An automobile radar module, comprising: a housing; a printed circuit board mounted in the housing, the PCB having a first side on which radio frequency electronic components are mounted and a second side on which digital electronic components are mounted; an electromagnetic interference shield mounted over the first side of the PCB; and a radome mounted over the EMI shield; wherein: the EMI shield comprises at least one aperture (124a, 124b) through a primary surface of the EMI shield, the at least one aperture (124a, 124b) exposing at least a portion (120a, 120b) of the RF components on the first side of the PCB; characterized in that the radome comprises at least one protrusion (130a, 130b) which protrudes into the at least one aperture (124a, 124b) in the EMI shield; the at least one protrusion (130a, 130b) on the radome and sidewalls (126a, 126b) of the at least one aperture (124a, 124b) on the EMI shield define a shielded region above the portion (120a, 120b) of the RF components on the first side of the PCB; and the sidewalls (126a, 126b) of the at least one aperture (124a, 124b) extend at an acute angle (θ) with respect to a plane of the primary surface of the EMI shield, the acute angle (θ) being selected based on operational parameters of the radar module such that a desired shielding performance is realized. a housing; a printed circuit board mounted in the housing, the PCB having a first side on which radio frequency electronic components are mounted and a second side on which digital electronic components are mounted; an electromagnetic interference shield mounted over the first side of the PCB; and a radome mounted over the EMI shield; wherein: the EMI shield comprises at least one aperture (124a, 124b) through a primary surface of the EMI shield, the at least one aperture (124a, 124b) exposing at least a portion (120a, 120b) of the RF components on the first side of the PCB; characterized in that the radome comprises at least one protrusion (130a, 130b) which protrudes into the at least one aperture (124a, 124b) in the EMI shield; the at least one protrusion (130a, 130b) on the radome and sidewalls (126a, 126b) of the at least one aperture (124a, 124b) on the EMI shield define a shielded region above the portion (120a, 120b) of the RF components on the first side of the PCB; and the sidewalls (126a, 126b) of the at least one aperture (124a, 124b) extend at an acute angle (θ) with respect to a plane of the primary surface of the EMI shield, the acute angle (θ) being selected based on operational parameters of the radar module such that a desired shielding performance is realized. the EMI shield comprises at least one aperture (124a, 124b) through a primary surface of the EMI shield, the at least one aperture (124a, 124b) exposing at least a portion (120a, 120b) of the RF components on the first side of the PCB; characterized in that the radome comprises at least one protrusion (130a, 130b) which protrudes into the at least one aperture (124a, 124b) in the EMI shield; the at least one protrusion (130a, 130b) on the radome and sidewalls (126a, 126b) of the at least one aperture (124a, 124b) on the EMI shield define a shielded region above the portion (120a, 120b) of the RF components on the first side of the PCB; and the sidewalls (126a, 126b) of the at least one aperture (124a, 124b) extend at an acute angle (θ) with respect to a plane of the primary surface of the EMI shield, the acute angle (θ) being selected based on operational parameters of the radar module such that a desired shielding performance is realized.