Inter-chip and intra-chip pulsed signal transfer between transmitting and receiving loops in wireless interconnect configurations

The pulsed signal transfer between transmitting and receiving loops employed for inter-chip and intra-chip wireless interconnects in integrated circuit devices is investigated. A computational model, based on the electromagnetic reciprocity theorem of the time-convolution type, is developed. The transmitter loop excitation is modeled as a causal, unipolar pulse characterized by its pulse amplitude, its pulse rise time and its pulse time width. Analytic expressions are provided for the generator voltage in the equivalent Thévenin circuit describing the performance of the receiver loop in its dependence on its location relative to the transmitter loop. Due to the intricate radiation behavior of the coupling magnetic field, the received signal is in an intricate manner related to the signal to be transferred. Numerical examples illustrate the complexity of the phenomena involved.