Abstract
A new SPDR design approach is proposed. The receiver contains an RF discriminator, power detectors, a signal level comparison circuit, a decoder, and data and carrier recovery circuits for BPSK and QPSK signals. The new receiver operates solely on analog circuits, and the proposed design is validated with circuit and system simulations of an RF discriminator and a Costas-type phase-locked loop, demonstration of a demodulator at 2.4 GHz, and MMIC fabrication of an RF discriminator at 15 GHz. The new design approach offers interesting possibilities to achieve SPDR-on-a-chip. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 25: 356–360, 2000.
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