Renesas Design Austria Gmbh

Stefan Heibl

Andreas Schröck

Michael Pieber

Christian Röck

A transmitter configured to transmit a modulated transmitter data signal in an RF-Field over the air and configured to receive a modulated receiver data signal, which transmitter comprises a transmitter stage configured to generate the modulated transmitter data signal with a particular frequency and waveform based on a carrier signal and an antenna connected to the transmitter stage via a matching circuit of the transmitter and configured to transmit the modulated transmitter data signal in the RF-Field over the air a receiver stage connected via the matching circuit to the antenna and configured to receive the modulated receiver data signal, wherein the transmitter includes a measurement stage to measure an actual resonance frequency (f) of the antenna and its matching circuit connected to the transmitter stage and to the receiver stage.

Transmitter with a frequency measurement stage

A transmitter of an RFID communication system to transmit an amplitude modulated transmitter data signal in resonance in an RF-Field over the air and to receive a modulated receiver data signal, which transmitter comprises: a transmitter stage to generate the amplitude modulated transmitter data signal with a particular frequency and waveform based on a carrier signal generated by a carrier signal stage; an antenna connected to the transmitter stage via a matching circuit to transmit the amplitude modulated transmitter data signal in resonance in the RF-Field over the air; a receiver stage connected via the matching circuit to the antenna to receive the modulated receiver data signal; wherein the transmitter furthermore comprises a wave shape measurement stage to measure the shape of the received modulated receiver data signal with equivalent time sampling.

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Graz, Austria

Stefan Heibl