Electronic goniometer
Abstract
Abstract IN A HIGH POWER ELECTRONIC GONIMETER, A CARRIER FREQUENCY SIGNAL AND A MODULATING SIGNAL ARE DIRECTLY CONNECTED TO A FIRST LOW POWER BALANCED MODULATOR AND INDIRECTLY CONNECTED, VIA SEPARATE 90* PHASE SHIFTERS, TO A SECOND LOW POWER BALANCED MODULATOR. THE OUTPUT SIGNALS OF SAID MODULATORS ARE ADDED AND SUBTRACTED IN A HYBRID RING AND SUBSEQUENTLY SEPARATELY AMPLIFIED. THE AMPLIFIED SIGNALS ARE RECOMBINED IN A SECOND HYBRID RING, WHICH HAS A 90% PHASE SHIFTER IN ONE OF ITS OUTPUT ARMS, TO PROVIDE PROPERLY PHASED OUTPUT SIGNALS. IN ANOTHER EMBODIMENT, A FEEDBACK ARRANGEMENT IS PROVIDED TO MAIN- TAIN AN AMPLITUDE MODULATED TYPE RELATIONSHIP BETWEEN THE CARRIER FREQUENCY SIGNAL AND THE GONIOMETER OUTPUTS.
Inventors
- 👤 Gunter Hofgen
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |