公开(公告)号：US20170346506A1

公开(公告)日：2017-11-30

申请号：US15199692

申请日：2016-06-30

Applicant: Broadcom Corporation

Inventor： Bevin George PERUMANA ,  Saikat SARKAR ,  Tirdad SOWLATI

IPC: H04B1/04 ,  H01L23/66 ,  H04B7/06

CPC classification number: H04B1/0458 ,  H01L23/66 ,  H01L2223/6677 ,  H01L2223/6683 ,  H04B7/0617 ,  H04B7/0689

Abstract: Systems and methods are provided for millimeter-wave (MMW) communication, the system includes a transceiver chip to generate and to receive signals. An interface is used to communicate the signals between the transceiver chip and one or more active antenna modules. The signals include modulated MMW signals and control signals. The transceiver chip includes baseband circuitry, up and down conversion mixers, and RF front-end circuitry. An active antenna module receives a first modulated MMW signal from the interface for transmission via antennas and to receive a second modulated MMW signal from the antennas for transmission through the interface to the transceiver chip.

公开(公告)号：US20150303878A1

公开(公告)日：2015-10-22

申请号：US14712743

申请日：2015-05-14

Applicant: BROADCOM CORPORATION

Inventor： Tirdad SOWLATI ,  Ehsan ADABI ,  Sayedfarid SHIRINFAR ,  Ahmadreza ROFOUGARAN

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/193

CPC classification number: H03F1/0205 ,  H03F1/0272 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/24 ,  H03F2200/105 ,  H03F2200/405 ,  H03F2200/451 ,  H03F2200/78 ,  H03F2203/21142 ,  H03G3/20

Abstract: An apparatus includes a cascode amplifier. The cascode amplifier includes a first transistor and a second transistor. The cascode amplifier is configured to receive a first bias voltage, a second bias voltage, and a signal. The cascode amplifier is also configured to amplify the signal based at least on the first bias voltage and the second bias voltage. The apparatus also includes a first feedback module and a second feedback module. The first feedback module is configured to adjust the first bias voltage based at least on the amplified signal. The second feedback module is configured to adjust the second bias voltage based at least on a voltage distribution across the first transistor and the second transistor. A system and method for maintaining cascode amplifier performance are also provided.

Abstract translation: 一种装置包括共源共栅放大器。 共源共栅放大器包括第一晶体管和第二晶体管。 共射共栅放大器被配置为接收第一偏置电压，第二偏置电压和信号。 级联放大器还被配置为至少基于第一偏置电压和第二偏置电压来放大信号。 该装置还包括第一反馈模块和第二反馈模块。 第一反馈模块被配置为至少基于放大的信号来调整第一偏置电压。 第二反馈模块被配置为至少基于跨越第一晶体管和第二晶体管的电压分布来调整第二偏置电压。 还提供了用于维持共源共栅放大器性能的系统和方法。

公开(公告)号：US20170047667A1

公开(公告)日：2017-02-16

申请号：US14854832

申请日：2015-09-15

Applicant: BROADCOM CORPORATION

Inventor： Saikat SARKAR ,  Seunghwan YOON ,  Bagher AFSHAR ,  Michael BOERS ,  Jesus CASTANEDA ,  Tirdad SOWLATI

IPC: H01Q23/00 ,  H01Q3/30 ,  H01Q3/24

CPC classification number: H01P5/16 ,  H01P1/15

Abstract: An electronic device includes circuitry configured to determine an antenna operation mode for one or more antenna arrays. The circuitry is further configured to control the one or more antenna arrays to operate in a combined antenna mode via a Wilkinson combiner. The circuitry is also configured to control the one or more antenna arrays to operate in an isolated antenna mode via a single-pole, multi-throw switch.

Abstract translation: 电子设备包括被配置为确定一个或多个天线阵列的天线操作模式的电路。 电路还被配置成通过威尔金森组合器控制一个或多个天线阵列以组合天线方式工作。 该电路还被配置为通过单刀多掷开关来控制一个或多个天线阵列以隔离天线方式工作。

公开(公告)号：US20160150542A1

公开(公告)日：2016-05-26

申请号：US14952871

申请日：2015-11-25

Applicant: BROADCOM CORPORATION

Inventor： Alireza TARIGHAT MEHRABANI ,  Michael BOERS ,  Masoud KAHRIZI ,  Tirdad SOWLATI ,  Bagher AFSHAR ,  Payam TORAB JAHROMI ,  Sean Timothy NICOLSON ,  Brima Babatunde IBRAHIM

IPC: H04W72/04 ,  H04W16/28

CPC classification number: H04W16/28 ,  H04W88/085

Abstract: A device implementing the subject scalable radio frequency communication system includes one or more primary radio frequency integrated circuits (RFICs) and at least one secondary RFIC. Each of the one or more primary RFICs is configured to receive an intermediate frequency (IF) signal from a baseband processor, upconvert the IF signal to a radio frequency (RF) signal, and transmit the RF signal to one or more secondary RFICs. The secondary RFICs under each of the one or more primary RFICs are configured to receive the RF signal from the corresponding primary RFIC, phase shift and amplify the RF signal, and transmit the RF signal via a plurality of antenna elements.

