| 6014372 |
Antenna beam congruency system for spacecraft cellular communications system |
Edward Jay Kent, Thaddeus Hawkes |
2000-01-11 |
| 5543809 |
Reflectarray antenna for communication satellite frequency re-use applications |
— |
1996-08-06 |
| 5355512 |
Uplink null intrusion rejection for satellite communications systems |
— |
1994-10-11 |
| 5333001 |
Multifrequency antenna array |
— |
1994-07-26 |
| 5280297 |
Active reflectarray antenna for communication satellite frequency re-use |
— |
1994-01-18 |
| 4996535 |
Shortened dual-mode horn antenna |
— |
1991-02-26 |
| 4792770 |
Waveguide directional coupler with multiple coupled outputs |
Sharad V. Parekh, Seymour Shapiro |
1988-12-20 |
| 4757326 |
Box horn antenna with linearized aperture distribution in two polarizations |
— |
1988-07-12 |
| 4691205 |
Beam forming network for circularly polarized shaped beam antenna system |
— |
1987-09-01 |
| 4679011 |
Waveguide directional coupler family with a common housing having different sets of conductive block insertable therein |
Krishna Praba |
1987-07-07 |
| 4471361 |
Phase reconfigurable beam antenna system |
Hendrick H. Soule, Jr. |
1984-09-11 |
| 4246583 |
Multimode feed for a monopulse radar |
James J. CAMPBELL |
1981-01-20 |
