| 摘要 |
A receiver includes LNA (14)-mixer (12) arrangement, a current buffer (8, 10) arrangement and an analog filter (4,6) arrangement. The LNA (14)-mixer (12) arrangement receives a plurality of input signals and provides a wide-band input match for a specified frequency range of operation. The LNA (14)-mixer (12) arrangement includes a plurality of LNA structures and a plurality of mixer structures where each of the LNA structure path is coupled to a single mixer structure. The LNA (14)-mixer (12) arrangement outputs a first signal. The current buffer (8,10) arrangement receives the first signal and reduces the Image Rejection (IR) asymmetry between the high frequency portion and the low frequency portion of the first signal as well as provides a gain to the first signal. The current buffer (8, 10) arrangement outputs a second signal. The analog filter (4,6) arrangement receives the second signals and perform filtering and calibration. |
