Under fixed element count ULAs achieve narrower beamdepth, longer EBRD and higher sum rate than UCAs; under fixed aperture UCAs show marginal gains, with new closed-form EBRD and beamdepth expressions for UCAs.
The asymptotic expansion of bessel functions of large order,
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Uniform Circular Arrays in Near-Field: Omnidirectional Coverage with Limited Capacity
Under fixed element count ULAs achieve narrower beamdepth, longer EBRD and higher sum rate than UCAs; under fixed aperture UCAs show marginal gains, with new closed-form EBRD and beamdepth expressions for UCAs.