公开(公告)号：US20150118956A1

公开(公告)日：2015-04-30

申请号：US14062389

申请日：2013-10-24

Applicant: Broadcom Corporation

Inventor： Prasanna Desai ,  John Walley ,  Henrik Tholstrup Jensen ,  Steven Deane Hall ,  Domitille Esnard-Domerego ,  Hea Joung Kim ,  Yasantha Rajakarunanayake ,  Ming Lin ,  Vadim Bishtein ,  Nhan Quang Tran ,  Ntsanderh Azenui

IPC: H04B5/00

CPC classification number: H04B5/0037 ,  H04B5/0031 ,  H04B5/0075

Abstract: A communication device includes a first and second near-field wireless (NFW) module operating with a first and second protocol, respectively. A module and method to improve the operational efficiency of the first and second NFW modules are disclosed. Due to close proximity between the first and second NFW modules in the communication device, an undesirable parasitic inductive coupling can occur that can degrade the operational performance of the modules. The first NFW module can be configured to control inductive coupling of the second NFW module when an electromagnetic (EM) field operating with the first protocol is detected. Additionally, the second NFW module can be configured to control inductive coupling of the first NFW module when an EM field operating with the second protocol is detected. Controlling the inductive coupling of each module can be performed by means of detuning an inductive coupling element of each module.

Abstract translation: 通信设备包括分别以第一和第二协议操作的第一和第二近场无线（NFW）模块。 公开了一种用于提高第一和第二NFW模块的操作效率的模块和方法。 由于通信设备中第一和第二NFW模块之间的紧密接近，可能会发生不利的寄生电感耦合，这可能降低模块的操作性能。 当检测到用第一协议操作的电磁（EM）场时，第一NFW模块可被配置为控制第二NFW模块的电感耦合。 另外，当检测到用第二协议操作的EM场时，第二NFW模块可被配置为控制第一NFW模块的电感耦合。 控制每个模块的电感耦合可以通过使每个模块的电感耦合元件失谐来实现。