MARS's MA-WC910-RHCP9b 860 – 960 MHz circular polarization, RFID reader antenna, 9 dBi. The RFID antenna from Mars is an innovative antenna that adds flexibility to the RFID system. This antenna covers the standard 902 – 928 MHz RFID frequency, as well as a wide frequency band of 860 – 960 MHz with a RHCP circular polarization, low VSWR, and axial ratio. It includes MNT-23.