Ultra-Wideband Monostatic Antenna for behind the Wall Detection

<span>This article introduces an ultra-wideband (UWB) shifted arc antenna, designed using Rogers RT-5880 Duroid substrate for the human detection behind the wall. The frequency for this proposed antenna ranges from 2.8 - 15.6 GHz with the gain of around 6.05 dB. A high gain for antenna has been achieved by the implementation of defected ground structure (DGS) method to make it a suitable configuration for through wall detection applications. For the verification of through wall detection configuration, a simulation-based experiment using ground penetrating radar (GPR) technology has been conducted. The results showed that proposed single antenna can act as a monostatic transceiver in order to detect human skin behind the concrete wall. Later, the reflections received from the target have been analyzed to detect and identify the antenna, wall and target for distance calculation.</span>

Download Full-text

Bistatic configurational analysis of ultra-wideband antenna for detection applications

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v13.i2.pp702-707 ◽

2019 ◽

Vol 13 (2) ◽

pp. 702

Author(s):

Jawab Ali ◽

Noorsaliza Abdullah ◽

Roshayati Yahya ◽

Ezri Mohd ◽

Ariffuddin Joret ◽

...

Keyword(s):

Human Skin ◽

Ground Penetrating Radar ◽

Ultra Wideband ◽

Impedance Bandwidth ◽

Defected Ground Structure ◽

Ground Structure ◽

Detection Model ◽

Configurational Analysis ◽

Compact Design ◽

Ground Penetrating

<span>With the advancement in technology, antennae are becoming a popular components to be used in various applications. Following the trend, a compact design of ultra-wideband (UWB) bistatic configuration of the antenna is presented in this paper using ground penetrating radar (GPR) technology specifically for detection applications. The antenna is first designed and simulated using defected ground structure (DGS) for impedance bandwidth with the obtained gain of around 6.2 dB and return losses from 3-16 GHz. Later the complete detection model is aimed to study and for this purpose CST is used to model human skin and performed an experiment based on antennas i.e. transmitter and receiver, obstacle and target, to study and analyze the received antenna reflections for detection purpose.</span>

Download Full-text

Ultra-wideband and high gain antipodal tapered slot antenna with planar metamaterial lens

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078721000878 ◽

2021 ◽

pp. 1-11

Author(s):

Ziye Wang ◽

Zhengwei Yang ◽

Xiao Zhao ◽

Linyan Guo ◽

Minjie Guo

Keyword(s):

Ground Penetrating Radar ◽

Imaging System ◽

Single Layer ◽

High Gain ◽

Ultra Wideband ◽

Slot Antenna ◽

Impedance Bandwidth ◽

Planar Lens ◽

Unit Cells ◽

Ground Penetrating

Abstract To solve the problems of low gain, narrow bandwidth, and poor radiation directivity of conventional ground penetrating radar antenna, this paper proposes an ultra-wideband and high-gain antipodal tapered slot antenna (ATSA) with planar metamaterial lens. As a constituent part of this lens, a new non-resonant metamaterial unit cell is introduced and analyzed by the full-wave simulation tool. The single-layer planar lens composed of the designed unit cells with different sizes is placed in the maximum radiation direction of the ATSA to greatly enhance its radiation capability. The proposed planar lens antenna has a wide impedance bandwidth of 107.4% (2.41–8 GHz) and −3 dB gain bandwidth of 54.5% (4–7 GHz), respectively. The gain increases averagely by 6.0 dB in the whole operating frequency band, and the peck gain reaches 15.4 dBi at 5.5 GHz. And its excellent performance shows a high application prospect in ground penetrating radar and microwave imaging system.

Download Full-text