公开(公告)号：US09300264B2

公开(公告)日：2016-03-29

申请号：US14465841

申请日：2014-08-22

Applicant: MEDIATEK INC.

Inventor： Ravikanth Suravarapu ,  Saravanan Rajapandian ,  Narayanan Baskaran ,  Caiyi Wang ,  Jing Li

IPC: H04B7/00 ,  H04B1/40 ,  H04B1/00 ,  H04L5/12 ,  H04W88/12 ,  H03G3/30

CPC classification number: H04B1/005 ,  H03G3/3036 ,  H04B1/18

Abstract: A receiver includes LNA-mixer arrangement, a current buffer arrangement and an analog filter arrangement. The LNA-mixer arrangement receives a plurality of input signals and provides a wide-band input match for a specified frequency range of operation. The LNA-mixer arrangement includes a plurality of LNA structures and a plurality of mixer structures where each of the LNA structure path is coupled to a single mixer structure. The LNA-mixer arrangement outputs a first signal. The current buffer arrangement receives the first signal and reduces the Image Rejection (IR) asymmetry between the high frequency portion and the low frequency portion of the first signal as well as provides a gain to the first signal. The current buffer arrangement outputs a second signal. The analog filter arrangement receives the second signals and perform filtering and calibration.

Abstract translation: 接收机包括LNA混频器布置，当前缓冲器布置和模拟滤波器布置。 LNA混频器装置接收多个输入信号，并在指定的频率操作范围内提供宽带输入匹配。 LNA混合器装置包括多个LNA结构和多个混合器结构，其中每个LNA结构路径耦合到单个混合器结构。 LNA混频器布置输出第一信号。 当前的缓冲器装置接收第一信号并且降低第一信号的高频部分和低频部分之间的图像抑制（IR）不对称性，并且为第一信号提供增益。 当前的缓冲装置输出第二信号。 模拟滤波器装置接收第二信号并执行滤波和校准。

公开(公告)号：US20160056784A1

公开(公告)日：2016-02-25

申请号：US14465841

申请日：2014-08-22

Applicant: MEDIATEK INC.

Inventor： Saravanan Rajapandian ,  Caiyi Wang ,  Jing Li ,  Ravikanth Suravarapu ,  Narayanan Baskaran

IPC: H03G3/30

CPC classification number: H04B1/005 ,  H03G3/3036 ,  H04B1/18

Abstract: A receiver includes LNA-mixer arrangement, a current buffer arrangement and an analog filter arrangement. The LNA-mixer arrangement receives a plurality of input signals and provides a wide-band input match for a specified frequency range of operation. The LNA-mixer arrangement includes a plurality of LNA structures and a plurality of mixer structures where each of the LNA structure path is coupled to a single mixer structure. The LNA-mixer arrangement outputs a first signal. The current buffer arrangement receives the first signal and reduces the Image Rejection (IR) asymmetry between the high frequency portion and the low frequency portion of the first signal as well as provides a gain to the first signal. The current buffer arrangement outputs a second signal. The analog filter arrangement receives the second signals and perform filtering and calibration.

Abstract translation: 接收机包括LNA混频器布置，当前缓冲器布置和模拟滤波器布置。 LNA混频器装置接收多个输入信号，并在指定的频率操作范围内提供宽带输入匹配。 LNA混合器装置包括多个LNA结构和多个混合器结构，其中每个LNA结构路径耦合到单个混合器结构。 LNA混频器布置输出第一信号。 当前的缓冲器装置接收第一信号并且降低第一信号的高频部分和低频部分之间的图像抑制（IR）不对称性，并且为第一信号提供增益。 当前的缓冲装置输出第二信号。 模拟滤波器装置接收第二信号并执行滤波和校准。