US 11,967,983 B2
Ultra wideband transmitter
Yi Zeng, San Jose, CA (US); Cheng-Han Wang, San Jose, CA (US); Emanuele Lopelli, Laguna Niguel, CA (US); Chan Hong Park, San Jose, CA (US); Liang Zhao, Saratoga, CA (US); Le Nguyen Luong, San Diego, CA (US); and Koorosh Akhavan, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 22, 2022, as Appl. No. 17/934,513.
Prior Publication US 2024/0106496 A1, Mar. 28, 2024
Int. Cl. H04B 1/717 (2011.01); H03F 3/24 (2006.01)
CPC H04B 1/7174 (2013.01) [H03F 3/245 (2013.01); H03F 2200/09 (2013.01); H03F 2200/451 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An ultra wideband (UWB) communication apparatus, comprising:
pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, wherein each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time;
a plurality of power amplifier (PA) cells, each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, wherein the associated gates of each PA cell are selectable to configure the PA cell between an on state and an off state; and
logic circuitry coupled between the pulse generation circuitry and the plurality of PA cells, the logic circuitry configured to set the on state or the off state for each PA cell of the plurality of PA cells during the corresponding sample time for the value, and wherein the pulse amplitude at the corresponding sample time is associated with a number of the plurality of PA cells in the on state at the corresponding sample time as set by the value.