Radiation pattern of reconfigurable antenna design for portable device applications

2018 ◽  
Vol 35 (2) ◽  
pp. 153-168
Author(s):  
Rekha S. KADAM, Anju KULKARNI KADAM ◽  
Anju KULKARNI
Keyword(s):  
Radiation Pattern ◽  
Portable Device ◽  
Antenna Design ◽  
Reconfigurable Antenna ◽  
Device Applications

A Reconfigurable Monopole Antenna with Fluorescent Tubes by Using Plasma Windowing Concepts at 4.9GHz

2014 ◽  
Vol 905 ◽  
pp. 432-435 ◽  
Author(s):  
Hajar Ja’afar ◽  
M.T. Ali ◽  
A.N. Dagang ◽  
H.M. Zali ◽  
N.A. Halili
Keyword(s):  
Radiation Pattern ◽  
Plasma Column ◽  
Return Loss ◽  
Plasma Frequency ◽  
Antenna Design ◽  
Mercury Vapour ◽  
Reconfigurable Antenna ◽  
Antenna Structure ◽  
Argon Gas ◽  
Fluorescent Lamps

This research aimed at investigating the performance of plasma windowing concept in terms of radiation pattern, gain and return loss. The antenna structure consists of 12 tubes of commercial fluorescent lamps that containing the mixture of mercury vapour and argon gas which upon electrification, forms plasma. After get sufficient voltage the gas inside the fluorescent tube will ionize to plasma and formed plasma column. When all of the tubes surrounding the antenna are electrified, the radiation is trapped inside. By leaving one or more of the tubes in a non-electrified state, apertures are formed in the plasma shield which allows radiation to escape. The plasma frequency in this experiment is equal to 5.634e11 Hz. This antenna design at 4.9 GHz. The advantages from this research, the design and construction of plasma antenna with fluorescent tubes can be beneficial in term of advancement in antennas technology especially in reconfigurable antenna.

Miniature and near-3D omnidirectional radiation pattern RFID tag antenna design

2009 ◽  
Vol 45 (18) ◽  
pp. 923 ◽  
Author(s):  
S.-L. Chen ◽  
K.-H. Lin ◽  
R. Mittra
Keyword(s):  
Radiation Pattern ◽  
Antenna Design ◽  
Rfid Tag

scholarly journals Optical characterization of high and low resistive silicon samples suitable for reconfigurable antenna design

2018 ◽  
Vol 61 (1) ◽  
pp. 107-110 ◽  
Author(s):  
Abdul Ali ◽  
Kagan Topalli ◽  
Mehrab Ramzan ◽  
Talha Masood Khan ◽  
Ayhan Altintas ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Antenna Design ◽  
Reconfigurable Antenna

scholarly journals Radiation Pattern Reconfigurable Antenna for IoT Devices

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Zakaria Mahlaoui ◽  
Eva Antonino-Daviu ◽  
Miguel Ferrando-Bataller
Keyword(s):  
Radiation Pattern ◽  
Reconfigurable Antenna ◽  
Characteristic Mode ◽  
Pin Diodes ◽  
Iot Applications ◽  
Different Dimensions ◽  
Iot Devices ◽  
Characteristic Mode Theory ◽  
Good Agreement ◽  
Metallic Plates

Based on the characteristic mode theory, a versatile radiation pattern reconfigurable antenna is proposed. The analysis starts from two parallel metallic plates with the same and different dimensions. By means of two PIN diodes, the size of one of the parallel metallic plates can be modified and consequently the behavior of the radiation pattern can be switched between bidirectional and unidirectional radiation patterns. Moreover, a SPDT switch is used to adjust the frequency and match the input impedance. The reconfigurable antenna prototype has been assembled and tested, and a good agreement between simulated and measured results is obtained at 2.5 GHz band which fits the IoT applications.

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