| 摘要 |
A transmitting and receiving arrangement for operation in any selected one of plural frequency ranges includes at least one transmitting power amplifier and at least one low noise input amplifier allocated respectively to each frequency range. The arrangement includes plural chips, that each include at least one input amplifier and at least one transmitting amplifier incorporated therein, e.g. in an integrated circuit. The input amplifier and the transmitting amplifier allocated to a particular frequency range are located on different chips. The input amplifier and the transmitting amplifier incorporated in one chip are allocated to different frequency ranges. In a communication in a given frequency range, the transmission amplification is handled through one chip and the input amplification is handled through a different chip. The dissipated heat from the transmitting amplifier does not directly heat and deteriorate the performance of the input amplifier allocated to the active frequency.
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