A 0.25-to-2.25 GHz, 27 dBm IIP3, 16-Path Tunable Bandpass Filter

作者：Luo Cheng kai^*; Buckwalter James F

来源：IEEE Microwave and Wireless Components Letters, 2014, 24(12): 866-868.

DOI：10.1109/LMWC.2014.2352972

• Bandpass filter (BPF)
• CMOS
• high linearity
• N-path filter
• tunable filter

A fully-differential, 16-path bandpass filter (BPF) is demonstrated with wide tuning range, high linearity for and wide-band harmonic rejection. The reconfigurable filter and clock generation circuitry is fabricated in IBM 45 nm CMOS SOI. To cover a tuning range of one decade (250 MHz to 2250 MHz), a 16-path scheme eliminates harmonic aliasing component to 15th harmonic of the local oscillator. The BPF has a 3 dB bandwidth greater than 20 MHz and 0.9 dB insertion loss. The BPF also achieves high linearity with an out-of-band and IIP3 > 27 dBm and P1dB > 3dBm. The BPF tolerates blockers to 9 dBm 1 dB desensitization point (B1dB).

• 出版日期2014-12