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US 11,888,242 B2Granted
Stacked patch antennas using dielectric substrates with patterned cavities
AssigneeNovAtel Inc.
InventorNing Yang
Life of this patent
Estimating the term…
Abstract
A GNSS RHCP stacked patch antenna with wide dual band, high efficiency and small size is made of a molded high-permittivity material, such as ceramics, with a patterned cavity in the dielectric substrate. The perforated cavities in the substrate reduce the effective dielectric constant, increase the bandwidth and efficiency. The high-order modes can be manipulated through the design of cavities.
Claims20
An antenna comprising:
- a first metal layer disposed on a first surface of a first substrate;
- a second metal layer disposed between a second surface of the first substrate and a first surface of a second substrate;
- wherein the first substrate has one or more first cavities, where each of the one or more first cavities does not extend through an entirety of the first substrate to reach the first metal layer:
- wherein the second substrate has one or more second cavities, where each of the one or more second cavities does not extend through an entirety of the second substrate to reach the second metal layer;
- and
- wherein a bandwidth of the antenna is configured to be modified by varying one or more of (1) positions of the one or more first cavities or the one or more second cavities, (2) sizes of the one or more first cavities or the one or more second cavities, or (3) patterns of the one or more first cavities or the one or more second cavities.
3 more elements
An antenna comprising:
- a first metal layer disposed on a first surface of a first dielectric substrate;
- a second metal layer disposed between a second surface of the first dielectric substrate and a first surface of a second dielectric substrate, wherein a second surface of the second dielectric substrate is opposite the first surface of the second dielectric substrate;
- wherein the first dielectric substrate includes one or more first cavities, each of the one or more first cavities extending from the second surface of the first dielectric substrate to a first selected depth, through the first dielectric substrate, that does not reach the first surface of the first dielectric substrate;
- wherein the second dielectric substrate includes one or more second cavities, each of the one or more second cavities extending from the second surface of the second dielectric substrate, that does not reach the first surface of the second dielectric substrate;
- and
- where (1) positions of the one or more first or second cavities are configured to be modified, or (2) a sizes of the one or more first or second cavities are configured to be modified.
3 more elements
An antenna comprising:
- a first metal layer disposed on a first surface of a first substrate including one or more first air cavities that do not extend through an entirety of the first substrate;
- a second metal layer disposed between a second surface of the first substrate and a first surface of a second substrate including one or more second air cavities that do not extend through an entirety of the second substrate;
- wherein (1) positions of the one or more first or second air cavities are configured to be modified, or (2) sizes of the one or more first or second air cavities are configured to be modified.
Dependencies are inferred from the claim text.