Title:
A diversity receiver front end system provided with a phase shift part article
Document Type and Number:
Japanese Patent JP6029728
Kind Code:
B2
Abstract:
A multi-band receiver comprises a plurality of parallel paths. Each path passes a different frequency band and includes a respective amplifier 314a, 314b. At least one of the paths also has a phase-shift component 624a, 624d. The phase-shift component of a first path is configured to correct for a phase-shift at an out-of-band frequency caused by a component in the first path. The component causing the out-of-band phase shift may be the path’s amplifier. In an embodiment, a phase-shift component 624a disposed along a first path (for passing a first frequency band) is configured to phase-shift a second frequency band signal based on a phase shift in the second frequency band caused by the amplifier 314a in the first path. The second frequency band signal may pass through the first path in both directions after leaking from a second path through the combiner. The phase-shifting may ensure that at the output of the first path, a first frequency band signal is in-phase with a reflected second frequency band signal. The phase shift component may be controlled by a tuning signal. The receiver may be a diversity receiver front-end module implemented on a substrate.
Inventors:
Brotissiak, Stefan Richard Marie
Application Number:
JP2015210722A
Publication Date:
November 24, 2016
Filing Date:
October 27, 2015
Export Citation:
Assignee:
SKYWORKS SOLUTIONS,INC.
International Classes:
H04B7/08; H04B1/16; H04J99/00
Domestic Patent References:
| JP2009077331A | ||||
| JP2004165711A |
Foreign References:
| US20090291647 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara
Previous Patent: An aging method of awamori
Next Patent: MIRROR, DOUSER AND SHUTTER OPERATING DEVICE OF LENS SHUTTER TYPE SINGLE-LENS REFLEX CAMERA
Next Patent: MIRROR, DOUSER AND SHUTTER OPERATING DEVICE OF LENS SHUTTER TYPE SINGLE-LENS REFLEX CAMERA