Broadband circular polarization arrangement for microstrip array antenna
US4866451A · kind A · utility
65Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1984 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Jun 25, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a circular polarization (CP) technique and a microstrip array antenna implementing this technique. Using four microstrip radiating elements with proper phasing of the excitation in a 2.times.2 array configuration, the technique averages out the cross-polarized component of the radiation, generating circular polarization of high purity. The technique is broadband and capable of dual-polarized operation. The resultant 2.times.2 array can be used either independently as a CP radiator or as the building subarray for a larger array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.