US 11,855,589 B2
Low-noise amplifier supporting beam-forming function and receiver including the same
Young-min Kim, Suwon-si (KR); Jae-seung Lee, Hwaseong-si (KR); Jung-seok Lim, Seoul (KR); and Pil-sung Jang, Uijeongbu-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 28, 2020, as Appl. No. 16/914,391.
Application 16/914,391 is a continuation of application No. 16/156,130, filed on Oct. 10, 2018, granted, now 10,715,091.
Claims priority of application No. 10-2017-0133483 (KR), filed on Oct. 13, 2017; and application No. 10-2018-0048473 (KR), filed on Apr. 26, 2018.
Prior Publication US 2020/0336121 A1, Oct. 22, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H03F 1/22 (2006.01); H03F 3/189 (2006.01); H03F 3/72 (2006.01); H03H 7/19 (2006.01); H03F 3/193 (2006.01)
CPC H03F 3/189 (2013.01) [H03F 1/22 (2013.01); H03F 1/223 (2013.01); H03F 3/193 (2013.01); H03F 3/72 (2013.01); H03H 7/19 (2013.01); H03F 2200/294 (2013.01); H03F 2200/61 (2013.01); H03F 2203/7206 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A receiver for receiving a beam-forming signal via a plurality of antennas, the receiver including:
a first amplifier circuit including a first transistor for amplifying an input signal to provide a first amplified signal, the input signal being derived from a portion of the beam-forming signal received by one of the antennas;
a second amplifier circuit including a second transistor for amplifying the first amplified signal to generate a corresponding output signal; and
a variable capacitance circuit for selectively changing capacitance thereof to cause a corresponding phase change in the output signal and form a beam pointing in a selectable direction according to the capacitance, for receiving the beam-forming signal,
wherein the variable capacitance circuit receives a capacitance control signal to change the capacitance.