Microstrip antenna
AssigneeHazeltine Corporation
InventorAlfred R. Lopez
Life of this patent
Estimating the term…
Abstract
A conductive sheet having slots therein is located between dielectric sheets having microstrip feed networks printed thereon forming a multilayered structure which is spaced from a ground plane by a dielectric substrate and covered by another dielectric substrate having a dielectric skin thereon. The slots comprise an array of horizontal slots perpendicular to vertical slots. One of the dielectric sheets and the microstrip feed network printed thereon is associated with the horizontal slots and the other dielectric sheet and the microstrip feed network printed thereon is associated with the vertical slots.
Claims23
A dual polarized microstrip antenna comprising:
- means for radiating an rf signal, said radiating means having first and second opposing surfaces forming first and second intersecting slots having different orientations, said first and second slots forming a plurality of cross slots;
- a first dielectric substrate having first and second opposing surfaces, the first surface of said radiating means being adjacent the first surface of said first dielectric substrate;
- a second dielectric substrate having first and second opposing surfaces, the second surface of said second dielectric substrate being adjacent the second surface of said means for radiating;
- a first microstrip feed network having first and second opposing surfaces, the second surface of said first microstrip feed network associated with said cross slots and being adjacent the second surface of said first dielectric substrate;
- and
- a second microstrip feed network associated with said cross slots and having first and second opposing surfaces, the first surface of said second microstrip feed network being adjacent the first surface of said second dielectric substrate.
A microstrip antenna comprising:
- a first dielectric substrate having first and second opposing surfaces;
- means for radiating an rf signal, said means having first and second opposing surfaces and first and second slots, the first surface of said radiating means being adjacent the first surface of said first dielectric substrate;
- a first microstrip feed network associated with said first slot and having a first port and first and second opposing surfaces, the second surface of said first microstrip feed network being adjacent the second surface of said first dielectric substrate;
- a second dielectric substrate having first and second opposing surfaces, the second surface of said second dielectric substrate being adjacent the second surface of said means for radiating;
- and
- a second microstrip feed network associated with said second slot and having a first port and first and second opposing surfaces, the first surface of said second microstrip feed network being adjacent the first surface of said second dielectric substrate.
A dual polarized microstrip antenna comprising:
- means for radiating an rf signal, said radiating means having first and second opposing surfaces forming first and second intersecting slots having different orientations, said first and second slots forming a plurality of cross-slots, said first slot having a first portion projecting from a side of the second slot and a second portion projecting from another side of the second slot;
- and
- means for feeding said first slot with a first signal and for feeding said second slot with a second signal, and means for feeding including a microstrip feed network having a first feed associated with said first portion and a second feed associated with said second portion;
- first means for terminating the first feed into a short circuit;
- and
- second means for terminating the second feed into a short circuit whereby said first slots radiate a signal having a first polarity and said slots radiate a signal having a second polarity different from said first plurality.
Dependencies are inferred from the claim text.