公开(公告)号：US20150193642A1

公开(公告)日：2015-07-09

申请号：US14661322

申请日：2015-03-18

Applicant: Broadcom Corporation

Inventor： Ahmadreza ROFOUGARAN ,  Maryam ROFOUGARAN

IPC: G06K7/10

CPC classification number: G01S13/06 ,  G06K7/10316 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/73204 ,  H01Q1/2283 ,  H01Q13/20 ,  H01Q13/22 ,  H01Q15/006 ,  H01Q15/0066 ,  H01Q15/23 ,  H01Q19/06 ,  H04B1/04 ,  H04B1/0458 ,  H04B5/0031 ,  H04B7/24 ,  Y10T307/25 ,  H01L2924/00

Abstract: A Method and system for a RFID transponder with configurable feed point for RFID communications is provided. In this regard, an RFID transponder may receive RF signals via a leaky wave antenna and modulate an amplitude of a backscattered signal associated with the received RF signals by switching between a plurality of feed points of the leaky wave antenna to vary an input impedance of said RFID transponder. Each of the plurality of feed points may be located in a different position in the resonant cavity of the leaky wave antenna. The input impedance may be controlled by switching a load in and out of a receive path of the RFID transponder. The leaky wave antenna may be integrated within and/or on an integrated circuit, an integrated circuit package, or a combination thereof.

Abstract translation: 提供了一种具有用于RFID通信的可配置馈电点的RFID应答器的方法和系统。 在这方面，RFID应答器可以经由泄漏波天线接收RF信号，并通过在漏波天线的多个馈送点之间切换来调制与所接收的RF信号相关联的反向散射信号的振幅，以改变所述 RFID应答器。 多个馈送点中的每一个可以位于泄漏波天线的谐振腔中的不同位置。 可以通过切换RFID应答器的接收路径中的负载来控制输入阻抗。 泄漏波天线可以集成在集成电路，集成电路封装或其组合中和/或内部。

公开(公告)号：US20150181542A1

公开(公告)日：2015-06-25

申请号：US14638383

申请日：2015-03-04

Applicant: BROADCOM CORPORATION

Inventor： Ahmadreza ROFOUGARAN ,  Maryam ROFOUGARAN

IPC: H04W52/42 ,  H04L27/20 ,  H04B7/04

CPC classification number: H04W52/42 ,  H03C5/00 ,  H04B7/0413 ,  H04L1/06 ,  H04L27/206 ,  H04L27/361

Abstract: Aspects of a method and system for power supply adjustment and polar modulation in a MIMO system are provided. In each RF transmit chain of a MIMO system that utilizes polar modulation, aspects of the invention may enable generating a signal representative of an amplitude of a pair of phase-quadrature baseband signals; and controlling a voltage and/or current regulator utilizing said generated signal. In this regard, a voltage and/or current supplied to a power amplifier and/or mixer of one or more of the transmit chains may be controlled based on the generated signal. Additionally, a gain of a power amplifier for each RF transmit chain may be controlled utilizing said signal representative of an amplitude. The signal representative of an amplitude may be generated by squaring each of the phase-quadrature baseband signals and calculating a square root of a sum of the squared signals.

Abstract translation: 提供了一种用于MIMO系统中的电源调整和极性调制的方法和系统的方面。 在利用极性调制的MIMO系统的每个RF发射链中，本发明的各方面可以使得能够产生表示一对相位正交基带信号的振幅的信号; 以及利用所述产生的信号来控制电压和/或电流调节器。 在这点上，可以基于产生的信号来控制提供给发射链中的一个或多个的功率放大器和/或混频器的电压和/或电流。 此外，可以利用表示幅度的所述信号来控制每个RF发射链的功率放大器的增益。 表示振幅的信号可以通过对每个相位正交基带信号进行平方并且计算平方信号的和的平方根来生成。

公开(公告)号：US20150145737A1

公开(公告)日：2015-05-28

申请号：US14613982

申请日：2015-02-04

Applicant: Broadcom Corporation

Inventor： Farid SHIRINFAR ,  Maryam ROFOUGARAN ,  Ahmadreza ROFOUGARAN

IPC: H01Q3/00

CPC classification number: H01Q3/00 ,  H01Q1/2283 ,  H01Q15/006 ,  H04B1/00 ,  H04B15/00

Abstract: A transmitter front-end for wireless chip-to-chip communication, and for other, longer-range (e.g., several meters or several tens of meters) device-to-device communication is disclosed. The transmitter front-end can include a plurality of reflector power amplifiers implemented on an IC chip and an on-chip or on-package antenna for wireless transmitting a signal to another IC chip or device. The plurality of reflector power amplifiers can reflect the radiation of the on-chip or on-package antenna in a particular pattern such that the effective radiation pattern is reinforced in a desired direction and suppressed in an undesired direction. This helps to reduce the required output power of the transmitter front-end and mitigate interference with other potential wireless chip-to-chip or longer-range communications.

Abstract translation: 公开了用于无线芯片到芯片通信的发射机前端，以及用于其他更长距离（例如，几米或几十米）设备到设备通信的发射机前端。 发射机前端可以包括实现在IC芯片上的多个反射器功率放大器和用于将信号无线发射到另一个IC芯片或设备的片上或封装天线。 多个反射器功率放大器可以以特定图案反映片上或封装内天线的辐射，使得有效辐射图案在期望的方向上被加强并且在不期望的方向上被抑制。 这有助于减少发射机前端的所需输出功率，并减轻与其他潜在的无线芯片到芯片或更远距离通信的干扰。

公开(公告)号：US20140087676A1

公开(公告)日：2014-03-27

申请号：US13628488

申请日：2012-09-27

Applicant: BROADCOM CORPORATION

Inventor： Farid SHIRINFAR ,  Med NARIMAN ,  Maryam ROFOUGARAN ,  Ahmadreza ROFOUGARAN

IPC: H04B1/04

CPC classification number: H04B1/0483 ,  H04B1/0458

Abstract: A transmitter front-end for wireless chip-to-chip communication, and potentially for other, longer range (e.g., several meters or several tens of meters) device-to-device communication, is disclosed. The transmitter front-end includes a distributed power amplifier capable of providing an output signal with sufficient power for wireless transmission by an on-chip or on-package antenna to another nearby IC chip or device located several meters or several tens of meters away. The distributed power amplifier can be fully integrated (i.e., without using external components, such as bond wire inductors) on a monolithic silicon substrate using, for example, a complementary metal oxide semiconductor (CMOS) process.

Abstract translation: 公开了一种用于无线芯片到芯片通信的发射机前端，并且潜在地用于其他较长距离（例如，几米或几十米）的设备到设备通信。 发射机前端包括分布式功率放大器，其能够提供具有足够功率的输出信号，用于通过片上或封装内天线到距离几米或几十米远的另外附近的IC芯片或设备的无线传输。 分布式功率放大器可以使用例如互补金属氧化物半导体（CMOS）工艺，在单片硅衬底上完全集成（即，不使用外部组件，例如接合线电感器）。