Name
Abstract | ||
|---|---|---|
A LNA, an RF front-end and a 6th-order complex BPF for reconfigurable low-IF receivers are demonstrated in this work. Due to the noise cancellation, the two-stage LNA presents a low NF of 2.8 to 3.3 dB from 0.8 to 6 GHz. Moreover, the LNA delivers two kinds of gain curves with IIP3 of -2.6 dBm by employing the capacitive degeneration and the resistive gain-curve shaping in the second stage. The flicker noise corner frequency of the down-converter has been considered and the measured f(C) of the RF front-end is 200 kHz. The RF front-end also provides two kinds of gain curves. For the low-frequency mode, the conversion gain is 28.8 similar to 31.1 dB from 800 MHz to 2.4 GHz. For the high-frequency mode, the conversion gain is 26.8 similar to 27.4 dB from 3 to 5 GHz. The complex BPF is realized with gm-C LPFs by shifting the low-pass frequency response. With variable transconductances and capacitors, a fixed ratio of the centre frequency to the bandwidth (similar to 2) is achieved by varying the bandwidth and the centre frequency of the LPF simultaneously. The complex BPF has a variable bandwidth from 200 kHz to 6.4 MHz while achieving an image rejection of 44 dB. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1587/transele.E96.C.251 | IEICE TRANSACTIONS ON ELECTRONICS |
Keywords | Field | DocType |
complex BPF, down-converter, image rejection, LNA, Low-IF, reconfigurable receiver | RF front end,Image response,Electronic engineering,Low IF receiver,Engineering,Digital down converter | Journal |
Volume | Issue | ISSN |
E96C | 2 | 1745-1353 |
Citations | PageRank | References |
0 | 0.34 | 6 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hsiao-Chin Chen | 1 | 50 | 14.74 |
| Shu-Wei Chang | 2 | 5 | 1.93 |
| Bo-Rong Tu | 3 | 0 | 0.34 |