Radio frequency electronic switch
US6487395B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1998 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Mar 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) switch (40) for use in a wireless communication system operated in a time delay division mode of operation. The switch includes a pair of PIN diodes (54 and 56) serially coupled between the transmitter and receiver paths of the communication system which share a common node (58) to which a bias voltage is provided. The bias voltage is switched between first and second voltage levels to alternately cause one and the other of the pin diodes to be forward biased while the other is reversed bias. In this manner the transmitter and receiver paths will be alternately shorted to alternating current ground while the other path is shorted to a common node to an antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.