An Investigation into the correction requirements for reducing channel mismatch introduced in analogue filters in adaptive array antennas

One of the most significant sources of dispersive errors within a receiver is the band-defining analogue filter. In this presentation we describe the design of a number of such filters and model the dispersion caused by realistic filter errors. We investigate the effects of these errors in simulations of adaptive interference rejection using a subarrayed phased array radar and show how accurate calibration can effectively restore error-free performance levels.