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Can I read CMOS Channel-Selection LNA With a Feedforward N -Path Filter and Calibrated Blocker Cancellation Path for FEM-Less Cellular Transceivers on EtoBox?
CMOS Channel-Selection LNA With a Feedforward N -Path Filter and Calibrated Blocker Cancellation Path for FEM-Less Cellular Transceivers by Donggu Lee; Kuduck Kwon is a Engineering article available to read on EtoBox.
What is CMOS Channel-Selection LNA With a Feedforward N -Path Filter and Calibrated Blocker Cancellation Path for FEM-Less Cellular Transceivers about?
In this article, a CMOS tunable channel-selection (CH-SEL) low-noise amplifier (LNA) with a feedforward (FF) N-path filter and a gain-and phase-calibrated interferencecancellation technique is proposed for advanced front-end module (FEM)-less cellular transceivers. The proposed LNA exhibits a high-Q RF bandpass/band-rejection filter characteristic based on a four-path filter, an active blocker cancellation with an FF translational loop, and an LC tank at the input, internal node, and output, respectively. The proposed gain-and phase-calibration block and tunable high-pass filter in the FF filtering path adjust the notch frequency corresponding to the transmitter leakage signal and help realize sharp notch filtering. The proposed CH-SEL LNA with CMOS duplexers compensates for the limited filtering performance of the CMOS duplexer and improves the blocker-tolerance and linearity of the receiver, and thus, can replace surface acoustic wave duplexers in the FEM. Fabricated in the 65-nm CMOS process, the CH-SEL LNA achieves a maximum voltage gain of 19.3 dB, minimum NF of 5.1 dB, and notch rejection ratio of more than 27.8 dB. It can also cover midband frequencies in the range of 1.35-2
Who reads CMOS Channel-Selection LNA With a Feedforward N -Path Filter and Calibrated Blocker Cancellation Path for FEM-Less Cellular Transceivers?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Donggu Lee; Kuduck Kwon
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)