Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter

Table 1

Relative error with different filter orders.

Design method	Order
	4	6	12	30	56
	Time domain [6, 8]	7.92%	7.01%	5.43%	3.70%	2.82%
Frequency domain [7]	6.80%	5.17%	2.82%	0.76%	0.17%
Farrow structure	15.23%	13.25%	3.55%	1.54%	0.74%