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Abstract
We present a two-way current combining power amplifier (PA) for 28GHz wireless communication. To boost the saturated output power (PSAT) and maintain a high power-added efficiency (PAE), a differential 3-stacked transistors structure is used for the unit PA cell. The stability factor and the PAE are improved with capacitive neutralization and shunt inductor intermediate node matching. Reliability issues under a 2.4V supply voltage are relieved with properly designed biasing and gate capacitances. The PA is implemented in a 22nm FD-SOI technology with a chip core area of 0.21 mm2, Measurement results show that the PA achieves a power gain of 27dB and a PSAT of 21.7dBm with a maximum PAE of 27.1% at 28GHz. The output 1dB compression point (P1aB) is 19.1 dBm. Measured PAE at P1dB and 6dB power back-off are 23% and 10.3%, respectively.
Original language | English |
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Title of host publication | 2020 IEEE Custom Integrated Circuits Conference (CICC) |
Pages | 1-4 |
Number of pages | 4 |
DOIs | |
Publication status | Published - Mar 2020 |
Event | 2020 IEEE Custom Integrated Circuits Conference (CICC) - , United States Duration: 22 Mar 2019 → 25 Mar 2020 |
Conference
Conference | 2020 IEEE Custom Integrated Circuits Conference (CICC) |
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Country/Territory | United States |
Period | 22/03/19 → 25/03/20 |
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