Dual-frequency patch antennas
AssigneeTrimble Navigation Limited
InventorsGregory C. Wallace, John Atkinson
Life of this patent
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Abstract
A dual-frequency patch antenna includes a first conductive element configured to receive global navigation satellite system (GNSS) signals at a first frequency band, a second conductive element configured to receive GNSS signals at a second frequency band, and a ground plane. A first dielectric material is disposed between the first conductive element and the second conductive element, and a second dielectric material disposed between the second conductive element and the ground plane. The second dielectric material has a topside with an area at least as large as the topside of the ground plane.
Claims20
A dual-frequency patch antenna comprising:
- a first conductive element configured to receive global navigation satellite system (GNSS) signals at a first frequency band;
- a first dielectric material coupled to a backside of the first conductive element;
- a second conductive element coupled to a backside of the first dielectric material, the second conductive element configured to receive GNSS signals at a second frequency band, wherein the second conductive element has a topside with an area at least as large as a topside of the first conductive element;
- a second dielectric material coupled to a backside of the second conductive element;
- a ground plane coupled to a backside of the second dielectric material;
- a third dielectric material coupled to a backside of the ground plane;
- a routing and placement layer with circuitry coupled to a backside of the third dielectric material, the circuitry electrically coupled to at least one of the first conductive element or the second conductive element;
- and
- a digital cable coupled to the circuitry via the routing and placement layer, wherein the circuitry is configured to:
- provide frequency selection, down conversion, and digitization of the GNSS signals at the first frequency band and the GNSS signals at the second frequency band;
- and
- output digitized baseband signals, wherein the digital cable is configured to provide the digitized baseband signals to a soft GNSS receiver.
A dual-frequency patch antenna comprising:
- a first conductive element configured to receive global navigation satellite system (GNSS) signals at a first frequency band;
- a second conductive element configured to receive GNSS signals at a second frequency band;
- a ground plane;
- circuitry electrically coupled to at least one of the first conductive element or the second conductive element, the circuitry configured to provide at least frequency selection of the GNSS signals at the first frequency band and the GNSS signals at the second frequency band;
- a first dielectric material disposed between the first conductive element and the second conductive element;
- a second dielectric material disposed between the second conductive element and the ground plane, the second dielectric material having a topside with an area at least as large as a topside of the ground plane;
- a third dielectric material disposed between the ground plane and the circuitry;
- and
- an output coupled to the circuitry via the routing and placement layer, the output configured to provide at least filtered and amplified GNSS signals from the circuitry.
A dual-frequency patch antenna comprising:
- a first conductive element configured to receive global navigation satellite system (GNSS) signals at a first frequency band;
- a second conductive element configured to receive GNSS signals at a second frequency band;
- a ground plane;
- a first dielectric material disposed between the first conductive element and the second conductive element;
- and
- a second dielectric material disposed between the second conductive element and the ground plane, the second dielectric material having a topside with an area at least as large as the topside of the ground plane.
Dependencies are inferred from the claim text.