IP Library Granted Patent US 11,811,120
Granted Patent B2
US 11,811,120 · App. 17/646,964 · Granted Nov 7, 2023

Waveguide device method for separating and/or combining orthogonally polarized signals of radiofrequency waves

Inventors: Victor Fiorese (Crolles, FR); Frederic Gianesello (Saint Alban Leysse, FR); Florian Voineau (Niort, FR)
Assignees: STMicroelectronics SA; STMicroelectronics (Crolles 2) SAS
H01P1/161H01P1/2131H01P5/19H01Q25/001
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Quick Facts
Patent No.
US 11,811,120
App. No.
17/646,964
Granted
Nov 7, 2023
Kind
B2
Abstract

An orthomode junction for separating and/or combining orthogonally-polarized radiofrequency wave signals, comprises a body which has a main cavity forming a main waveguide, which has a blind end, and auxiliary cavities forming auxiliary waveguides, which communicate laterally with the main cavity in the vicinity of the blind end thereof, and a deflection insert situated at the blind end of the main cavity and facing the auxiliary cavities, the deflection insert having different shapes on the side of the auxiliary cavities respectively.

Claims (40)

1. A method of operating a waveguide device, the method comprising:

receiving, by a main waveguide, a combined radiofrequency wave signal comprising first and second radiofrequency wave signals orthogonally-polarized from each other, the main waveguide having a blind end adjacent first and second auxiliary waveguides that are disposed perpendicular to the main waveguide and opposing each other;

splitting, at an orthomode junction disposed at the blind end, the combined radiofrequency wave signal into the first and second radiofrequency wave signals, the orthomode junction comprising a deflection insert having portions with opposing domed faces facing the first and second auxiliary waveguides, respectively, one of the domed faces being smaller than the other larger domed face, the deflection insert having flat faces facing a same auxiliary waveguide as the smaller domed face, and the flat faces extending from a first outer edge of the smaller domed face to a second outer edge of the larger domed face;

routing the first radiofrequency wave signal through the first auxiliary waveguide; and

routing the second radiofrequency wave signal through the second auxiliary waveguide.

2. The method according to claim 1 , wherein the first and second radiofrequency wave signals have a same frequency.

3. The method according to claim 1 , further comprising receiving, by the main waveguide, the combined radiofrequency wave signal from an antenna.

4. The method according to claim 3 , further comprising:

providing, by the first auxiliary waveguide, the first radiofrequency wave signal to an electronic unit; and

providing, by the second auxiliary waveguide, the second radiofrequency wave signal to the electronic unit.

5. The method according to claim 1 , wherein the larger domed face is symmetrically cylindrical, and the smaller domed face is asymmetrically cylindrical.

6. The method according to claim 1 , wherein the larger domed face has a consistent radius, and the smaller domed face has a varying radius.

7. The method according to claim 1 , wherein the deflection insert further comprises a projecting portion having second opposing domed faces facing the two auxiliary waveguides, respectively.

8. A method of operating a waveguide device, the method comprising:

receiving, by a first auxiliary waveguide, a first radiofrequency wave signal;

receiving, by a second auxiliary waveguide, a second radiofrequency wave signal, the first and second radiofrequency wave signals orthogonally-polarized from each other, the first and second auxiliary waveguides opposed to each other and meeting at a blind end of a main waveguide;

combining, at an orthomode junction disposed at the blind end, the first and second radiofrequency wave signals into a combined radiofrequency wave signal, the orthomode junction comprising a deflection insert having portions with opposing domed faces facing the first and second auxiliary waveguides, respectively, one of the domed faces being smaller than the other larger domed face, the deflection insert having flat faces facing a same auxiliary waveguide as the smaller domed face, and the flat faces extending from a first outer edge of the smaller domed face to a second outer edge of the larger domed face; and

routing the combined radiofrequency wave signal through the main waveguide.

9. The method according to of claim 8 , wherein the first and second radiofrequency wave signals have a same frequency.

10. The method according to claim 8 , further comprising:

receiving, by the first auxiliary waveguide, the first radiofrequency wave signal from an electronic unit; and

receiving, by the second auxiliary waveguide, the second radiofrequency wave signal from the electronic unit.

11. The method according to claim 10 , further comprising providing, by the main waveguide, the combined radiofrequency wave signal to an antenna.

12. The method according to claim 8 , wherein the larger domed face is symmetrically cylindrical, and the smaller domed face is asymmetrically cylindrical.

13. The method according to claim 8 , wherein the larger domed face has a consistent radius, and the smaller domed face has a varying radius.

14. The method according to claim 8 , wherein the deflection insert further comprises a projecting portion having second opposing domed faces facing the two auxiliary waveguides, respectively.

15. A method of operating a waveguide device, the method comprising:

receiving, by a main waveguide, a first radiofrequency wave signal, the main waveguide having a blind end adjacent first and second auxiliary waveguides that are disposed perpendicular to the main waveguide and opposing each other;

receiving, by the second auxiliary waveguide, a second radiofrequency signal, the first and second radiofrequency wave signals orthogonally-polarized from each other;

directing, at an orthomode junction disposed at the blind end, the first radiofrequency wave signal to the first auxiliary waveguide, the orthomode junction comprising a deflection insert having portions with opposing domed faces facing the first and second auxiliary waveguides, respectively, one of the domed faces being smaller than the other larger domed face, the deflection insert having flat faces facing a same auxiliary waveguide as the smaller domed face, and the flat faces extending from a first outer edge of the smaller domed face to a second outer edge of the larger domed face; and

directing, at the orthomode junction, the second radiofrequency wave signal to the main waveguide.

16. The method according to claim 15 , wherein the first and second radiofrequency wave signals have a same frequency.

17. The method according to claim 15 , further comprising:

receiving, by the main waveguide, the first radiofrequency wave signal from an antenna; and

providing, by the first auxiliary waveguide, the first radiofrequency wave signal to a first electronic unit.

18. The method according to claim 17 , further comprising:

receiving, by the second auxiliary waveguide, the second radiofrequency wave signal from a second electronic unit; and

providing, by the main waveguide, the second radiofrequency wave signal to the antenna.

19. The method according to claim 15 , wherein the larger domed face is symmetrically cylindrical, and the smaller domed face is asymmetrically cylindrical.

20. The method according to claim 15 , wherein the larger domed face has a consistent radius, and the smaller domed face has a varying radius.

Assignments (1)
CHANGE OF NAME Recorded Dec 8, 2023
From: STMICROELECTRONICS SA
To: STMICROELECTRONICS FRANCE
Reel/Frame 065835/0159 →
Priority Claims (1)
FR 1906471 · Jun 17, 2019 · national
Continuity (2)
Continuation 16901832 · Jun 15, 2020
Related Publication 20220131246A1 · Apr 28, 2022