Multiband or multimode front end antenna switch
US7512388B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2005 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Feb 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-band communication device with a front end antenna switch module having a reduced number of control inputs is disclosed. Control over an antenna switch modules occurs via control inputs from a controller or processor to enable operation over multiple bands or under numerous different standards. In one embodiment an input/output port is configured to connect to an antenna and a diplexer is connected to the input/output port. In this embodiment, the diplexer is configured to pass outgoing signals to the antenna and direct incoming signal from the antenna to one of two or more paths. One or more switches are connected to the diplexer such that the one or more switches are responsive to two or fewer control signals. The switch are configured to selectively enable operation of the antenna switch module into transmit or receive mode. A filter bank may also be provided as part of the module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.