A 28-GHz CMOS Linear Power Amplifier With Low Output Phase Variation Over Dual Power Modes

Cited 5 time in webofscience Cited 0 time in scopus
  • Hit : 203
  • Download : 0
This letter presents a 28-GHz CMOS linear power amplifier (PA) for 5G beamforming front-end that has dual power modes. The proposed PA consists of parallelly connected cascode cells, which are used to linearize the PA in the high-power mode (HPM). Power modes are implemented by splitting the cascode cells again. To have a low-power mode (LPM), half of the cells are turned off while halving the supply voltage simultaneously. This concurrent change makes it possible to keep the phase of the PA unchanged over two power modes while the dc power consumption is reduced by about half in the LPM. In addition, the good linearity is maintained in the LPM. The PA has gains of 18/14 dB, saturated output powers of 18.5/12.2 dBm, P1dBs of 16.5/10.2 dBm, and peak PAEs of 27.3%/17.8% with a 28-GHz continuous wave (CW) signal. The maximum linear output powers that satisfy EVM < -25 dB are 7.5/1.5 dBm with an 8-CC x 100-MHz 64-QAM OFDM signal.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2019-08
Language
English
Article Type
Article
Citation

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.29, no.8, pp.551 - 553

ISSN
1531-1309
DOI
10.1109/LMWC.2019.2922507
URI
http://hdl.handle.net/10203/266059
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 5 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0