| 摘要 |
<p>Disclosed is a multi-band transceiver for a wireless digital communications system, comprising a broadband orthogonal direct modem, a broadband variable gain amplifier, a power amplifier, and a low noise amplifier. The multi-band transceiver further comprises a frequency-band selection filter set and a frequency-band selection combiner, the frequency-band selection filter set being formed by a first double-pole multi-throw (DPMT) switch, a second DPMT switch, and a first filter set, and is connected between the broadband orthogonal direct modem and the broadband variable gain amplifier; the frequency-band selection combiner is formed by a third DPMT switch and a second filter set, and is connected between the power amplifier and the low noise amplifier. The present technical solution reduces costs and device size, and improves signal transmission performance.</p> |
