Peaking inductor array for peaking control unit of transceiver

Patent metadata

Field	Value
Publication number	US-10038468-B2
Application number	US-201715671408-A
Country	US
Kind code	B2
Filing date	Aug 8, 2017
Priority date	Aug 3, 2015
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

Embodiments relate to peaking inductor array for a peaking control unit of a transceiver. An aspect includes the peaking inductor array comprising a plurality of cells connected in parallel, each cell comprising a respective active inductor. Another aspect includes each of the plurality of cells further comprising a decoupling capacitor.

First claim

What is claimed is:

1. A peaking control unit of a transceiver, comprising:
a linear equalizer;
a direct current (DC) diode array; and
a peaking inductor array connected in parallel with the DC diode array, the peaking inductor array comprising:
a plurality of cells connected in parallel, wherein each cell comprises a respective active inductor, a respective decoupling capacitor, and a respective selectable resistor,
wherein each respective active inductor comprises a respective first field effect transistor (FET) in series with a respective second FET, wherein the respective decoupling capacitor and the respective selectable resistor in each cell are connected in series and are each connected in parallel with the respective first FET, and wherein a capacitance of the respective decoupling capacitor in each cell is larger than intrinsic and extrinsic capacitances of the respective active inductor, and
wherein each respective selectable resistor comprises a respective switch in series with a respective resistor, wherein each respective switch is opened or closed to control peaking of the peaking inductor array in two dimensions.

Assignees

• IBM

Inventors

• Francese Pier A
• Prasad Mangal
• Tran Hung H
• Yuan Xiaobin

Classifications

• H04B1/40 Primary

  Circuits · CPC title

• H04B1/12

  Neutralising, balancing, or compensation arrangements · CPC title

• H04L25/03

  Shaping networks in transmitter or receiver, e.g. adaptive shaping networks · CPC title

• H04B1/38

  Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving · CPC title

• H03F1/42

  Modifications of amplifiers to extend the bandwidth · CPC title