Systems and methods for a wireless modem assembly
US7023909B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2001 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Feb 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A RF wireless modem with an integral antenna. The antenna is a compact, horizontally-polarized, balanced, multi-element, directional antenna with integral balun, constructed on one end of a printed wire board (PWB) and radiating preferably away from the modem circuitry on the remaining portions of PWB. The antenna includes a matching network for matching an impedance of the antenna with an impedance of an unbalanced connection and a balun for transforming a RF transmit signal received from the unbalanced connection into a balanced RF transmit signal. The antenna also includes a radiator for transmitting the balanced RF transmit signal and a reflector for reflecting at least some of the energy of the transmitted signal away from the modem circuitry. The antenna can also include a director for directing the RF transmit signal in a desired direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.