Abstract: A system is provided for increasing the transconductance of a CMOS inverter. The system comprises a biasing circuit configured to provide a supply voltage to the CMOS inverter, wherein the biasing circuit comprises at least one transistor arrangement, wherein the transistor arrangement and the CMOS inverter are interconnected via back gates of respective transistors. The system further comprises a control circuit configured to provide a bias voltage to the interconnected back gates when the supply voltage reaches a threshold value, whereby both the biasing circuit and the control circuit together control the transconductance of the CMOS inverter.

Abstract: A low-noise amplifier, LNA, circuitry for amplifying an input signal to an output signal; the circuitry comprising a first cascode amplifier and a second complementary cascode amplifier, respectively connected to a first load and a second load; wherein the first load and the second load are coupled and wherein the output signal is an output of the first or second cascode amplifier; wherein the first cascode amplifier comprises a first initial amplification stage and a first transistor; wherein the second cascode amplifier comprises a second initial amplification stage, and a second transistor, arranged in a common-gate configuration, in cascode with the second initial amplification stage and connected to the second load; and wherein inputs of the first and second transistors are capacitively coupled such that the first and second transistors are connected at frequencies higher than a frequency characterising the capacitive coupling.

Abstract: In described examples, a method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.

Abstract: In described examples, a method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.

Abstract: A method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.

Abstract: A method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.