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How to match LTC5562 LO ranging from 3GHz to 7.5GHz

How do I match LO port of LTC5562, my LO ranges from 3GHz to 7.5GHz?

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  • Table 2 shows single ended LO input impedance and reflection coefficients which are not consistent with each other. For example, at 10MHz, impedance is 195.29-j2576.34 but magnitude of reflection coefficient is shown as 0.59 (it should be 0.997 for this impedance at 50 ohms).

    Also, using a simulator to plot return loss given the table 2 impedances and table 4 matching components differs significantly from the curves shown in Figure 8.

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  • Table 2 shows single ended LO input impedance and reflection coefficients which are not consistent with each other. For example, at 10MHz, impedance is 195.29-j2576.34 but magnitude of reflection coefficient is shown as 0.59 (it should be 0.997 for this impedance at 50 ohms).

    Also, using a simulator to plot return loss given the table 2 impedances and table 4 matching components differs significantly from the curves shown in Figure 8.

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