Performance Driven Six-Port Receiver and Its Advantages over Low-IF Receiver Architecture

Table 3

EVM (%) performance of different receivers under test.

Signal type	Conventional six-port receiver [9, 13]	Calibrated six-port receiver [9]	Low-IF receiver	Direct conversion receiver
16-QAM 1 MHz	4.19	0.64	6.88	21.25
16-QAM 2 MHz	6.42	0.80	4.99	15.06
16-QAM 10 MHz	7.35	2.51	4.69	7.02
64-QAM 1 MHz	4.50	0.73	6.90	22.20
64-QAM 2 MHz	6.58	0.77	5.38	16.23
64-QAM 10 MHz	7.40	2.48	4.59	8.65