This paper describes the architecture, system analysis and implementation of world-wide regulation compliant UHF RFID reader transceiver for ISO 18000-6 multi-class tags in the ISM band 860 MHz-960 MHz. The presented considerations are based on a system analysis providing evaluation of the transceiver's building blocks parameters in accordance with the required characteristics of a complete RFID reader system, read range, data transmission rate, reading speed and power consumption. The Phase Noise, Noise Figure, Sensitivity, P1dB, Dynamic Range are estimated for the design of a custom 'system-in-package' transceiver, implemented in LTCC-module. Based on the direct-conversion architecture, the reader transceiver integrates RFblocks, frequency synthesizer, modulation and demodulation functions, low frequency analog baseband. The receiver sensitivity is down to -85 dBm, the transmitter produces output power of +17 dBm.

Design and testing results of a single power supply wide-band low noise amplifier (LNA) based on low cost 0.5 ?m D-mode pHEMT process are presented. It is shown that the designed cascode LNA has operating frequency range up to 3.5 GHz, power gain above 15 dB, noise figure below 2.2 dB, output linearity above 17 dBm and power consumption less than 325 mW. Potential immunity of the LNA to total ionizing dose and destructive single event effects exceed 300 krad and 60 MeV?cm2/mg respectively.

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