Slit loaded tapered slot patch antenna
First Claim
1. A patch antenna for a wireless communications device, comprising:
- a conductive ground plane member;
a first aperture provided in said conductive ground plane member including a first tapered portion and a second tapered portion, each of said first and second tapered portions respectively having opposing tapered edges that converge along a direction toward a central axis of said first aperture and a transverse edge connecting said opposing tapered edges at a point distal from said central axis, to define a bow-tie shape; and
at least a second elongated aperture formed in said conductive ground plane, an elongated edge of said second elongated aperture positioned adjacent to said transverse edge and separated from said transverse edge by a gap defined by a portion of said conductive ground plane.
1 Assignment
0 Petitions
Accused Products
Abstract
Patch antenna (100) for a wireless communications device has a reduced size. The patch antenna is operable on a fundamental frequency f0 and a first harmonic f, of the fundamental frequency, with substantially co-located peak gain directions on both frequencies. The patch antenna (100) is formed from a conductive ground plane (102) of generally rectangular shape. A first aperture (108) provided in the conductive ground plane member (102) defines a bow-tie shape. Additional elongated apertures (118, 120) are provided for reactive loading. The elongated apertures (118, 120) disrupt the phasing of surface currents within the conductive ground plane member (102) around the periphery of the first aperture (108).
-
Citations
20 Claims
-
1. A patch antenna for a wireless communications device, comprising:
-
a conductive ground plane member;
a first aperture provided in said conductive ground plane member including a first tapered portion and a second tapered portion, each of said first and second tapered portions respectively having opposing tapered edges that converge along a direction toward a central axis of said first aperture and a transverse edge connecting said opposing tapered edges at a point distal from said central axis, to define a bow-tie shape; and
at least a second elongated aperture formed in said conductive ground plane, an elongated edge of said second elongated aperture positioned adjacent to said transverse edge and separated from said transverse edge by a gap defined by a portion of said conductive ground plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A patch antenna for a wireless communications device, comprising:
-
a conductive ground plane member;
a first aperture provided in said conductive ground plane member including a first tapered portion and a second tapered portion, each of said first and second tapered portions respectively having opposing tapered edges that converge along a direction toward a central axis of said first aperture and a transverse edge connecting said opposing tapered edges at a point distal from said central axis, to define a bow-tie shape; and
at least one disrupting aperture formed in said conductive ground plane respectively positioned adjacent to each of said transverse edges, each said disrupting aperture separated from said transverse edge by a gap defined by a portion of said conductive ground plane, wherein said disrupting aperture produces a reactive loading effect. - View Dependent Claims (15, 16, 17, 18)
-
-
19. A patch antenna for a wireless communications device, comprising:
-
a conductive ground plane member;
a first aperture provided in said conductive ground plane member including a first tapered portion and a second tapered portion, each of said first and second tapered portions respectively having opposing tapered edges that converge along a direction toward a central axis of said first aperture and a transverse edge connecting said opposing tapered edges at a point distal from said central axis, to define a bow-tie shape;
at least a second elongated aperture formed in said conductive ground plane, an elongated edge of said second elongated aperture positioned adjacent to said transverse edge and separated from said transverse edge by a gap defined by a portion of said conductive ground plane;
wherein said antenna is operable on a fundamental frequency and a first harmonic of said fundamental frequency, with substantially co-located peak gain directions on said fundamental frequency and said first harmonic of said fundamental frequency. - View Dependent Claims (20)
-
Specification