Integrated TCAS/transponder transmitter architecture
US11356134B1 · kind B1 · utility
1Cited by
14References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2021 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Jan 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/59
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmitter for an aircraft is disclosed. The transmitter comprises a first channel configured to transmit first radio frequency (RF) signals in a first direction and a second channel configured to transmit second RF signals in a second direction. A branchline coupler is communicatively coupled to the first channel and the second channel. The branchline coupler comprises one or more quarter wave transformers and a set of PIN diode switches configured to have a high impedance responsive to the transmitter being in an amplitude-based mode and a low impedance responsive to the transmitter being in a phase-based mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.