Please use this identifier to cite or link to this item:
http://repository.aaup.edu/jspui/handle/123456789/1365
Title: | Symmetrical and Asymmetrical Microstripline-based Transmit/Receive Switches for 7 Tesla Magnetic Resonance Imaging |
Authors: | salama, sanaa$AAUP$Palestinian Abuelhaija, Ashraf$Other$Other Baldawi, Tariq$Other$Other Saleh, Gameel $Other$Other |
Issue Date: | 12-Apr-2021 |
Publisher: | International Journal of Circuit Theory and Applications |
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. |
URI: | http://repository.aaup.edu/jspui/handle/123456789/1365 |
Appears in Collections: | Faculty & Staff Scientific Research publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
Admin Tools