A system comprising: a radome ; and a frequency modulated continuous wave, FMCW, radar array comprising: a housing ; a transmit array comprising a plurality of transmit antenna elements configured to output an FMCW transmit beam , wherein the transmit array is mechanically coupled to the housing ; a receive array comprising a plurality of receive antenna elements , wherein the receive array is mechanically coupled to the housing ; and a slotted choke disposed between the transmit array and the receive array , wherein the slotted choke comprises a plurality of slots having dimensions selected to provide cancelation of electromagnetic radiation from the FMCW transmit beam to reduce a magnitude of radiation from the transmit array to which the receive array is indirectly exposed, and wherein the slotted choke extends through the plane defined by the outer surfaces of the transmit array and the receive array so that no gap exists between the outer surface of the transmit array and the slotted choke and between the outer surface of the receive array and the slotted choke and wherein the slotted choke extends from between the transmit array and the receive array to an inner surface of the radome . a radome ; and a frequency modulated continuous wave, FMCW, radar array comprising: a housing ; a transmit array comprising a plurality of transmit antenna elements configured to output an FMCW transmit beam , wherein the transmit array is mechanically coupled to the housing ; a receive array comprising a plurality of receive antenna elements , wherein the receive array is mechanically coupled to the housing ; and a slotted choke disposed between the transmit array and the receive array , wherein the slotted choke comprises a plurality of slots having dimensions selected to provide cancelation of electromagnetic radiation from the FMCW transmit beam to reduce a magnitude of radiation from the transmit array to which the receive array is indirectly exposed, and wherein the slotted choke extends through the plane defined by the outer surfaces of the transmit array and the receive array so that no gap exists between the outer surface of the transmit array and the slotted choke and between the outer surface of the receive array and the slotted choke and wherein the slotted choke extends from between the transmit array and the receive array to an inner surface of the radome . a housing ; a transmit array comprising a plurality of transmit antenna elements configured to output an FMCW transmit beam , wherein the transmit array is mechanically coupled to the housing ; a receive array comprising a plurality of receive antenna elements , wherein the receive array is mechanically coupled to the housing ; and a slotted choke disposed between the transmit array and the receive array , wherein the slotted choke comprises a plurality of slots having dimensions selected to provide cancelation of electromagnetic radiation from the FMCW transmit beam to reduce a magnitude of radiation from the transmit array to which the receive array is indirectly exposed, and wherein the slotted choke extends through the plane defined by the outer surfaces of the transmit array and the receive array so that no gap exists between the outer surface of the transmit array and the slotted choke and between the outer surface of the receive array and the slotted choke and wherein the slotted choke extends from between the transmit array and the receive array to an inner surface of the radome . <EOS>