PLANAR ANTENNA FOR MOBILE SATELLITE APPLICATIONS
First Claim
1. A microstrip patch antenna for mobile satellite communications comprising:
- a first electrically conducting ground plane having two slots;
at least one annular patch radiating element having a central axis;
at least one first dielectric layer disposed between the first electrically conducting ground plane and the patch radiating element;
two feed lines slot-coupled to the patch radiating element for providing signal energy in a contactless manner to or from the patch radiating element through the two slots;
a second dielectric layer disposed between the two feed lines and the first electrically conducting ground plane; and
a third dielectric layer disposed between a second ground plane and the two feed lines;
wherein the two slots are orthogonal with respect to one another on the first electrically conducting ground plane axis and configured to receive both left hand and right hand circular polarizations.
5 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a microstrip patch antenna for mobile satellite communications comprising a first electrically conducting ground plane having at least one opening, at least one patch radiating element, at least one first dielectric layer, disposed between the first electrically conducting ground plane and the patch radiating element and more particularly between the at least one opening and the patch radiating element, at least one feed line for providing signal energy in a contactless manner to or from the patch radiating element through the opening and a second dielectric layer disposed between the feed line and the first electrically conducting ground plane wherein the antenna further comprises a second ground plane and a third dielectric layer disposed between the second ground plane and the feed line.
26 Citations
17 Claims
-
1. A microstrip patch antenna for mobile satellite communications comprising:
-
a first electrically conducting ground plane having two slots; at least one annular patch radiating element having a central axis; at least one first dielectric layer disposed between the first electrically conducting ground plane and the patch radiating element; two feed lines slot-coupled to the patch radiating element for providing signal energy in a contactless manner to or from the patch radiating element through the two slots; a second dielectric layer disposed between the two feed lines and the first electrically conducting ground plane; and a third dielectric layer disposed between a second ground plane and the two feed lines; wherein the two slots are orthogonal with respect to one another on the first electrically conducting ground plane axis and configured to receive both left hand and right hand circular polarizations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A multi-system antenna for mobile communications comprising:
-
a first electrically conducting ground plane having two first slots and one second slot; an annular patch radiating element having a central axis; a circular patch radiating element concentrically arranged and coplanar with respect to the annular patch radiating element; at least one first dielectric layer disposed between the first electrically conducting ground plane and the annular and circular patch radiating elements; two first feed lines and one second feed line slot-coupled to the annular and circular patch radiating elements for communicating signal energy in a contactless manner with the annular and circular patch radiating elements respectively through the first and second slots; and a second dielectric layer disposed between the first and second feed lines and the first electrically conducting ground plane, wherein the two first slots are orthogonal with respect to one another on the first electrically conducting ground plane axis and configured to receive both left and right hand circular polarizations of a first application with the annular patch radiating element. - View Dependent Claims (15, 16, 17)
-
Specification