MoCA splitter device

Patent metadata

Field	Value
Publication number	US-11895435-B2
Application number	US-202217872787-A
Country	US
Kind code	B2
Filing date	Jul 25, 2022
Priority date	Feb 3, 2020
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

A MoCA splitter device may include an input port, a first output port and a second output port, a first transmission line configured to connect the input port to the first output port, a second transmission line configured to connect the input port to the first output port, a first isolation element configured to connect the first transmission line to the second transmission line, a second isolation element configured to connecting the first transmission line to the second transmission line. The first isolation element and the second isolation element are configured to provide an isolation level between the first output port and the second output port that is less than a predetermined isolation level of about less than 16 dB in a MoCA frequency band.

First claim

What is claimed is:

1. A MoCA splitter device for providing an output port isolation level that is less than a predetermined isolation level in a MoCA frequency band and for providing an input port to output port insertion loss that is less than a predetermined insertion loss level comprising:
an isolation level limiting device configured to provide an output port isolation level that is less than a predetermined isolation level in a MoCA frequency band;
an insertion loss limiting device configured to provide an input-output port insertion loss level that is less than a predetermined insertion loss level;
wherein the isolation level limiting device is configured to provide a substantially uniform output port isolation level;
wherein the predetermined isolation level is about 16 dB or less;
wherein the MoCA frequency band is 1125-1675 MHz;
wherein the predetermined insertion loss level is about 8 dB or less; and
further comprising a Wilkinson circuit configuration.

2. The device of claim 1 , further comprising:
an input port;
a plurality of output ports; and
a splitter configured to be connected between the input port and the plurality of output ports.

3. The device of claim 1 , further comprising a splitter that includes:
a first transmission line, a second transmission line, and the isolation level limiting device that includes a first isolation element connected between the first transmission line and the second transmission line, and a second isolation element connected between the first transmission line and the second transmission line.

4. The device of claim 3 , wherein the first isolation element and the second isolation element are configured to cooperate with each other so as to provide the output port isolation level that is less than the predetermined isolation level in the MoCA frequency band.

5. The device of claim 3 , further comprising a plurality of output ports, and wherein the first isolation element and the second isolation element are configured to cooperate with each other so as to provide the output port isolation level between each of the plurality of output ports that is less than the predetermined isolation level in the MoCA frequency band.

6. The device of claim 1 , wherein the isolation level limiting device comprises a first isolation element and a second isolation element.

7. The device of claim 1 , wherein the isolation level limiting device includes a first isolation element located upstream from a second isolation element.

8. The device of claim 1 , wherein the insertion loss limiting device comprises a first isolation element and a second isolation element.

9. The device of claim 8 , further comprising an input port and a plurality of output ports, and wherein the first isolation element and the second isolation element are configured to provide the input-output port insertion loss level between the input port and each of the output ports that is less than the predetermined insertion loss level.

10. The device of claim 1 , further comprising a plurality of output ports and wherein the isolation level limiting device is configured to provide the substantially uniform isolation level between each of the plurality of output ports.

11. The device of claim 1 , wherein the isolation level limiting device comprises a type and a value of device that are each selected to configure the output port isolation level to be less than the predetermined isolation level in the MoCA frequency band.

12. The device of claim 1 , wherein the insertion loss limiting device comprises a type and a value that are each selected to configure the input-output port insertion loss level to be less than the predetermined insertion loss level.

13. The device of claim 1 , wherein the insertion loss limiting device comprises a first resistor and a second resistor, and the first resistor has a resistance of about 200 Ohms or less and the second resistor has a resistance of about 400 Ohms or less.

14. The device of claim 1 , wherein the insertion loss limiting device comprises a resistor and a capacitor, and the resistor has a resistance of about 200 Ohms or less and the capacitor has a capacitance of about 6.8 pf or less.

15. A MoCA splitter device for providing an output port isolation level that is less than a predetermined isolation level in a MoCA frequency band and an input/output port insertion loss that is less than a predetermined insertion loss level comprising:
an isolation level control device configured to provide a substantially uniform output port isolation level that is less than a predetermined isolation level in a MoCA frequency band and an input-output port insertion loss level that is less than a predetermined insertion loss level;
wherein the predetermined isolation level is about 16 dB or less;
wherein the MoCA frequency band is 1125-1675 MHz;
wherein the predetermined insertion loss level is about 8 dB or less; and
further comprising a Wilkinson circuit configuration.

16. The device of claim 15 , further comprising:
an input port;
a plurality of output ports; and
a splitter configured connected between the input port and the output port.

17. The device of claim 15 , further comprising a splitter that includes a first transmission line and a second transmission line, and the isolation level control device includes a first isolation element connected between the first transmission line and the second transmission line, and a second isolation element connected between the first transmission line and the second transmission line.

18. The device of claim 17 , wherein the first isolation element and the second isolation element are configured to cooperate with each other so as to provide the output port isolation level that is less than the predetermined isolation level in the MoCA frequency band.

19. The device of claim 15 , wherein the isolation level control device includes a first isolation element located upstream from a second isolation element.

20. The device of claim 15 , wherein the isolation level control device comprises a type and a value of device that are each selected to configure the output port isolation level to be less than the predetermined isolation level in the MoCA frequency band.

21. The device of claim 15 , wherein the isolation level control device comprises a type and a value of device that are each selected to configure the input-output port insertion loss level to be less than the predetermined insertion loss level.

22. The device of claim 15 , wherein the isolation level control device comprises a type and a value that are each selected to provide the substantially uniform output port isolation level.

23. The device of claim 15 , wherein the insertion loss limiting device comprises a first resistor and a second resistor, and the first resistor has a resistance of about 200 Ohms or less and the second resistor has a resistance of about 400 Ohms or less.

24. The device of claim 15 , wherein the insertion loss limiting device comprises a resistor and a capacitor, and the resistor has a resistance of about 200 Ohms or less and the capacitor has a capacitance of about 6.8 pf or less.

25. The device of claim 15 , wherein the isolation level control device is further configured to provide an input-output port insertion loss level that is less than a predetermined insertion loss level, wherein the predetermined insertion loss level is about 8 dB or less.

Assignees

• Ppc Broadband Inc

Inventors

• Bailey Paul
• Alkan Erdogan
• Hart Thomas

Classifications

• H04N7/104 Primary

  Switchers or splitters · CPC title

• H01P1/213

  combining or separating two or more different frequencies (H01P1/215 takes precedence) · CPC title

• H01P5/12

  Coupling devices having more than two ports (H01P5/04 takes precedence) · CPC title

• H03H7/06

  including resistors (H03H7/075, H03H7/09, H03H7/12, H03H7/13 take precedence) · CPC title

• H03H7/46

  Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source · CPC title