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Creators/Authors contains: "Popović, Zoya"

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  1. ; (, IEEE Microwave and Wireless Technology Letters)
    In this letter, we present a dual-feed near-field antenna (NFA) with dierent sensing depths for noninvasive internal body temperature measurements using microwave radiometry. The two feeds correspond to dfferent spatial power densities in the tissues, providing more information for temperature estimation. An on-chip 1.4-GHz Dicke radiometer with a switch and low-noise, high-gain amplifier is designed using enhancement-mode 0.18-um InGaAs technology. The radiometer shows 45 dB of gain and 1.26-dB noise figure (NF) at 1.4 GHz. The Dicke radiometer includes an SP3T switch connected to a noise source and the two feeds of the NFA. Measurements are performed on a skin-muscle phantom to monitor temperature. The temperature information obtained from the two antenna feeds is used to estimate the temperature of both the skin (20 deg C) and muscle (34 deg C) phantoms with average errors around 1:58 deg C and 0:7 deg C, respectively. The results show usefulness of spatial pattern diversity for estimating layered tissue temperatures. 
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    Free, publicly-accessible full text available June 1, 2026
  2. ; (, IEEE Microwave Magazine)
    Free, publicly-accessible full text available May 1, 2026
  3. ; ; (, IEEE)
    Free, publicly-accessible full text available April 14, 2026
  4. ; ; ; ; ; (, IEEE Transactions on Microwave Theory and Techniques)
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  5. ; ; (, IEEE)
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  9. ; ; ; ; ; ; (, Proceedings of the IEEE)
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  10. ; ; ; (, IEEE Transactions on Microwave Theory and Techniques)
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