Performance of 2–3.6 GHz Five-Port/Three-Phase Demodulators with Baseband Analog Regeneration Circuit in Direct-Conversion Receivers

Figure 5

Measured phase shift of 𝑣₃(𝑡) and 𝑣₅(𝑡) with respect to 𝑣₄(𝑡) (Φ₃−Φ₄, Φ₄−Φ₅) and phase difference between 𝐼_OUT(𝑡) and 𝑄_OUT(𝑡) signals for (a) FPD and (b) TPD and comparison with IQD in both cases (𝑃_LO=5 dBm, 𝑃_RF=−25 dBm, and Δ𝑓=10 kHz).

(a)

(b)