The Dipole Antenna with Photonic Crystal Structure Used for Mobile Communication

2013 ◽  
Vol 448-453 ◽  
pp. 2163-2166
Author(s):  
Bin Lin ◽  
Ting Lin ◽  
Yang Ge ◽  
Rong Rong Wang ◽  
Yong Ping Guo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Mobile Communication ◽  
Communication System ◽  
Return Loss ◽  
Dipole Antenna ◽  
Photonic Crystal Structure ◽  
Frequency Range ◽  
Mobile Communication System ◽  
Important Significance

The antenna design and its manufacturing technology is one of the gordian technique in mobile communication system, the performance of antenna influences the performance of the mobile communication system directly. To mobile communication system, the study of antenna has important significance. The development of mobile communication system brings a new request to the antennas design. This paper start from dipole antenna and the structural theory of photonic crystal, bat around the superiority of the two, and make a combination, design a dipole antenna with photonic crystal structure which can work in 2GHz frequency range, small size, return loss in low and bandwidth is suitable for CDMA2000 mobile communication system, and we simulate and test the performance of this antenna, discuss how the parametric variation will influence the performance of antenna.

scholarly journals Wide Band Parasitic Microstrip Antenna using Multiple Feedline for Mobile Communication

2019 ◽  
Vol 9 (1) ◽  
pp. 1887-1891
Keyword(s):  
Mobile Communication ◽  
Communication System ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Wide Band ◽  
Frequency Range ◽  
Optimal Bandwidth ◽  
Feed Line ◽  
Measurement Results ◽  
Working Frequency

his paper proposes design of parasitic microstrip antenna with multiple feed line for mobile communication applications at range frequency of 1800 – 2100 MHz. The purpose of adding multiple feed line is to enhanced the bandwidth of the proposed antenna. The multiple feed line used has an impedance of 100 Ohm and is placed on the edge of the patch parasitic microstrip antenna. The optimal bandwidth of the microstrip antenna is obtained by adjusting the dimensions and position of the multiple feed line. From the measurement results obtained return loss of -14.91 dB, VSWR of 1.44 at working frequency of 1800 MHz and bandwidth of 427 MHz with a frequency range 1715 MHz - 2142 MHz. . From these results it can be concluded that the banwidth of proposed antenna has met the criteria to be used in a mobile communication system.

scholarly journals Rational Design and Simulation of Two-Dimensional Perovskite Photonic Crystal Absorption Layers Enabling Improved Light Absorption Efficiency for Solar Cells

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2460
Author(s):  
Jian Zou ◽  
Mengnan Liu ◽  
Shuyu Tan ◽  
Zhijie Bi ◽  
Yong Wan ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solar Cells ◽  
Photonic Crystal ◽  
Incident Light ◽  
Absorption Efficiency ◽  
Utilization Efficiency ◽  
Photonic Crystal Structure ◽  
Two Dimensional ◽  
Photoelectric Conversion ◽  
Absorption Layer

A two-dimensional perovskite photonic crystal structure of Methylamine lead iodide (CH3NH3PbI3, MAPbI3) is rationally designed as the absorption layer for solar cells. The photonic crystal (PC) structure possesses the distinct “slow light” and band gap effect, leading to the increased absorption efficiency of the absorption layer, and thus the increased photoelectric conversion efficiency of the battery. Simulation results indicate that the best absorption efficiency can be achieved when the scattering element of indium arsenide (InAs) cylinder is arranged in the absorption layer in the form of tetragonal lattice with the height of 0.6 μm, the diameter of 0.24 μm, and the lattice constant of 0.4 μm. In the wide wavelength range of 400–1200 nm, the absorption efficiency can be reached up to 82.5%, which is 70.1% higher than that of the absorption layer without the photonic crystal structure. In addition, the absorption layer with photonic crystal structure has good adaptability to the incident light angle, presenting the stable absorption efficiency of 80% in the wide incident range of 0–80°. The results demonstrate that the absorption layer with photonic crystal structure can realize the wide spectrum, wide angle, and high absorption of incident light, resulting in the increased utilization efficiency of solar energy.

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