Systems and methods for using power dividers for improved ferrite circulator RF power handling

Patent metadata

Field	Value
Publication number	US-9647309-B2
Application number	US-201615262309-A
Country	US
Kind code	B2
Filing date	Sep 12, 2016
Priority date	Apr 8, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

Systems and methods for using power dividers for improved ferrite circulator RF power handling are provided. In one embodiment, a method for switching RF power using a high power circulator switch comprises: operating a ferrite circulator switch to direct RF power to either a first output port or a second output port, the ferrite circulator switch comprising at least three ferrite circulators arranged as a triad switch, wherein a first circulator is coupled to the first output port, a second circulator is coupled to the second output port; and using a waveguide power divider coupled between the first circulator and the second circulator, distributing reflected RF power received at the first output port or the second output port between a plurality of waveguide loads.

First claim

What is claimed is:

1. A method for switching RF power using a high power circulator switch, the method comprising:
operating a ferrite circulator switch to direct RF power to either a first output port or a second output port, the ferrite circulator switch comprising at least three ferrite circulators arranged as a triad switch, wherein a first circulator is coupled to the first output port, a second circulator is coupled to the second output port; and
using a waveguide power divider coupled between the first circulator and the second circulator, distributing reflected RF power received at the first output port or the second output port between a plurality of waveguide loads.

2. The method of claim 1 , wherein the waveguide power divider comprises a four port quadrature coupler having a first input port coupled to the first circulator and a second input port coupled to the second circulator.

3. The method of claim 1 , wherein the waveguide power divider comprises a magic tee waveguide power divider.

4. The method of claim 3 , wherein the magic tee waveguide power divider comprises an H-plane port coupled to a first waveguide load and an E-plane port coupled to a second waveguide load.

5. The method of claim 1 , further comprising:
when the ferrite circulator switch is switched to a first state to direct RF power to the first output, directing any reflected RF power received at the first output through the first circulator to a first input port of the waveguide power divider; and
when the ferrite circulator switch is switched to a second state to direct RF power to the second output, directing any reflected RF power received at the second output through the second circulator of the triad switch to the second input port of the waveguide power divider.

6. The method of claim 5 , wherein the waveguide power divider evenly distributes any reflected RF power received at the first or second ports of the waveguide power divider between the plurality of waveguide loads.

7. The method of claim 5 , wherein the waveguide power divider unevenly distributes any reflected RF power received at the first or second ports of the waveguide power divider between the plurality of waveguide loads.

8. The method of claim 5 , wherein the ferrite circulator switch further comprises a third circulator coupled to an input of the ferrite circulator switch, wherein the method further comprises:
the third circulator directing RF power received at the input of the ferrite circulator switch to the first circulator when the switch is operating in the first state; and
the third circulator directing RF power received at the input of the ferrite circulator switch to the second circulator when the switch is operating in the second state.

9. The method of claim 8 , wherein the first circulator and the second circulator remain in a fixed switching state when a switching state of the third circulator is switched.

10. The method of claim 8 , wherein the first circulator and the second circulator are switched between states in lock-step with switching of the third circulator.

Assignees

• Honeywell Int Inc

Inventors

• Kroening Adam M

Classifications

• H01P1/39

  Hollow waveguide circulators · CPC title

• H01P1/383 Primary

  Junction circulators, e.g. Y-circulators · CPC title

• H01P5/22

  Hybrid ring junctions · CPC title

• H01P1/11 Primary

  by ferromagnetic devices · CPC title

• H01P5/20

  Magic-T junctions · CPC title