| 摘要 |
The present invention relates to transceiver systems and methods which employ shunt switches (50, 56) during transmit and receive operating modes. The shunt switches (50, 56) may be configured with various reactive networks (48, 52, 54, 58, 60) to achieve high or low impedance states at power amplifiers (42) or low noise amplifiers (46) in order to reflect or transmit power along a given path. The shunt switches (50, 56) are designed for protection against excessive voltage swings that would otherwise damage components in the transceiver switching circuit (40). The switching circuits (50, 56) may be implemented in a single chip architecture, which results in manufacturing efficiencies, lower cost and higher reliability circuits. Single (40) or multi band devices (401) may also be employed. ® KIPO & WIPO 2009
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