Fig 1.
Block diagram of a switched beam selection system for 5G communication system for UE.
Fig 2.
Block diagram of general double-conversion transmitter.
Fig 3.
Frequency domain analysis for a double-conversion transmitter.
Fig 4.
Frequency domain interpretation of a double quadrature architecture for the baseband I and Q channels.
Fig 5.
Vector sum diagram of the harmonic rejection technique.
Fig 6.
Three-phase LO square waves and the final quantized sinusoid LO signal.
Fig 7.
Block diagram of a 26-GHz transmitter front-end.
Fig 8.
Schematic of harmonic rejection mixer core.
Fig 9.
IF mixer with eight phases of LO signals.
Fig 10.
Tunable inductor.
Fig 11.
Mm-wave mixer block diagram for image rejection.
Fig 12.
Schematic of the mm-wave mixer core and buffer.
Fig 13.
Schematic of pre-power amplifier.
Fig 14.
Physical layout of the transformer balun.
Fig 15.
Simulated insertion loss of the transformer balun.
Fig 16.
Microphotograph of the mm-wave transceiver.
Fig 17.
Measurement setup for the 26-GHz transmitter front-end.
Fig 18.
Simulated and measured voltage conversion gains and output return loss of the proposed mm-wave transmitter front-end.
Fig 19.
Simulation and measurement results of the output power versus input voltage.
Fig 20.
Measured third-order intermodulation distortion versus input voltage.
Table 1.
Measured harmonic spurs.
Fig 21.
Measured constellation and spectrum for OFDM 16-QAM.
Table 2.
Comparison table with CMOS mm-wave transmitters performance.