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A Reconfigurable Spectrum-Compressing Receiver for Non-Contiguous Carrier Aggreg
提出一种可重构频谱压缩接收器，用于非连续载波聚合，支持快速信道切换。
100 MHz–1.4 GHz, 49 dB out-of-band rejection, −86 dBm sensitivity, 0.55 mm², 23.1 mW
非连续载波聚合频谱压缩快速信道切换N-path接收器灵敏度
▸创新点1：多频段并发混频至相邻中频信道（方法创新）。该技术通过同时将多个射频频段混频到相邻的中频信道，实现了非连续载波聚合信号的接收，显著提高了频谱利用率和接收效率。
▸创新点2：无需本地振荡器调谐的信道选择（电路创新）。通过取消本地振荡器的调谐需求，该接收器能够在25纳秒内快速切换信道，极大地提高了信道选择的灵活性和响应速度。
▸创新点3：N-path接收器中最低的灵敏度（系统创新）。该接收器在N-path架构中实现了-86 dBm的灵敏度，这是目前N-path接收器中的最低测量值，显著提升了接收器的信号检测能力。
▸创新点4：高动态范围和低误差矢量幅度（性能创新）。该接收器在QPSK调制下实现了超过86 dB的动态范围，且误差矢量幅度（EVM）低于-20 dB，确保了高质量的信号接收和处理。
Abstract
This article demonstrates a signal processing
technique for receiving non-contiguous RF channels by con-
currently mixing several RF bands to adjacent IF channels.
Consequently, channel selection does not require local oscillator
tuning and the proposed receiver (RX) can switch channels in
less than 25 ns. The RX chip operates over a frequency range
of 100 MHz–1.4 GHz and demonstrates an out-of-band rejection
of 49 dB and a measured RX sensitivity of −86 dBm, which is the
lowest measured for N-p