公开(公告)号：US20250047310A1

公开(公告)日：2025-02-06

申请号：US18363290

申请日：2023-08-01

Applicant: QUALCOMM INCORPORATED

Inventor： Alper GENC ,  David Francis BERDY ,  Christian HOLENSTEIN ,  Jose CABANILLAS

IPC: H04B1/00

Abstract: A radio frequency (RF) switching system including a plurality of band filters comprising a first band filter a second band filter and a third band filter, the first, second and third band filters configured to process signals in different communication bands, a switch located between the first, second and third band filters and a first and a second antenna, the switch configured to selectively couple the first, second and third filters to the first and second antennas, the switch comprising at least a first switch element and a second switch element configured to receive complementary control signals, wherein at least the first and the second filter are configured to be simultaneously coupled to the first antenna and the switch is configured to delay at least one of the complementary control signals by an amount defined by a difference (delta) between an ON to OFF time (Toff) and an OFF to ON time (Ton) of the first switch element and the second switch element when the switch, in response to the complementary control signals, is configured to selectively connect the first antenna to the third filter instead of the second filter while the first filter is coupled to the first antenna and a first communication path through the first filter to the first antenna is active.

公开(公告)号：US20230299808A1

公开(公告)日：2023-09-21

申请号：US17655351

申请日：2022-03-17

Applicant: QUALCOMM Incorporated

Inventor： David Francis BERDY ,  Jin CHO ,  Yu Steve ZHAO ,  Christian HOLENSTEIN ,  Ryan Scott Castro SPRING ,  Jose CABANILLAS ,  Euichan MOON

IPC: H04B1/40 ,  H03H1/00

CPC classification number: H04B1/40 ,  H03H1/0007

Abstract: In certain aspects, a system includes a first filter, a second filter, a dummy load, and a switching circuit coupled to the first filter, the second filter, and the dummy load, and coupled to a first antenna and a second antenna. In a first mode, the switching circuit couples the first filter and the second filter to the first antenna, and, in a second mode, the switching circuit couples the first filter and the third filter to the first antenna and couples the second filter to the second antenna. In certain aspects, the dummy load includes a third filter.

公开(公告)号：US20250023703A1

公开(公告)日：2025-01-16

申请号：US18439409

申请日：2024-02-12

Applicant: QUALCOMM Incorporated

Inventor： Francesco GATTA ,  Ryan Scott Castro SPRING ,  Harish VENKATACHARI ,  Christian HOLENSTEIN ,  Mehmet UZUNKOL ,  Noshir Behli DUBASH

IPC: H04L5/14 ,  H01Q23/00

Abstract: An apparatus, including: a first antenna port; a first set of one or more band filters coupled to the first antenna port; a first set of one or more low noise amplifiers (LNAs) coupled to the first set of one or more band filters, respectively; a second antenna port; a second band filter; a second low noise amplifier (LNA); a first switching device coupled between the second antenna port and the second LNA; and a second switching device coupled between the second antenna port and the second band filter.