Five-port monopulse antenna feed structure with one dedicated transmit port
US4712110A · kind A · utility
8Cited by
17References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1985 |
| Grant date | Dec 8, 1987 |
| Priority date | — |
| Expiry date | Dec 26, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/525
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna feed structure for use with a parabolic reflector in amplitude-comparison monopulse radar applications employs a dedicated transmit feed centered within a four-port receive array of conventional element spacing to eliminate the need for a circulator or other transmit/receive device while retaining satisfactory receive array performance. Isolation pins placed around the transmit port act to decouple it from the receive ports, and a double waveguide run to the transmit port reduces uneven heating and related phase imbalance in adjacent receive waveguide runs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.