Peaking inductor array for peaking control unit of transceiver

Patent metadata

Field	Value
Publication number	US-9577607-B1
Application number	US-201514816435-A
Country	US
Kind code	B1
Filing date	Aug 3, 2015
Priority date	Aug 3, 2015
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

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 inductor array, the peaking inductor array comprising:
a plurality of cells connected in parallel, each cell comprising a respective active inductor, each respective active inductor comprising a respective decoupling capacitor and a respective selectable resistor,
wherein the respective decoupling capacitor and the respective selectable resistor in each cell are connected in series,
wherein a capacitance of the respective decoupling capacitor in each cell is larger than intrinsic and extrinsic capacitances of the respective active inductor,
wherein each respective selectable resistor comprises a respective switch in series with a respective resistor, and
wherein each respective switch is opened or closed to control peaking of the peaking inductor array in two dimensions.

2. The peaking inductor array of claim 1 , wherein each active inductor comprises a respective first field effect transistor (FET) in series with a second respective FET, and wherein the respective decoupling capacitor in each cell is connected in parallel with the respective first FET.

3. The peaking inductor array of claim 2 , wherein the respective selectable resistor in each cell is connected in parallel with the respective first FET.

4. The peaking inductor array of claim 1 , wherein the peaking inductor array is located in a peaking control unit of a transceiver circuit, and wherein the peaking inductor array is connected in parallel with a direct current (DC) diode array in the peaking control unit.

5. A method for providing a peaking control unit of a transceiver, comprising:
forming a peaking inductor array, the forming comprising:
connecting a plurality of cells connected in parallel, each cell comprising a respective active inductor, each respective active inductor comprising a respective decoupling capacitor and a respective selectable resistor; and
connecting the respective decoupling capacitor and the respective selectable resistor in each cell in series, 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; and

controlling peaking of the peaking inductor array in two dimensions by opening or closing at least one respective switch.

6. The method of claim 5 , wherein each respective active inductor comprises a first field effect transistor (FET) and a second FET, and wherein forming the peaking inductor array further comprises connecting the first FET and the second FET in series and connecting the respective decoupling capacitor in each cell in parallel with the respective first FET.

7. The method of claim 6 , wherein forming the peaking inductor array further comprises connecting the selectable resistor in each cell in parallel with the respective first FET.

8. The method of claim 5 , further comprising connecting the peaking inductor array in parallel with a direct current (DC) diode array in the peaking control unit.

9. A peaking control unit of a transceiver, comprising:
a peaking inductor array comprising a plurality of cells connected in parallel, each cell comprising a respective active inductor, each respective active inductor comprising a respective decoupling capacitor and a respective selectable resistor,
wherein the respective decoupling capacitor and the respective selectable resistor in each cell are connected in series,
wherein a capacitance of the respective decoupling capacitor in each cell is larger than intrinsic and extrinsic capacitances of the respective active inductor,
wherein each respective selectable resistor comprises a respective switch in series with a respective resistor, and
wherein each respective switch is opened or closed to control peaking of the peaking inductor array in two dimensions.

10. The peaking control unit of claim 9 , wherein each active inductor comprises a respective first field effect transistor (FET) in series with a second respective FET, and wherein the respective decoupling capacitor in each cell is connected in parallel with the respective first FET.

11. The peaking control unit of claim 9 , wherein the respective selectable resistor in each cell is connected in parallel with the respective first FET.

12. The peaking control unit of claim 9 , wherein the peaking inductor array is connected in parallel with a direct current (DC) diode array in the peaking control unit.

Assignees

• IBM

Inventors

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

Classifications

• H03H11/48 Primary

  simulating reactances · CPC title

• H03F1/42

  Modifications of amplifiers to extend the bandwidth · 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

• H04L25/03

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

• H04B1/12

  Neutralising, balancing, or compensation arrangements · CPC title