High dynamic range, high output power I/Q modulator in 50 GHz f/sub t/ SiGe technology

A Broadband Quadrature-Modulator in Standard 0.13 μm CMOS

“…However, comparison to other broadband directconversion quadrature-modulator's reported in [1,3,8,12,13] suggests state-of-the-art image rejection performance in support of the proposed selectable parallel PP-filtering approach. IRR and other characteristics which could gleaned from the publications have been compared in Table 3.…”

“…Die area including pads and wiring was set to a much larger value of 1.6 × 1.6 mm 2 due to MPW reasons 4. Since inductive degeneration and off-chip inductor loads were used, other RF-performance data than the IRR may vary significantly with frequency and have only been reported for the UMTS downlink frequencies as in[12] 5. Estimated with −3 dB power back-off from the given output compression point of −2 dBm.…”