Wireless handset using a slot antenna
US6462714B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Feb 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/106
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In order to make a wireless handset smaller, a novel slot antenna is provided which can simplify the manufacture process and can be connected to a tunable circuit. A slot is disposed in a narrow side surface of a conductive cube, and a power supply conductor is arranged in the slot so as to intersect the slot. A variable impedance circuit is connected between conductors on opposite edges of the slot in a position at a constant distance from one of the ends of the slot. The control signal varies impedance of the variable impedance circuit so as to control the resonant frequency of the antenna. Transmit/receive antennas are connected by a support so as to align the directions of the main polarizations, and then are arranged on the circuit board of the wireless handset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.