A 2-GHz radio frequency transceiver is presented and implemented for third generation mobile communications using wide-band code division multiple access (WCDMA) scheme. Performance measuring systems are introduced for transmitter channel and receiver sensitivity, respectively. The transceiver achieves maximum output power of 22 dBm, dynamic range of 85 dB, adjacent channel power rejection ratio (ACPR) of -41dB@5MHz, and receiver sensitivity of -119.6 dBm for 128-kb/s data at 3.84-Mcps spreading rate. The measured results indicate the conformity to the required commercial 2.0-GHz WCDMA specification and 3GPP requir ements.
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