Patent ID: 7979034

Claim:
A radio frequency identification (RFID) transceiver, comprising: a common frequency source configured to provide (i) a predefined intermediate frequency signal f IF , and (ii) a predefined carrier frequency signal f C ; an RFID receiving channel, comprising: a single sideband upconverting mixer having a first input coupled to receive the predefined intermediate frequency signal f IF , a second input coupled to receive the predefined carrier frequency signal f C , and an output, the single sideband upconverting mixer operable to produce an upconverted signal at a frequency defined by f c ±f IF ; an image rejection downconverting mixer having a first input coupled to receive an RFID signal having a carrier frequency substantially at the predefined carrier frequency f C , a second input coupled to receive the upconverted signal, and an output, the image rejection mixer operable to produce a downconverted signal at substantially the predefined intermediate frequency f IF ; and an RFID transmitting channel comprising a modulator operable to modulate modulation data onto the predefined carrier frequency signal f C .