Fork‐shaped patch printed ultra‐wideband slot antenna with dual band‐notched characteristics using metamaterial unit cells

2019 ◽  
Vol 29 (7) ◽  
pp. e21742 ◽  
Author(s):  
Bihui Xu ◽  
Yanwen Zhao ◽  
Li Gu ◽  
Zaiping Nie
Keyword(s):  
Ultra Wideband ◽  
Dual Band ◽  
Slot Antenna ◽  
Unit Cells

Ultra‐wideband tapered slot antenna with dual band‐notched characteristics

2014 ◽  
Vol 8 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Dae Heon Lee ◽  
Hae‐Yong Yang ◽  
Young‐Ki Cho
Keyword(s):  
Ultra Wideband ◽  
Dual Band ◽  
Slot Antenna

Time-domain analysis of compact dual band-notched slot antenna in indoor environments

2018 ◽  
Vol 10 (10) ◽  
pp. 1186-1195 ◽  
Author(s):  
Seyed Ramin Emadian ◽  
Javad Ahmadi-Shokouh
Keyword(s):  
Time Domain ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Dual Band ◽  
Slot Antenna ◽  
Back Side ◽  
Indoor Propagation ◽  
Propagation Channel ◽  
Channel Characteristics ◽  
Compact Size

AbstractFrequency- and time-domain characteristics as well as indoor propagation channel impulse response of a compact dual band-notched ultra-wideband (UWB) slot antenna are investigated in this paper. The antenna consists of a narrow rectangular radiation patch and a rectangular wide slot in the modified ground plane. A pair of L-shaped stubs are connected to the radiation patch to obtain band-notched property in WLAN band and a narrow straight stub is placed on the back side of the substrate to create band-notched characteristics in X-band downlink satellite communication system. Moreover, two small parasitic strips are added to the radiation patch to enhance the bandwidth (BW) of the antenna up to 14 GHz. A comprehensive study on time-domain and indoor propagation channel characteristics of the proposed antenna is also presented throughout the paper. A ray-tracing approach based on geometrical optics is applied to analyze the indoor channel characteristics. The designed antenna not only has a wide BW and compact size but also has appropriate radiation and time-domain characteristics over the antenna operating BW. The measured and simulated results are in good agreement. These advantages make the proposed antenna as a desirable option for UWB impulse radio applications.

Design of compact reconfigurable ultra‐wideband slot antenna with switchable single/dual band notch functions

2014 ◽  
Vol 8 (8) ◽  
pp. 541-548 ◽  
Author(s):  
Bahareh Badamchi ◽  
Javad Nourinia ◽  
Changiz Ghobadi ◽  
Arash Valizade Shahmirzadi
Keyword(s):  
Ultra Wideband ◽  
Dual Band ◽  
Slot Antenna

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

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.

scholarly journals A compact wide slot antenna with dual band-notch characteristic for ultra-wideband applications

2013 ◽  
Vol 100 (8) ◽  
pp. 1134-1146 ◽  
Author(s):  
Chengyuan Liu ◽  
Tao Jiang ◽  
Yingsong Li ◽  
Jing Zhang
Keyword(s):  
Ultra Wideband ◽  
Dual Band ◽  
Slot Antenna
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