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To meet the demands of ever-increasing data throughput, carrier aggregation (CA) across frequency bands is becoming necessary. Different regional spectrum allocations lead to a large number of band combinations and challenge the antenna interface performance for inter-band CA. A dedicated antenna for each carrier severely increases the form factor of the device. Splitting the antenna signal with filter...
A field-programmable noise-canceling wide-band receiver front end with high performance LNTAs is presented. The common-source (CS) and common-gate (CG) LNTAs are split into several cells whose bias point can be individually programmed in class AB or C yielding a highly linear hybrid class-AB-C LNTA. The 40nm LP CMOS receiver prototype can be programmed on the fly to adapt to different RF environments;...
A low noise amplifier is presented that uniquely achieves wide-band input matching and good low-frequency noise performance at the same time. Its topology is a hybrid of distributed amplifier and a common-source common-gate noise-canceling amplifier. The proof-of-principle prototype in 65nm CMOS operates from DC up to 9.5GHz with more than 12dB gain, achieves a minimum noise figure of 2.8dB, P1dB...
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