A radio frequency (RF) system is disclosed. The RF system includes an RF sensor, an analog to digital converter (ADC) module, a processing module, and a synchronization module. The RF sensor measures a parameter of an RF output and generates an RF signal based on the parameter. The ADC module converts samples of the RF signal into digital values. The processing module generates processed values based on the digital values. The synchronization module outputs one of the processed values in response to a transition in the RF output.

Synchronization of rf pulsing with rf metrology, processing, and control

The present invention relates to a radio frequency front-end device for separating a transmission signal and a reception signal, and relates to a radio frequency front-end device for separating the transmission signal and the reception signal, which maximizes communication quality by minimizing interference to a reception signal by a leaking signal, which is generated due to use of a directional coupler when the transmission signal and the reception signal are isolated, in a system using a time division duplex (TDD) scheme. To this end, disclosed is the radio frequency front-end device for separating the transmission signal and the reception signal comprising: a coupling means (100) for coupling the transmission signal and the reception signal which are input, through coupling paths, respectively, so as to separate the transmission signal and the reception signal and for coupling a signal leaking from the transmission signal in a path different from a coupling path; an adjusting means (200) for adjusting a signal coupled with the transmission signal to correspond to a leaking signal, thereby creating one or more offset signals; and a combining means (300) for combining one or more leaking signals with the one or more offset signals via at least one offset path, thereby offsetting the leaking signals.

Radio frequency front-end device for separating transmission signal and reception signal

PURPOSE: A cancellation apparatus for a transmission leakage signal is provided to configure a fixing delay unit in order to remove a transmission leakage signal of a wireless transmitter. CONSTITUTION: A first coupling unit(110) divides a transmission signal which is transmitted to an antenna that is outputted from a transmission unit. The first coupling unit transmits the divided signal to a reception end. A fixing delay unit(120) delays the phase of the divided signal that is divided through the first coupling unit. A coupler(130) converts the delayed signal into an IQ(In-phase/Quadrature-phase) signal. A first variable reduction unit(140) varies the amplitude of I/Q signal.

Cancellation apparatus for transmission leakage signal

PURPOSE: An RFID antenna system for offset an RF noise signal and a control method using the same are provided to remove unnecessary noise signal and increases a receiving performance of an RFID antenna. CONSTITUTION: A converting unit(120) converts a digital signal by sampling an inflow RF signal. A digital signal processing unit(130) calculates a digital signal of the converter and to detects frequency, phase, and assize of a noise signal. A synchronous circuit unit(140) generates an offset signal having the same frequency with a noise signal detected from the digital signal processing unit. A page shifting unit(150) set the size of the off signal generated from the synchronous circuit unit into the same size with the noise signal. The page shifting unit sets a phase of the offset signal as a contrary phase with the phase of a noise signal. A controlling unit(160) calculates a offset signal by outputted from the phase shift unit and a noise signal detected from the digital signal processing unit.

Rfid antenna system for offset rf noise signals and control method using the same

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Cancellation apparatus for transmission leakage signal

Rfid antenna system for offset rf noise signals and control method using the same