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access icon free Performance of ultra-wide band DCBLNA with suspended strip line radiator for human breast cancer diagnosis medical imaging application

  • Author(s): Gunjan Mittal Roy 1 ; Binod Kumar Kanaujia 2 ; Santanu Dwari 1 ; Sandeep Kumar 3 ; Hanjung Song 4
    • View affiliations
  • Source: Volume 14, Issue 8, November 2020, p. 1228 – 1234
    DOI:  10.1049/iet-cds.2019.0207 , Print ISSN 1751-858X, Online ISSN 1751-8598
© The Institution of Engineering and Technology
Received 15/05/2019, Accepted 24/06/2020, Revised 04/04/2020, Published 16/10/2020

This study presents the performance of differential cascode balun low noise amplifier (DCBLNA) with ultra-wideband (UWB) for human breast cancer diagnosis. The proposed DCBLNA design-I with bulky spiral inductors achieves insufficient bandwidth with large power consumption of 10.8 mW. To attain the proper UWB band of operation, suspended strip line (SSLIN) radiators have employed in the proposed design-I. The performance of SSLIN is evaluated in terms of line capacitance and characteristic impedance by optimising its width. It is observed that best 50 Ωn-II. DCBLNA design-II using SSLIN have achieving a desired band of operation ranging from 1.5 to 15.7 GHz and best NF of 0.5 dB. The gain and phase imperfections are simulated to characterise balun networks. The smallest gain imperfection achieved is 0.1 dB at 10 GHz while the simulated phase imperfection turns out to be sufficiently good with 2.35° at 8 GHz. The proposed DCBLNA design-II is implemented and fabricated using RFCMOS 45 nm Taiwan Semiconductor Manufacturing Company (TSMC) process under commercial conditions. The highest figure of merit comes out to be 3.2 that ensures good accuracy of medical imaging for breast cancer diagnosis.

Inspec keywords: low noise amplifiers; differential amplifiers; baluns; cancer; microwave amplifiers; ultra wideband technology; strip lines; biomedical imaging

Other keywords: power losses suppression; SSLIN radiator; line capacitance; size 45.0 nm; DCBLNA design-I; ultra-wide band DCBLNA performance; commercial conditions; differential cascode balun low noise amplifier; frequency 1.5 GHz to 15.7 GHz; size 0.25 mm; phase imperfections; noise figure 0.5 dB; ultra-wideband radio-frequency; DCBLNA design-II; characteristic impedance; SSLIN width; RF TSMC complementary metal oxide semiconductor process; human breast cancer diagnosis medical imaging application; simulated phase imperfection; gain 0.1 dB; gain imperfection; resistance 50 ohm; power 10.8 mW; balun networks; suspended strip line radiator; power consumption; bulky spiral inductors

Subjects: Microwave circuits and devices; Amplifiers; Waveguides and microwave transmission lines; Waveguide and microwave transmission line components; Biomedical measurement and imaging

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