Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887054 | Compact microstrip latching reciprocal phase shifter | Richard A. Stern | 1989-12-12 |
| 4881052 | Millimeter wave microstrip nonreciprocal phase shifter | Richard A. Stern | 1989-11-14 |
| 4879562 | Slotted microstrip antenna with ferrite coating | Richard A. Stern | 1989-11-07 |
| 4862117 | Compact millimeter wave microstrip circulator | Richard A. Stern | 1989-08-29 |
| 4845449 | Millimeter wave microstrip modulator/switch | Richard A. Stern | 1989-07-04 |
| 4839659 | Microstrip phase scan antenna array | Richard A. Stern | 1989-06-13 |
| H639 | Method of making a ferrite element | Richard A. Stern | 1989-06-06 |
| 4816787 | Millimeter wave microstrip phase shifter | Richard A. Stern | 1989-03-28 |
| 4806886 | Microstrip resonance isolator | Richard A. Stern | 1989-02-21 |