Title:
MULTI-BAND LOW-NOISE AMPLIFIER AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/055761
Kind Code:
A1
Abstract:
A multi-band low-noise amplifier (100), which is provided with a plurality of switch handover units (S1-Sn), which are respectively connected to a plurality of signal input ends (RFin1-RFinn) in a manner of corresponding to each other on a one-to-one basis, wherein each of the switch handover units (S1-Sn) comprises a first switch (SA1) and a second switch (SA2), the first switch (SA1) and the second switch (SA2) are respectively connected to a bypass matching network (11) and a common-source amplification unit. Therefore, by means of controlling the turning-on and turning-off of the first switch (SA1) and the second switch (SA2), a signal can be output from the bypass matching network (11) or can be output after being amplified by the common-source amplification unit; moreover, by means of providing the plurality of signal input ends (RFin1-RFinn), signals at a plurality of different bands can be input, and by means of the plurality of switch handover units (S1-Sn), the handover among different signal input ends (RFin1-RFinn) can be realized. The multi-band low-noise amplifier has the beneficial effects of being able to realize a multi-input multi-band function, and the plurality of signal input ends (RFin1-RFinn) share one common-source amplification unit, such that an occupied area can be greatly reduced, which facilitates the miniaturization of a chip.
Inventors:
SU JUNHUA (CN)
GUO JIASHUAI (CN)
GUO JIASHUAI (CN)
Application Number:
PCT/CN2023/109902
Publication Date:
March 21, 2024
Filing Date:
July 28, 2023
Export Citation:
Assignee:
LANSUS TECH INC (CN)
International Classes:
H03F1/56; H04B1/16
Foreign References:
| CN115208338A | 2022-10-18 | |||
| CN115441839A | 2022-12-06 | |||
| CN109845098A | 2019-06-04 | |||
| CN109891742A | 2019-06-14 | |||
| CN202617072U | 2012-12-19 | |||
| CN108336976A | 2018-07-27 | |||
| US20120019250A1 | 2012-01-26 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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