Agency for Science, Technology and Research

Cyrips Pte Ltd.

Jia Jun Zheng

Sheng Jau Wong

Aruna B Ajjikuttira

Pradeep Basappa Khannur

An RFID transceiver () includes a common frequency source (), a receiving channel () and a transmitting channel (). The common frequency source () is configured to provide a predefined intermediate frequency signal f, and a predefined carrier frequency signal f. The RFID receiving channel () includes an upconverting mixer () having a first input coupled to receive the predefined intermediate frequency signal f, a second input coupled to receive the predefined carrier frequency signal f, and an output, the upconverting mixer () operable to produce an upconverted signal at a frequency defined by f&#xb1;f. The RFID receiving channel () further includes 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, a second input coupled to receive the upconverted signal, and an output, the image rejection downconverting mixer () operable to produce an output a downconverted signal at substantially the predefined intermediate frequency f. The RFID transmitting channel () includes a modulator () operable to modulate modulation data onto the predefined carrier frequency signal f.

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Singapore, Singapore

Jia Jun Zheng