| 8339327 |
Circularly-polarized antenna |
John L. Schadler |
2012-12-25 |
| 8159406 |
Phased-array antenna radiator for a super economical broadcast system |
John L. Schadler, Gary Lytle, Torbjorn Johnson |
2012-04-17 |
| 8115696 |
Phased-array antenna panel for a super economical broadcast system |
Torbjorn Johnson, Charles Michael Davison, Jr., John L. Schadler, Gary Lytle |
2012-02-14 |
| 8102326 |
Broadcast antenna ellipticity control apparatus and method |
John L. Schadler |
2012-01-24 |
| 7839351 |
Antenna system and method to transmit cross-polarized signals from a common radiator with low mutual coupling |
John L. Schadler, Richard I. Bibber, Jeffrey Brown |
2010-11-23 |
| 7710453 |
Method and apparatus for real time testing of DTV antenna transmitting systems in time domain under full power |
Michael Simon |
2010-05-04 |
| 7683849 |
System and method of producing a null free oblong azimuth pattern with a vertically polarized traveling wave antenna |
John L. Schadler |
2010-03-23 |
| 7633522 |
Method and apparatus for real time testing of DTV antenna transmitting systems in time domain under full power |
Michael Simon |
2009-12-15 |
| 7542004 |
Parasitic dipole for azimuth uniformity in broadband antennas apparatus and method |
John L. Schadler |
2009-06-02 |
| 7298396 |
Apparatus and method for monitoring transmission systems using embedded test signals |
Jeffrey Brown |
2007-11-20 |
| 7209091 |
Vertically polarized panel antenna system and method |
John L. Schadler |
2007-04-24 |
| 7081860 |
Folded broadcast panel antenna system and method |
John L. Schadler |
2006-07-25 |
| 7034545 |
Apparatus and method for monitoring transmission systems using off-frequency signals |
Jeffrey Brown, John L. Schadler, William A. DeCormier |
2006-04-25 |
| 7015948 |
Method and apparatus for real time testing of DTV antenna transmitting systems in time domain under full power |
— |
2006-03-21 |
| 6677916 |
Common aperture UHF/VHF antenna |
John L. Schadler |
2004-01-13 |
| 6650300 |
Common aperture UHF/horizontally polarized low-and mid-band VHF antenna |
John L. Schadler |
2003-11-18 |