MULTIPLE POLE MULTIPLE THROW SWITCH DEVICE BASED ON COMPOSITE RIGHT AND LEFT HANDED METAMATERIAL STRUCTURES

• US 20100171563A1
• Filed: 12/16/2009
• Published: 07/08/2010
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: Gula Consulting Limited Liability Company (Intellectual Ventures LLC)
• Original Assignee: Rayspan Corporation
• Inventors: Gummalla, Ajay, Pathak, Vaneet, Dupuy, Alexandre, Penev, Vladimir
• Granted Patent: US 8,416,031 B2
• Time in Patent Office: Days
• US Class Current: 333/103
• CPC Class Codes: H01P 1/15 by semiconductor devices
• CPC Class Codes: H01P 1/20363 Linear resonators
• CPC Class Codes: H01P 1/2039 Galvanic coupling between Input/Output
• CPC Class Codes: H01P 1/2135 using strip line filters H01P1/2131 takes precedence
• CPC Class Codes: H01P 5/12 Coupling devices having more than two ports H01P5/04 takes precedence

Abstract

Techniques, apparatus and systems for a multiple pole multiple throw (MPMT) RF switch device based on composite left and right handed (CRLH) metamaterial structures.

Claims

1. A device, comprising:

a plurality of branches, each branch comprising;

a Composite Right/Left-Handed (CRLH) metamaterial Transmission line (TL) having a first end and a second end; and

a switch coupled to the first end of the CRLH metamaterial TL;

a plurality of terminals coupled to the plurality of branches, the plurality of terminals to enable signal communications with the plurality of branches; and

a common point coupled between two or more of the CRLH metamaterial TLs, the common point coupled to a second end of each of the two or more CRLH metamaterial TLs.

2. The device as in claim 1, wherein each of the plurality of branches has an electrical length of zero degrees for a corresponding operating frequency for single-band operation.

3. The device as in claim 1, wherein each of the plurality of branches has a first electrical length A at a first operating frequency and a second electrical length B at a second operating frequency, where A≠

B, for dual-band or multi-band operations.

4. The device as in claim 3, wherein A=180°

*k1, and B=180°

*k2, where k1 and k2 are integers and k1≠

k2.

5. The device as in claim 1, wherein the plurality of terminals each comprise:

a first terminal to couple to a transmit port;

a second terminal to couple to a receive port; and

a third terminal to couple to an antenna port.

6. The device as in claim 5, wherein the switches enable signal transmission from at least one antenna port to at least one receive port.

7. The device as in claim 6, wherein the switches enable signal transmission for a combination of antenna ports to receive ports.

8. The device as in claim 1, wherein each switch is one of:

a PIN diode, a Field Effect Transistor (FET), a Single Pole Single Throw (SPST) switch, Single Pole Dual Throw (SPDT) switch, or a combination thereof.

9. A device, comprising:

a plurality of branches, wherein each branch comprises;

a CRLH metamaterial TL coupled to a one end of a branch;

a switch coupled to the CRLH metamaterial TL; and

a common point coupling the plurality of branches,

wherein each switch of the plurality of branches is coupled to a terminal for signal transmission, and

wherein a plurality of control signals controls the switches to enable signal transmissions from a terminal or a combination of terminals.

10. The device as in claim 9, wherein the plurality of branches are radially distributed from the common point.

11. The device as in claim 9, wherein each of the plurality of branches has an electrical length of zero degrees for a corresponding operating frequency for single-band operations.

12. The device as in claim 9, wherein each of the plurality of branches has a first electrical length A at a first operating frequency and a second electrical length of B at a second operating frequency, where A≠

B, for dual-band or multi-band operations.

13. The device as in claim 12, wherein A=180°

*k1, and B=180°

*k2, where k1 and k2 are integers and k1≠

k2.

14. The device as in claim 9, wherein a first branch has a first electrical length of 180°

*k1 at a first operating frequency and a second branch has a second electrical length of 180°

*k2 at a second operating frequency, where k1 and k2 are integers and k1≠

k2.

15. The device as in claim 9, wherein the plurality of terminals each comprise:

a first terminal to couple to a transmit port;

a second terminal to couple to a receive port; and

a third terminal to couple to an antenna port.

16. The device as in claim 15, wherein the plurality of terminals are to couple to a plurality of antenna ports.

17. The device as in claim 16, wherein each switch is to enable signal transmissions from at least one antenna port to at least one receive port.

18. The device as in claim 16, wherein each switch is to enable signal transmissions from at least one transmit port to at least one antenna port.

19. The device as in claim 18, wherein the device enables signal transmission for a combination of antenna ports to receive ports.

20. The device as in claim 18, wherein the device enables signal transmission for a combination of antenna ports to transmit ports.