Patent ID: 6104759
Filing Date: 2000-08-15
Classification: H04B

Abstract:
An RF data transmission system, comprising:an RF transmitter that transmits digitally modulated data, the transmitter having a low duty cycle with an active transmission time interval T.sub.1 and a quiescent time interval T.sub.2, where T.sub.2 is substantially larger than T.sub.1 ;a limited energy source; anda low ESR, high capacitance capacitive device electrically coupled to said limited energy source and said transmitter, said capacitive device being operable to store energy provided by said limited energy source, said capacitive device also being operable to supply energy to said transmitter, said capacitive device having sufficient energy storage capacity to power said transmitter during said time interval T.sub.1, said capacitance device having a sufficiently low ESR to allow said capacitance device to meet substantially all of the power demands of said transmitter when the ESR of said limited energy source is too high to allow said limited energy source to meet the load demands of said transmitter.