A novel circularly polarized dsrc band square microstrip antenna using minkowski fractal structure for vehicular communication

Author(s):  
Tapas Mondal ◽  
Susamay Samanta ◽  
Rowdra Ghatak ◽  
S.R. Bhadra Chaudhuri
2016 ◽  
Vol 9 (4) ◽  
pp. 891-901 ◽  
Author(s):  
Mohammad Sadegh Sedghi ◽  
Mohammad Naser-Moghadasi ◽  
Ferdows B. Zarrabi

In this paper, combination of electromagnetic band gap (EBG) and split-ring resonator (SRR) loads with fractal formation for miniaturization of microstrip antenna is noticed. Here two different shapes of antenna have been studied with two well-known metamaterial structures as parasitic elements. A conventional microstrip antenna, which is surrounded by four EBG unit cells, is chosen as the first antenna. It has an effective resonance at 2.5. The Minkowski fractal method is applied to EBG unit cells in this stage. The Minkowski fractal structure is implemented for accession of effective capacitance in EBG unit cells. The second antenna frequencies are 2.5 and 5.9 GHz. It contains a slot structure with four SRRs, used for making parasitic elements and for achieving multi-band characteristic. The fractal method is used to improve the inductance of SRR structure by increasing the effective length of microstrip line. At this stage, the applied fractal structure has been modified, so that the frequency of wireless application could be achieved. In the last step, by some changes in feed line of the slot antenna, circular polarization (CP) is obtained for the second antenna, which shows that SRR load can be helpful for making the CP.


2018 ◽  
Vol 67 (6) ◽  
pp. 5126-5134 ◽  
Author(s):  
Tapas Mondal ◽  
Sandip Maity ◽  
Rowdra Ghatak ◽  
Sekhar Ranjan Bhadra Chaudhuri

2014 ◽  
Vol 1006-1007 ◽  
pp. 1010-1013
Author(s):  
Xiu Bin Ye ◽  
Guo Peng Kou ◽  
Yi Juan Ji

Antennas play an important role in RFID system. As one of the key technology of RFID, the antenna design decides the RFID system performance. This paper designed a ceramic Minkowski fractal antenna used in RFID system. It used Minkowski fractal structure as the radiation patch and the high performance ceramic material to reduce the antenna size, then improve it with rectangular joint structure in the antenna's ground plate. In this paper, the antenna performance are analyzed in the simulation, In this paper, the antenna performance are analyzed in the simulation, it discussed the thickness of the medium plate and the effect of dielectric constant on the performance of microstrip antenna, finally make antenna samples for testing. The simulation and test results show the antenna designed meet the requirement of RFID applications.


2021 ◽  
Vol 60 (2) ◽  
pp. 2457-2470
Author(s):  
Shahanawaz Kamal ◽  
Mohd Fadzil Bin Ain ◽  
Ubaid Ullah ◽  
Abdullahi S.B. Mohammed ◽  
Fathul Najmi ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Guo Liu ◽  
Liang Xu ◽  
Yi Wang

A novel high-performance circularly polarized (CP) antenna is proposed in this paper. Two separate antennas featuring the global positioning system (GPS) dual-band operation (1.575 GHz and 1.227 GHz for L1 band and L2 band, resp.) are integrated with good isolation. To enhance the gain at low angle, a new structure of patch and two parasitic metal elements are introduced. With the optimized design, good axial ratio and near-hemispherical radiation pattern are obtained.


2017 ◽  
Vol 59 (10) ◽  
pp. 2498-2501 ◽  
Author(s):  
Yoonsang Noh ◽  
Yooncheol Shin ◽  
Min-Jae Lee ◽  
Seongmin Pyo

Sign in / Sign up

Export Citation Format

Share Document