Zaiping Nie

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In this paper, the problem of enhancing the detection performance of detector for target in partially homogeneous background is addressed. Based on a general measurement model, a new constant false alarm rate (CFAR) adaptive matched detector (AMD) is proposed through a two-step design procedure. The detection performance of the AMD is theoretically(More)
—In this paper, a novel planar inverted-F antenna (PIFA) with slotted ground structure is proposed for multiband mobile communication application. The multimode performance is applied for multiband operation in our design. The proposed antenna has good impedance matching characteristics for GSM850/900, DCS1800/1900, LTE2300/2500, IEEE 802.11a/b. The(More)
Microwave-induced thermoacoustic tomography (MITAT) is a hybrid method which constructs images with ultrasound spatial resolution while exploiting dielectric contrast at microwave frequency. It has great potential in biomedical imaging especially in early breast cancer detection. The detection of early stage breast tumor in MITAT is challenged by the(More)
The design of a hemispheric dielectric lens antenna using the effective medium theories (EMTs) is presented in this paper. The hemispheric dielectric lens antenna is made of low loss Poly Tetra Fluoro Ethylene (PTFE) with cylindrical air-filled holes drilled. In order to realize the necessary lens dielectric constant the lens antenna is well described by(More)