Remarks

Appendix A

Downconverting RF and Microwave Signals into the Range of the Agilent Acqiris Digitizers

External components with wide bandwidths can be used to downconvert signals into the range of the broadband VSAs.

The 89600 VSA software can account for the mixing equation of the external downconverter. While the downconverter cannot be controlled by the software, the downconverter’s input center frequency, IF bandwidth, external bandwidth, and IF mirroring can be taken into account by using the Utilities/Calibration / Frequency menu picks. See the Help text for further details on using the external frequency tool.

RF in	IF out
	200 to 500 MHz

LO in

Bandpass filter: Mini-Circuits BLP-600

IF amp: Mini-Circuits ZFL-500

Figure 10. Block diagram of suggested downconverter. See Table 4 for further details.

Table 7. External wideband downconverter details

RF range	Mixer	LO	IF amp	Remarks
0 to 2 GHz		None	None	Use digitizer Ch1 or Ch2
(see Table 1)				(VSA Ch2)
0.2 to 6 GHz	Marki1	16 to 19 dBm	Mini Circuits2	Mxr: CL = 8 dB, TOI = 18 dBm,
	M2-0006MA	FLO = FRF - FIF	ZFL-500	Amp: gain = 20 dB, NF = 5.5 dB,
			FIF – 200 -500 MHz	TOI = +18 dBm
5 to 40 GHz	Marki1	3 to 17 dBm	As above	Mxr: CL = 8 dB, TOI = 16 dBm
	M9-0540IN	FLO = FRF - FIF
25.6 to 40 GHz	Agilent	15 dBm	As above	8th harmonic waveguide mixer,
	11970A	FLO = (FRF - FIF)/8		Mxr: CL = 22 dB, TOI = 15 dBm
33 to 50 GHz	Agilent	15 dBm	As above	10th harmonic waveguide mixer,
	11970Q	FLO = (FRF - FIF)/10		Mxr: CL = 24 dB, TOI = 15 dBm
		FIF = 0 – 1 GHz

1.Marki Microwave, http://www.markimicrowave.com Telephone: 408-778-4200, FAX: 408-778-4300, 215 Vineyard Court, Morgan Hill, CA 95037

2.Mini-Circuits, Inc., 1-800-654-7949, 44-1252-83600, http://www.minicircuits.com.

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