Abstract: A method for adapting a supply voltage of a device includes configuring a change in an operational state of the device; measuring a temperature of the device; and determining a supply voltage level for the device to operate in the configured operational state. The method includes adapting a supply voltage of the device in dependence on at least the measured temperature and the supply voltage level for the device to operate in the configured operational state.

Abstract: There is provided, a method for clock recovery in a RFID tag, the method includes receiving a RF field from a RFID reader. A field clock is generated from the received RF field, from which a clock recovery signal is generated. The RF field is modulated to produce a RF modulation. Generation of the clock recovery signal is paused while the RF field is being modulated. A modulation envelope signal is generated and used for load modulation. Generation of the clock recovery signal at the end of the RF modulation is resumed after a delay of one clock cycle from a falling edge of the modulation envelope signal. In another embodiment of the method, instead of adding the delay, a differential amplifier is used to increase RF field detection sensitivity. The method and the RFID tag ensures synchronized resumption of a PLL clock and the clock recovery signal.

Abstract: There is provided, a method for clock recovery in a RFID tag, the method includes receiving a RF field from a RFID reader. A field clock is generated from the received RF field, from which a clock recovery signal is generated. The RF field is modulated to produce a RF modulation. Generation of the clock recovery signal is paused while the RF field is being modulated. A modulation envelope signal is generated and used for load modulation. Generation of the clock recovery signal at the end of the RF modulation is resumed after a delay of one clock cycle from a falling edge of the modulation envelope signal. In another embodiment of the method, instead of adding the delay, a differential amplifier is used to increase RF field detection sensitivity. The method and the RFID tag ensures synchronized resumption of a PLL clock and the clock recovery signal.

Abstract: In accordance with a first aspect of the present disclosure, a transponder is provided, comprising: a field strength range determination unit configured to determine a field strength range of a radio frequency (RF) field generated by an external reader device; a controller configured to delay processing of a command by the transponder in dependence on the field strength range determined by the field strength range determination unit. In accordance with further aspects of the present disclosure, a corresponding method of operating a transponder is conceived, and a corresponding computer program is provided.

Abstract: In accordance with a first aspect of the present disclosure, a transponder is provided, comprising: a frequency detector configured to monitor an output frequency of a clock-stop sensor of said transponder, wherein said frequency detector is further configured to determine if said output frequency falls within a response detection frequency range of an external reader, and a frequency shifter configured to shift, in response to the frequency detector determining that the output frequency falls within said response detection frequency range, said output frequency to a value outside said response detection frequency range. In accordance with a second aspect of the present disclosure, a corresponding method of operating a transponder is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.

Abstract: In accordance with a first aspect of the present disclosure, a transponder is provided, comprising: digital logic for processing one or more portions of a data frame; a status detection unit configured to detect a status of a data frame reception or data frame transmission; a clock gating unit configured to apply clock gating to said digital logic in dependence on the status of said data frame reception or data frame transmission. In accordance with further aspects of the present disclosure, a corresponding method of operating a transponder is conceived, and a corresponding computer program is provided.

Abstract: In accordance with a first aspect of the present disclosure, a transponder is provided, comprising: a field strength range determination unit configured to determine a field strength range of a radio frequency (RF) field generated by an external reader device; a controller configured to delay processing of a command by the transponder in dependence on the field strength range determined by the field strength range determination unit. In accordance with further aspects of the present disclosure, a corresponding method of operating a transponder is conceived, and a corresponding computer program is provided.

Abstract: In accordance with a first aspect of the present disclosure, a transponder is provided, comprising: digital logic for processing one or more portions of a data frame; a status detection unit configured to detect a status of a data frame reception or data frame transmission; a clock gating unit configured to apply clock gating to said digital logic in dependence on the status of said data frame reception or data frame transmission. In accordance with further aspects of the present disclosure, a corresponding method of operating a transponder is conceived, and a corresponding computer program is provided.

Abstract: In accordance with a first aspect of the present disclosure, a transponder is provided, comprising: a frequency detector configured to monitor an output frequency of a clock-stop sensor of said transponder, wherein said frequency detector is further configured to determine if said output frequency falls within a response detection frequency range of an external reader, and a frequency shifter configured to shift, in response to the frequency detector determining that the output frequency falls within said response detection frequency range, said output frequency to a value outside said response detection frequency range. In accordance with a second aspect of the present disclosure, a corresponding method of operating a transponder is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.

Abstract: A microwave frequency device includes: a first substrate having a dielectric layer and a conductive film disposed on opposing first and second sides of the dielectric layer, the conductive film on the first side of the dielectric layer of the first substrate including at least one signal line; and a second substrate having a dielectric layer, conductive film disposed on at least one of first and second opposing sides of the dielectric layer, and at least one cut-out where the dielectric layer and conductive film have been removed, wherein the first and second substrates are bonded together to form a bonded assembly such that (i) a portion of the signal line of the first substrate is sandwiched between the dielectric layers of the first and second substrates, and (ii) the at least one cut-out exposes a portion of the signal line, thereby forming a microstrip portion. A method of forming same is also disclosed.

Abstract: A microwave frequency device includes: a first substrate having a dielectric layer and a conductive film disposed on opposing first and second sides of the dielectric layer, the conductive film on the first side of the dielectric layer of the first substrate including at least one signal line; and a second substrate having a dielectric layer, conductive film disposed on at least one of first and second opposing sides of the dielectric layer, and at least one cut-out where the dielectric layer and conductive film have been removed, wherein the first and second substrates are bonded together to form a bonded assembly such that (i) a portion of the signal line of the first substrate is sandwiched between the dielectric layers of the first and second substrates, and (ii) the at least one cut-out exposes a portion of the signal line, thereby forming a microstrip portion. A method of forming same is also disclosed.