Compact planar microstrip antenna
US6369760B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Sep 19, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0442
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A first and a second conductive patch of a compact planar microstrip antenna are connected at a junction point to shorten the length of the impedance transition from the center point, where the wave impedance vanishes, to the patch edge, where the impedance becomes very large. The second conductive patch is wider than the first conductive patch and one end of the first conductive patch is shorted with the ground plane. The effective impedance to be satisfied by the narrower strip at the junction is greatly reduced by the presence of the junction of two different patches, which decreases the size of the antenna greatly for the required frequency range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.