Titlebook: Antipodal Vivaldi Antennas for Microwave Imaging of Construction Materials and Structures; Mahdi Moosazadeh Book 2019 Springer Nature Swit

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Metallic Waveguides and Resonant Cavities, to further enhance antenna gain. The proposed antenna has been applied for microwave imaging of high-loss materials such as concrete. The capability of the proposed antenna for UWB imaging has been demonstrated for the detection of voids inside concrete.

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Antipodal Vivaldi Antenna with Regular Triangular Shaped Slits for Microwave Imaging of Concrete Maased specimens is demonstrated to highlight the capability of the proposed antenna with the imaging system for the detection of flaws such as void inside construction materials with high-range resolution (e.g. a few millimetres in concrete) and deep penetration depth and propagation path (e.g. more than 200 mm in two ways in concrete).

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Book 2019damages in composite construction materials and structures using their microwave and millimeter wave imaging. The author examines the challenges of applying the UWB microwave technique in that the technique is dependent on the operating frequency used for the specified material under test. In this c

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,Microwave and Millimetre Wave Antipodal Vivaldi Antenna with Periodic Slit-Edge Technique and the?Tating bandwidth from 3.4 to 40 GHz is presented in this chapter. It includes periodic slit-edge technique and trapezoid-shaped dielectric lens as an extension of substrate. Applicability of the proposed AVA for UWB imaging of construction materials and structures for non-destructive testing and eval

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Antipodal Vivaldi Antenna with Regular Triangular Shaped Slits for Microwave Imaging of Concrete Mabased specimens is presented in this chapter. To extend the low end of frequency band of the conventional antenna, inner edges of the top and bottom radiators of the antenna have been bent. To enhance gain at lower frequencies, regular triangular slit technique was applied to the antenna. Finally, a

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Miniaturised Antipodal Vivaldi Antenna and Its Application for Detection of Void Inside Concrete Spnted in this chapter. It includes bending technique on inner edges of radiators to lower operating frequency band to 1 GHz. Regular slits have been employed in edges of radiators to enhance gain at low frequencies. The half-elliptical shaped dielectric lens as an extension of substrate has been used

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Comb-Shaped Slit Antipodal Vivaldi Antenna and Its Application for Detection of Void Inside Concretof the top and bottom radiators to lower cut-off frequency of conventional AVA and to enhance antenna gain at low frequencies. The proposed antenna has impedance bandwidth of 1.65–18?GHz, high gain at low frequencies (6.7?dB at 1.65 GHz and 9.1?dB at 2?GHz) and front-to-back ratio of 42?dB at 13.5 G