A Non-Magnetic RF Balun Designed at 128 MHz Centre frequency for 3 T MRI Scanners

Dianat, Ali; Attaran, Ali; Muscedere, Roberto; Chronik, Blaine A.

doi:10.1109/ccece47787.2020.9255767

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…3 Tesla (T) magnetic resonance imaging (MRI) scanner working at 128 MHz frequency is a vital medical diagnostic equipment that offers a non-invasive method of imaging with a high sensitivity [1][2][3][4][5][6][7]. Balun plays an important role in MRI scanner, which is used to implement signal conversion between balanced and unbalanced signals with the same magnitude but 180° phase difference.…”

Section: Introductionmentioning

confidence: 99%

Compact LTCC Balun using L-C Embraced Structure for 128 MHz 3T MRI Applications

Ma¹,

Tie²,

B.³

2022

RADIOENGINEERING

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A compact lumped-element balun is proposed for 128 MHz frequency 3 Tesla (T) magnetic resonance imaging (MRI) applications. The proposed L-C embraced structure places vertically-interdigital-capacitor (VIC) inside spiral inductor, thus three L-C elements only take up one inductor's area. Therefore, significant size reduction and integration increment are both achieved without increasing the number of substrate layers. The balun is built on a 10-layer thickness low temperature co-fired ceramic (LTCC) substrate and has the smallest reported size of only 0.007 × 0.008 × 0.0009 λ g . Moreover, the proposed balun also has a 2 nd -order harmonic suppression of 32 dB. Furthermore, comparisons and discussions are also implemented.

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Section: Introductionmentioning

confidence: 99%

Compact LTCC Balun using L-C Embraced Structure for 128 MHz 3T MRI Applications

Ma¹,

Tie²,

B.³

2022

RADIOENGINEERING

View full text Add to dashboard Cite

show abstract

Wideband and miniaturized lumped‐element low temperature co‐fired ceramic filter Using size reduced resonators for very high frequency applications

Zhou

et al. 2022

Int J RF Mic Comp-Aid Eng

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A wideband and miniaturized bandpass filter (BPF) is proposed using size reduced resonator (SRR) for the very high frequency band applications. The proposed SRR places vertically interdigital-capacitor inside spiral inductor, thus two L-C elements only take up one inductor's area. Therefore, significant size reduction and integration increment are both achieved without increasing the number of substrate layers. The BPF is built on a 10-layer thickness low temperature cofired ceramic substrate and has the smallest reported size of only 0.00 7 λ g Â 0.004 λ g Â 0.0005 λ g . Moreover, the BPF also achieved a wide fractional bandwidth of 97.2%, a low in-band insertion loss of only 0.7 dB, a great selectivity BW 20 dB /BW 3 dB of 1.23 and a wide stopband up to 2.2f 0 with 20 dB suppression. Furthermore, comparisons and discussions are also implemented.

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A Non-Magnetic RF Balun Designed at 128 MHz Centre frequency for 3 T MRI Scanners

Cited by 2 publications

References 12 publications

Compact LTCC Balun using L-C Embraced Structure for 128 MHz 3T MRI Applications

Compact LTCC Balun using L-C Embraced Structure for 128 MHz 3T MRI Applications

Wideband and miniaturized lumped‐element low temperature co‐fired ceramic filter Using size reduced resonators for very high frequency applications

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