A radio frequency energy harvesting device 100 comprising: an antenna 120 including a first antenna end point 121, a second antenna end point, and at least one elongated conductive structure 123 connected to the first and second antenna end points and configured to resonate at RF frequencies within an associated bandwidth range such that a first RF signal V121 is generated on the first antenna end point, and a second RF signal V122 is generated on the second antenna end point, the second RF signal being 180° out-of-phase with the first RF signal; and a rectifying circuit 130 including: a first diode D1 coupled between the first antenna end point 121 and a first node N1; a first capacitor C1 coupled between the second antenna end point 122 and the first node N1; and a second diode D2 coupled between the first node N1 and a second node N2, wherein the first diode D1 has a lower forward voltage than the second diode, and the first diode has a lower peak inverse voltage than the second diode D2, whereby a first intermediate voltage VN1 generated at the first node comprises a sum of positive voltage pulses of the first RF signal V121 that are passed through the first diode and the second AC signal passed through the first capacitor C1, and whereby a second intermediate voltage VN2 is generated at the second node N2 in accordance with positive voltage pulses that are passed from the first node N1 through the second diode D2, wherein the rectifying circuit 130 further comprises one or more inductors L1, L2 coupled to the antenna. an antenna 120 including a first antenna end point 121, a second antenna end point, and at least one elongated conductive structure 123 connected to the first and second antenna end points and configured to resonate at RF frequencies within an associated bandwidth range such that a first RF signal V121 is generated on the first antenna end point, and a second RF signal V122 is generated on the second antenna end point, the second RF signal being 180° out-of-phase with the first RF signal; and a rectifying circuit 130 including: a first diode D1 coupled between the first antenna end point 121 and a first node N1; a first capacitor C1 coupled between the second antenna end point 122 and the first node N1; and a second diode D2 coupled between the first node N1 and a second node N2, a first diode D1 coupled between the first antenna end point 121 and a first node N1; a first capacitor C1 coupled between the second antenna end point 122 and the first node N1; and a second diode D2 coupled between the first node N1 and a second node N2, wherein the first diode D1 has a lower forward voltage than the second diode, and the first diode has a lower peak inverse voltage than the second diode D2, whereby a first intermediate voltage VN1 generated at the first node comprises a sum of positive voltage pulses of the first RF signal V121 that are passed through the first diode and the second AC signal passed through the first capacitor C1, and whereby a second intermediate voltage VN2 is generated at the second node N2 in accordance with positive voltage pulses that are passed from the first node N1 through the second diode D2, wherein the rectifying circuit 130 further comprises one or more inductors L1, L2 coupled to the antenna.