Tactical radio transceiver with intermediate frequency (IF) filter package for narrowband and wideband signal waveforms
US8954025B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Apr 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2240/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A communications radio has an IF stage with an associated filter array. The array includes at least one narrowband filter whose passband is less than 3 MHz, at least one wideband filter whose passband is 3 MHz or greater, a first switch with a common pole connected to an input terminal of the array, a second switch with a common pole connected to an output terminal of the array, a third switch whose common pole is operatively connected to the input terminal, and a fourth switch whose common pole is operatively connected to the output terminal. The first and the second switches cooperate to insert a selected filter between the first and second terminals. The third and the fourth switches cooperate to insert the filter array into either a receive signal path when the radio is in a receive mode, or a transmit signal path when in a transmit mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.