发明申请
US20100248670A1 DIRECT CONVERSION RF TRANSCEIVER FOR WIRELESS COMMUNICATION 有权
直接转换射频收发器进行无线通信

DIRECT CONVERSION RF TRANSCEIVER FOR WIRELESS COMMUNICATION
摘要:
A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down converted to base band frequencies and base band signals to be up converted to wideband RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry includes a low noise amplifier, automatic frequency control circuitry for aligning the LO frequency with the frequency of the received RF signals, signal power measuring circuitry for measuring the signal to signal and power ratio and for adjusting frontal and rear amplification stages accordingly, and finally, filtering circuitry to filter high and low frequency interfering signals including DC offset.
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