Open waveguide antenna and system having the same

Patent metadata

Field	Value
Publication number	US-12148997-B2
Application number	US-202217943450-A
Country	US
Kind code	B2
Filing date	Sep 13, 2022
Priority date	Sep 14, 2021
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

A waveguide antenna system, includes: an electromagnetic, EM, transition portion having a transition region having a signal feed interface and an open waveguide section, the EM transition portion configured to couple EM energy from the signal feed interface to a guided waveguide mode of EM energy to the open waveguide section via the transition region; and a leaky waveguide antenna portion configured and disposed to radiate electromagnetic energy received from the open waveguide section; wherein the EM transition portion is electromagnetically coupled to the leaky waveguide antenna portion, the EM transition portion being configured to support a transfer of electromagnetic energy from a signal feed structure to the leaky waveguide antenna portion.

First claim

The invention claimed is:

1. A waveguide antenna system, comprising:
an electromagnetic, EM, transition portion comprising a transition region having a signal feed interface and an open waveguide section, the EM transition portion configured to couple EM energy from the signal feed interface to a guided waveguide mode of EM energy to the open waveguide section via the transition region; and
a leaky waveguide antenna portion configured and disposed to radiate electromagnetic energy received from the open waveguide section,
wherein the signal feed interface is disposed between a planar signal feed structure and the transition region, and
wherein the EM transition portion is electromagnetically coupled to the leaky waveguide antenna portion, the EM transition portion being configured to support a transfer of electromagnetic energy from a signal feed structure to the leaky waveguide antenna portion.

2. The waveguide antenna system of claim 1 , wherein:
the EM transition portion is configured to support a transfer of electromagnetic energy from a the planar signal feed structure to the leaky waveguide antenna portion.

3. The waveguide antenna system of claim 1 , wherein:
the open waveguide section comprises an open trough waveguide.

4. The waveguide antenna system of claim 1 , wherein:
the open waveguide section comprises an open groove waveguide.

5. A waveguide antenna system, comprising:
a plurality of the waveguide antenna system of claim 1 configured for antenna-on-package applications.

6. The waveguide antenna system of claim 5 , wherein:
in a transmit mode and configuration, each open waveguide section is disposed and configured to receive electromagnetic energy from an antenna-on-package component, or a patch-on-printed-circuit-board component, and deliver the electromagnetic energy to a corresponding leaky waveguide antenna portion; and
in a receive mode and configuration, each open waveguide section is disposed and configured to receive electromagnetic energy from a corresponding leaky waveguide antenna portion and deliver the electromagnetic energy to an antenna-on-package component, or a patch-on-printed-circuit-board component.

7. The waveguide antenna system of claim 6 , wherein the patch-on-printed-circuit-board component includes one or both of an antenna-on-package (AoP) feed and a patch antenna formed on the planar signal feed structure.

8. A waveguide antenna system, comprising:
a plurality of the waveguide antenna system of claim 1 configured for patch-on-printed-circuit-board applications.

9. The waveguide antenna system of claim 1 , wherein:
the transition region comprises any one of: a ridge waveguide; and an edge feed to the open waveguide section.

10. The waveguide antenna system of claim 1 , wherein the open waveguide section includes a first end coupled to a signal port and an opposing second end connected to an electrically conductive short circuit.

11. The waveguide antenna system of claim 10 , wherein the electrically conductive short circuit is in electrical connection with an electrically conductive surface disposed at an upper end of the open waveguide section.

Assignees

• Rogers Corp

Inventors

• Clavijo Sergio
• Sanford John
• Sprentall Karl Edward
• Baars Dirk
• Spink Jared Kenneth
• Bhat Pramod Srinivas

Classifications

• H01Q13/22

  Longitudinal slot in boundary wall of waveguide or transmission line {(H01Q13/203 takes precedence)} · CPC title

• H01Q1/3233 Primary

  particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems · CPC title

• H01Q1/2283

  mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package · CPC title

• H01Q17/001

  for modifying the directional characteristic of an aerial · CPC title

• H01Q1/523

  between antennas of an array · CPC title