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http://repository.aaup.edu/jspui/handle/123456789/1365
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DC Field | Value | Language |
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dc.contributor.author | salama, sanaa$AAUP$Palestinian | - |
dc.contributor.author | Abuelhaija, Ashraf$Other$Other | - |
dc.contributor.author | Baldawi, Tariq$Other$Other | - |
dc.contributor.author | Saleh, Gameel $Other$Other | - |
dc.date.accessioned | 2021-04-14T06:01:01Z | - |
dc.date.available | 2021-04-14T06:01:01Z | - |
dc.date.issued | 2021-04-12 | - |
dc.identifier.uri | http://repository.aaup.edu/jspui/handle/123456789/1365 | - |
dc.description.abstract | The transmit/receive (T/R) switch is an important device in magnetic resonance imaging scanners whenever T/R radio frequency coils are intended to be used. It is placed between transmit amplifiers and T/R radio frequency coils. The T/R switch adds loss to the RF transmit chain, reducing the delivered power to the coil and increasing the noise figure of the receive chain. Therefore, T/R switches should be designed for as low insertion loss as possible. In addition, they need to handle high power in transmit. In this article, three T/R switches for 7-Tesla magnetic resonance imaging scanners are designed using Eagle, and validated by simulation (HFSS, ANSYS) and measurement. Low reflection coefficients (<-20 dB), low insertion loss (≃0.3 dB), and high isolation (>40 dB) was demonstrated for the designed couplers. The fabricated microstripline-based switches were more robust than a design utiliz ing commercial couplers in terms of heat dissipation, high power capabilities, and lower insertion loss. | en_US |
dc.language.iso | en | en_US |
dc.publisher | International Journal of Circuit Theory and Applications | en_US |
dc.title | Symmetrical and Asymmetrical Microstripline-based Transmit/Receive Switches for 7 Tesla Magnetic Resonance Imaging | en_US |
dc.type | Article | en_US |
Appears in Collections: | Faculty & Staff Scientific Research publications |
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