scholarly journals Study of compact planar antennas for multi and wide band applications

2015 ◽  
Author(s):  
Manisha Dhirendra Mujumdar
2006 ◽  
Vol 55 (4) ◽  
pp. 1425-1435 ◽  
Author(s):  
B. Al-Khateeb ◽  
V. Rabinovich ◽  
B. Oakley ◽  
N. Alexandrov

2015 ◽  
Vol 8 (3) ◽  
pp. 623-631
Author(s):  
Amna Mir ◽  
Junsheng Yu ◽  
Xiaodong Chen ◽  
Ishtiaq Ahmad

Wide band circular polarized (CP) antennas behind extended hemispherical lenses suitable for polarization sensitive THz detector and wireless communication have been designed and characterized using numerical simulation. Two novel, compact and CP dipole antennas are designed and studied for this purpose. CP property of planar antennas is achieved by geometrical modifications of antennas without any complicated feeding structure. Due to compact dimensions, wideband performance and CP behavior, these designs have applications in circular dichroism (CD) spectroscopy and terahertz detectors. This numerical study deals with polarization diversity with substrate lens, effect of off axis displacement on CP behavior of lens antenna which determines number of pixels for any application, far field patterns variation due to lens's internal reflection, directivity variation attributed to internal reflection and losses. Radiation efficiency variation of antenna by antenna dimensions is also studied carefully to design appropriate lens from application's point of view. Off axis performance of antenna on hemisphere lens is also studied and redesigning of antenna by some geometric modification has been carried out to improve far field patterns.


2019 ◽  
Vol 62 (1) ◽  
pp. 200-209 ◽  
Author(s):  
Sudeep Baudha ◽  
Amartya Basak ◽  
Mayank Manocha ◽  
Manish V. Yadav

2008 ◽  
Vol 50 (4) ◽  
pp. 1124-1126 ◽  
Author(s):  
Gyoo-Soo Chae ◽  
Joong-Soo Lim ◽  
Min-Nyun Kim

2019 ◽  
Vol 9 (3) ◽  
pp. 4200-4202
Author(s):  
H. Alsaif

This paper presents a compact planar antenna with extreme wide band. The antenna is designed to cover the entire lower 5th generation operating bands ranging from 2.32GHz to more than 12GHz. This band also covers the IEEE 802.11 a/b/g/n/ac. The patch geometry has been simulated using an industrial standard simulation software called CST MWS. The monopole is miniaturized with a total size of 23x24x1.2mm3. The radiator and the ground plane are printed on a substrate of Rogers Duriod RT 5880 with relative permittivity of 2.2 and loss tangent of 0.00009. The simulated reflection coefficient and radiation pattern results are presented. S11 parameter for the designed antenna is less that -10dB over the operating band, with lowest value of -32.5dB at 2.85GHz. The radiation pattern is presented at the two orthogonal planes, elevation (E plane) and azimuth (H plane). Simulated results show that the antenna is appropriate of lower 5G bands application and several other wireless systems.


2017 ◽  
Vol 59 (12) ◽  
pp. 3189-3197 ◽  
Author(s):  
Ali Noraei Yeganeh ◽  
Ahmad Mahan ◽  
Seyed Hassan Sedighy ◽  
Somayyeh Chamaani

2020 ◽  
Vol 7 (2) ◽  
pp. 237-241
Author(s):  
Aicha Mohameden ◽  
Mohamed Haiballa ◽  
Senad Mahmoud ◽  
Sami Badra ◽  
Yassine Beddiaf ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document