Device at antenna systems for generating radio waves
US5654722A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 11, 1995 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Dec 11, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/528
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device at antenna systems for generating radio waves, including a supporting structure mounting at least one main radiator (3) for transmitting radio waves and where high frequency electric currents are generated in the supporting structure when the main radiator (3) is transmitting the radio waves. In order to improve the range of the main radiator (3) and at the same time reduce its backward radiation, the supporting structure includes a secondary radiator (14) for each main radiator (3). The secondary radiator (14) has at least one break portion (12) for interrupting or breaking the high frequency currents generated therein and through the thereby interrupted flow of the high frequency currents in the supporting structure reduce deviations from the desired range and/or direction of the radio waves transmitted by the main radiator (3). The secondary radiator (14) includes a connecting means (13) provided to connect portions of the supporting structure located on opposite sides of the break portion (12), whereby the connecting means (13) is provided to impart a flow path to the high frequency currents flowing through the supporting structure such that th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.