Linear-to-circular polarizers using cascaded sheet impedances and cascaded waveplates
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 17, 2020
Grant Date -
Jun 6, 2019
app pub date -
Nov 6, 2018
filing date -
Dec 5, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ultra-wideband linear-to-circular polarizer is disclosed. In accordance with embodiments of the invention, the polarizer includes a plurality of cascaded waveplates having biaxial permittivity or cascaded anisotropic sheet impedances. Each waveplate/sheet has a principal axis rotated at different angles relative to an adjacent waveplate/sheet about a z-axis of a 3-dimensional x, y, z coordinate system. Each waveplate is composed of a unit cell of an artificial anisotropic dielectric. Each sheet impedance is composed of an anisotropic metallic pattern. The polarizer further includes impedance matching layers disposed adjacent the cascaded waveplates/sheets.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2018 Application Filing Year
- H01P Class
- 747 Applications Filed
- 617 Patents Issued To-Date
- 82.60 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H01P Class
- 49.49 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 17, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 17, 2032 |
