A Proposed Method To Correct The Delay Causing By The Path Transmission Chain With Coupled Oscillators In To Network Antenna

摘要

This paper presents an original solution to correct the delay causing by the transmission path delay. This can be corrected through a phase shift provided by coupling Voltage Controlled Oscillators (VCOs). Indeed, the phase constant phase progression in the oscillator array can be obtained by detuning the free-running frequencies of the two outermost oscillators in the array in opposite directions. This technique is applied to compare the Error Vector Modulator (EVM) with the Quadrature Phase Shift Keying (QPSK) and 16-Quadrature Amplitude Modulation (16-QAM). An example with a carrier of 6 GHz and for flow rate equal to 2GHz, shows a correction of the receiving signal lower than 15%.