Abstract translation: 实现主题可缩放射频通信系统的设备包括一个或多个主要射频集成电路（RFIC）和至少一个次要RFIC。 一个或多个主要RFIC中的每个被配置为从基带处理器接收中频（IF）信号，将IF信号上变频到射频（RF）信号，并将RF信号发送到一个或多个次要RFIC。 在一个或多个主要RFIC中的每一个下面的次要RFIC被配置为从相应的主RFIC接收RF信号，相移并放大RF信号，并且经由多个天线元件发送RF信号。

公开(公告)号：US20150248964A1

公开(公告)日：2015-09-03

申请号：US14699944

申请日：2015-04-29

Applicant: BROADCOM CORPORATION

Inventor： Sayedfarid SHIRINFAR ,  Ehsan ADABI FIROUZJAEI ,  Tirdad SOWLATI ,  Ahmadreza ROFOUGARAN

IPC: H01F27/28 ,  H03F3/45 ,  H01F41/02 ,  H03F3/19

CPC classification number: H01F27/2823 ,  H01F27/28 ,  H01F41/02 ,  H01F41/10 ,  H03F3/19 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45076 ,  H03F3/45179 ,  H03F3/68 ,  H03F2200/405 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/45172 ,  H03F2203/45228 ,  H03F2203/45394 ,  Y10T29/4902

Abstract: A transformer includes multiple differential ports and first and second transformer windings. The first transformer winding includes a first transformer half-winding coupled to a first differential port of the differential ports. The first transformer winding also includes a second transformer half-winding coupled to a second differential port of the differential ports. An amplifier system that has a transformer is also provided. The amplifier system includes a first and a second stage amplifier. The first stage amplifier includes a first and a second amplifier. The second stage amplifier includes a third and a fourth amplifier. The transformer is coupled between the first stage amplifier and the second stage amplifier, where the transformer has a primary loop and a secondary loop. The primary loop of the transformer may be configured to receive differential signals of the first amplifier. A method for fabricating a transformer is also provided.

Abstract translation: 变压器包括多个差分端口和第一和第二变压器绕组。 第一变压器绕组包括耦合到差分端口的第一差分端口的第一变压器半绕组。 第一变压器绕组还包括耦合到差分端口的第二差分端口的第二变压器半绕组。 还提供了具有变压器的放大器系统。 放大器系统包括第一和第二级放大器。 第一级放大器包括第一和第二放大器。 第二级放大器包括第三和第四放大器。 变压器耦合在第一级放大器和第二级放大器之间，其中变压器具有主回路和次级回路。 变压器的主回路可以被配置为接收第一放大器的差分信号。 还提供了一种用于制造变压器的方法。

公开(公告)号：US20140306755A1

公开(公告)日：2014-10-16

申请号：US13895254

申请日：2013-05-15

Applicant: Broadcom Corporation

Inventor： Sayedfarid SHIRINFAR ,  Ehsan ADABI FIROUZJAEI ,  Tirdad SOWLATI ,  Ahmadreza ROFOUGARAN

IPC: H01F27/28 ,  H01F41/10 ,  H03F3/26

CPC classification number: H01F27/2823 ,  H01F27/28 ,  H01F41/02 ,  H01F41/10 ,  H03F3/19 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45076 ,  H03F3/45179 ,  H03F3/68 ,  H03F2200/405 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/45172 ,  H03F2203/45228 ,  H03F2203/45394 ,  Y10T29/4902

Abstract: A transformer has first and second transformer windings including multiple differential ports. Each of the first and second transformer windings include a first transformer half-winding coupled to a first differential port of the differential ports. Each of the first and second transformer windings also include a second transformer half-winding coupled to a second differential port of the differential ports. Each of the first and second transformer windings is divided symmetrically at a common node to form the respective first and second transformer half-windings. The first transformer half-winding is configured to form one half of an inductance in each of the first and second transformer windings. The second transformer half-winding is configured to form another half of the inductance in each of the first and second transformer windings. The common node of the first transformer winding is configured to receive a supply voltage.

Abstract translation: 变压器具有包括多个差分端口的第一和第二变压器绕组。 第一和第二变压器绕组中的每一个包括耦合到差分端口的第一差分端口的第一变压器半绕组。 第一和第二变压器绕组中的每一个还包括耦合到差分端口的第二差分端口的第二变压器半绕组。 第一和第二变压器绕组中的每一个在公共节点处对称分开以形成相应的第一和第二变压器半绕组。 第一变压器半绕组被配置为在第一和第二变压器绕组中的每一个中形成电感的一半。 第二变压器半绕组构造成在第一和第二变压器绕组中的每一个中形成电感的另一半。 第一变压器绕组的公共节点被配置为接收电源电压。