  We consider wireless communication systems with compact planar arrays having
densely spaced antenna elements in conjunction with one-bit analog-to-digital
and digital-to-analog converters (ADCs/DACs). We provide closed-form
expressions for the achievable rates with simple linear processing techniques
for the uplink as well as the downlink scenarios while taking into account the
effects of antenna mutual coupling. In the downlink case, we introduce the
concept of non-radiating dithering to combat correlations of the quantization
errors. Under higher antenna element density, we show that the performance of
the quantized system can be made close to the ideal performance regardless of
the operating signal-to-noise ratio.
