Polarized electromagnetic device

Patent metadata

Field	Value
Publication number	US-2024097306-A1
Application number	US-202318525047-A
Country	US
Kind code	A1
Filing date	Nov 30, 2023
Priority date	Jan 31, 2020
Publication date	Mar 21, 2024
Grant date	—

Abstract

An electromagnetic device includes: a substrate comprising an elongated aperture having an overall length, L, and an overall width, W, as observed in a plan view of the device, where L is greater than W; a dielectric medium comprising a dielectric material other than air disposed on the substrate substantially covering the aperture, the dielectric medium having a cross sectional boundary, as viewed in the plan view of the device, that is symmetrical with respect to an in-plane axis of reflection of the dielectric medium; wherein the device is configured such that a line perpendicular to the overall length L of the elongated aperture and passing through a center point of the elongated aperture is not any in-plane axis of reflection.

First claim

1 . An electromagnetic device, comprising:
a substrate comprising an elongated aperture having an overall length, L, and an overall width, W, as observed in a plan view of the device, where L is greater than W; a dielectric medium comprising a dielectric material other than air disposed on the substrate substantially covering the aperture, the dielectric medium having a cross sectional boundary, as viewed in the plan view of the device, that is symmetrical with respect to an in-plane axis of reflection of the dielectric medium; wherein the device is configured such that a line perpendicular to the overall length L of the elongated aperture and passing through a center point of the elongated aperture is not any in-plane axis of reflection.

2 . The device of claim 1 , wherein the dielectric medium forms at least a portion of a dielectric resonator antenna, DRA.

3 . The device of claim 1 , wherein the cross-sectional boundary is a cross-sectional outer boundary.

4 . The device of claim 1 , wherein the aperture is an opening in an electrically conductive layer of the substrate.

5 . The device of claim 1 , wherein the aperture is an aperture in a substrate integrated waveguide.

6 . The device of claim 1 , wherein the aperture is an aperture over a stripline or microstrip.

7 . The device of claim 1 , wherein the aperture comprises at least two separate openings in an electrically conductive layer of the substrate.

8 . The device of claim 7 , wherein the aperture is formed by at least a portion of a coplanar waveguide.

9 . The device of claim 1 , wherein:
the cross sectional boundary has at least one recessed portion that recesses inward toward the aperture from a tangent line that partially bounds the cross sectional boundary.

10 . The device of claim 9 , wherein:
wherein the at least one recessed portion defines locations of a first portion of the dielectric medium on one side of the at least one recessed portion and a second portion of the dielectric medium on an opposing side of the at least one recessed portion; wherein, as observed in the plan view of the device, the first portion has a first maximum overall outside dimension, the second portion has a second maximum overall outside dimension, the first portion and the second portion define a neck therebetween, and the neck has a minimum overall outside dimension that is less than the first and second maximum overall outside dimensions.

11 . An array of the electromagnetic device of claim 1 , wherein:
corresponding ones of the substrate are structurally and electrically connected with each other in a planar arrangement; each one of the at least one recessed portion of a corresponding one of the dielectric medium defines locations of a first portion of the corresponding dielectric medium on one side of the at least one recessed portion and a second portion of the corresponding dielectric medium on an opposing side of the at least one recessed portion; as observed in a plan view of the array, a first set of the dielectric medium have their corresponding first and second portions oriented in a first direction or a second direction relative to an x-y coordinate system of the array, and a second set of the dielectric medium have their corresponding first and second portions oriented in a first direction or a second direction relative to the x-y coordinate system, the second direction being different from the first direction.

12 . The array of claim 11 , wherein the first and second directions are neither perpendicular nor parallel to each other.

13 . The array of claim 11 , wherein the first and second directions are perpendicular to each other.

14 . The array of claim 11 , wherein:
the first set of the dielectric medium comprise a first pair of closest adjacent ones of the dielectric medium oriented in the first direction; the second set of the dielectric medium comprise a second pair of closest adjacent ones of the dielectric medium oriented in the second direction.

15 . The array of claim 11 , wherein:
the first set of the dielectric medium comprise a first pair of closest diagonal ones of the dielectric medium oriented in the first direction; the second set of the dielectric medium comprise a second pair of closest diagonal ones of the dielectric medium oriented in the second direction.

16 . The array of claim 13 , wherein:
each dielectric medium of the first and second sets of the dielectric medium are oriented in the first direction.

17 . The array of claim 13 , wherein:
each dielectric medium of the first and second sets of the dielectric medium are oriented in the second direction.

18 . The array of claim 11 , wherein:
each first and second portion of a corresponding dielectric medium has an outwardly curved outer boundary with a neck region disposed therebetween.

19 . The array of claim 18 , wherein:
each corresponding neck region is formed by a continuation of the outwardly curved outer boundary of the corresponding dielectric medium.

20 . The array of claim 18 , wherein:
each corresponding neck region is formed by an inwardly curved outer boundary of the corresponding dielectric medium.

21 . The array of claim 20 , wherein:
each corresponding inwardly curved outer boundary is a continuation of a corresponding outwardly curved boundary of the corresponding dielectric medium.

Assignees

• Rogers Corp

Inventors

• Pandey Shailesh
• Chen Yajie
• Young Lance

Classifications

• H01P3/16 Primary

  Dielectric waveguides, i.e. without a longitudinal conductor · CPC title

• G02B6/1228

  Tapered waveguides, e.g. integrated spot-size transformers (for coupling with fibres G02B6/305) · CPC title

• H01P5/028

  between strip lines · CPC title

• H01Q9/045

  with particular feeding means (for circular polarisation H01Q9/0428) · CPC title

• H01F7/06 Primary

  Electromagnets; Actuators including electromagnets {(electric coils H01F5/00; devices for holding workpieces using electric force B23Q3/15; load-engaging elements for lifting articles electromagnetically B66C1/06; electromagnetic couplings F16D27/00; magnetic brakes F16D63/002; electromagnetically operated valves F16K11/24, F16K31/00; analysing materials by magnetic means G01N27/72, G01N27/80; electromagnets for winding mechanical clocks G04C1/02; electromagnetic relays H01H51/00; windings for salient poles of dynamo-electric machines H02K3/18; electromagnets for telegraphic communication H04L; for arc lamps H05B31/28)} · CPC title