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The same recommendation for the SMD components applies also for the divided by 2 output.

Another topology suitable to combine the two outputs for the divided by 2 frequencies is represented in

Figure 28.

Figure 28. Lumped output matching for the divided by 2 output

The balun used is the 50 to 100

Ω - 1.65GHz to 2.2GHz Johanson balun (1850BL15B100).

9.3 Divided by 4 output

The same topology, components values and considerations of

Figure 26, apply also for the divided by 4

output.

As for the previous sections, a solution to combine the differential outputs is the lumped LC type balun

tuned in the 1GHz band (

Figure 29). An output power of approximately 5 dBm is delivered to a 50

Ω load

over the whole band (825GHz to 1.1GHz).

Figure 29. LC lumped balun for the divided by 4 output

22nH

50 O hm

10pF

10pF

22nH

10pF

2:1

50 O hm

50 O hm

5.5nH

5.5nH

4pF

4pF

6pF

50 O hm

14nH

5.5nH

5.5nH

4pF

4pF

25 O hm

25 O hm