An RFID system comprising: a product module assembly of a processing system, wherein the product module assembly comprises a plurality of slot assemblies (260,262,264,266) which are each configured to releasably engage at least one product container (252,254,256,258); a plurality of RFID antenna assemblies (452,462,464,466) positioned on the product module assembly; a first RFID tag assembly positioned on the at least one product container, wherein the at least one product container is configured to position the first RFID tag assembly within a detection zone of corresponding RFID antenna assembly whenever the product module assembly releasably engages the at least one product container; and each RFID antenna assembly (452,462,464,466) comprising: an inductive component including a loop antenna assembly (508,652); at least one capacitive component (500,506,654,680,682,684,686,688,690,692) coupled to the inductive component; and at least one resistive component (510,662) coupled to the inductive component; characterised by a plurality of second RFID tag assemblies (458,468,470,472) positioned on a bracket assembly, the bracket assembly configured to releasably engage the product module assembly and position the second RFID tag assembly (458,468,470,472) within a detection zone of a respective RFID antenna assembly whenever the bracket assembly releasably engages the product module assembly, and wherein the circumference of the loop antenna assembly is no more than 25% of the wavelength of the carrier signal and the inductive component is positioned above a respective slot assembly to detect the presence of an RFID tag assembly within the respective slot assembly and not detect the presence of an RFID tag assembly within a second slot assembly that is adjacent to the respective slot assembly. a product module assembly of a processing system, wherein the product module assembly comprises a plurality of slot assemblies (260,262,264,266) which are each configured to releasably engage at least one product container (252,254,256,258); a plurality of RFID antenna assemblies (452,462,464,466) positioned on the product module assembly; a first RFID tag assembly positioned on the at least one product container, wherein the at least one product container is configured to position the first RFID tag assembly within a detection zone of corresponding RFID antenna assembly whenever the product module assembly releasably engages the at least one product container; and each RFID antenna assembly (452,462,464,466) comprising: an inductive component including a loop antenna assembly (508,652); at least one capacitive component (500,506,654,680,682,684,686,688,690,692) coupled to the inductive component; and at least one resistive component (510,662) coupled to the inductive component; characterised by a plurality of second RFID tag assemblies (458,468,470,472) positioned on a bracket assembly, the bracket assembly configured to releasably engage the product module assembly and position the second RFID tag assembly (458,468,470,472) within a detection zone of a respective RFID antenna assembly whenever the bracket assembly releasably engages the product module assembly, and wherein the circumference of the loop antenna assembly is no more than 25% of the wavelength of the carrier signal and the inductive component is positioned above a respective slot assembly to detect the presence of an RFID tag assembly within the respective slot assembly and not detect the presence of an RFID tag assembly within a second slot assembly that is adjacent to the respective slot assembly.