Transmit/receive switching circuitry with improved radio frequency isolation
US10094895B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2013 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Jan 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transmit/receive switching circuitry (40; 48) for a magnetic resonance radio frequency antenna (M) for use in an magnetic resonance imaging system (10), the transmit/receive switching circuitry comprising: -a radio frequency input transmission line (TX) provided for transmitting radio frequency power to the magnetic resonance radio frequency antenna (M) and a radio frequency output transmission line (RX) provided for transferring away magnetic resonance signals received by the magnetic resonance radio frequency antenna (M) at a magnetic resonance frequency from the magnetic resonance radio frequency antenna (M);—a parallel resonant circuit (42) with a resonance frequency that is substantially equal to the magnetic resonance frequency, and that is connected in parallel to the magnetic resonance radio frequency antenna (M) with regard to the radio frequency input transmission line (TX),—a series resonant circuit (44) with a resonance frequency that is substantially equal to the magnetic resonance frequency,and that is connected in series between the radio frequency input transmission line (TX) and the radio frequency output transmission line (RX); for providing improved radio frequ…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.