Reconfigurable RF receiver using compact distributed switch matrix for array coils
- Authors
- Lee, H. L.
- Issue Date
- Feb-2019
- Publisher
- INST ENGINEERING TECHNOLOGY-IET
- Citation
- ELECTRONICS LETTERS, v.55, no.3, pp 137 - +
- Journal Title
- ELECTRONICS LETTERS
- Volume
- 55
- Number
- 3
- Start Page
- 137
- End Page
- +
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/18236
- DOI
- 10.1049/el.2018.6579
- ISSN
- 0013-5194
1350-911X
- Abstract
- Magnetic resonance (MR) signals captured by RF array coils should be delivered to analogue-to-digital converter (ADC) channels through an independent receiver (Rx) circuitry for precise MRI process. Since different types of RF coils should be utilised by a fixed port configuration on a patient table with a limited number of ADC channels, a highly flexible Rx front-end design is necessary. In this Letter, a compact distributed switch matrix structure for multi-channel RF coil Rx is proposed for supporting different types of array coils with small circuit size and sufficient reconfigurability. The proposed structure is configured by a multiple number of unit matrix cells consisting of a single double pole double throw and two single pole double throw RF switches to control the pathways of received MR signals. The proposed structure was implemented and verified at 9.4-Tesla (9.4 T) MR frequency (400 MHz) by comparing different RF path losses.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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