2.4/5.2 GHz Dual-WLAN Unequal-Arms Dipole Antenna with a Chip Inductor for omni-directional radiation patterns

2007 ◽  
Author(s):  
S. H. Yeh ◽  
W. C. Yang ◽  
W. K. Su ◽  
C. Y. Wu
Keyword(s):  
Dipole Antenna ◽  
Radiation Patterns ◽  
Directional Radiation

scholarly journals Magnetoelectric Dipole Antenna with Dual Polarization and High Isolation

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Xujun Yang ◽  
Lei Ge ◽  
Dengguo Zhang ◽  
Chow-Yen-Desmond Sim
Keyword(s):  
Transmission Lines ◽  
Dipole Antenna ◽  
Cross Polarization ◽  
Radiation Patterns ◽  
Dual Polarization ◽  
High Isolation ◽  
Microstrip Lines ◽  
Directional Radiation ◽  
Dual Polarized ◽  
Coaxial Lines

A dual-polarized aperture-coupled magnetoelectric (ME) dipole antenna is presented in this paper. The feeding network is based on substrate-integrated coaxial lines (SICLs). To describe the effect of the SICL on improving the isolation, the ME dipole with another two different feeding configurations, microstrip lines and striplines, respectively, is compared. As such, the coupling between the transmission lines is tremendously reduced and the isolation between the two input ports of different polarization is enhanced. An antenna prototype is fabricated and tested, exhibiting good performances, including an isolation level of higher than 30 dB between the two input ports and gains of more than 9.5 dBi. Besides, the proposed design is capable of achieving stable directional radiation patterns with cross-polarization levels lower than −22 dB and back radiation levels lower than −24 dB.

scholarly journals A Planar Reconfigurable Radiation Pattern Dipole Antenna with Reflectors and Directors for Wireless Communication Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Imen Ben Trad ◽  
Jean Marie Floc’h ◽  
Hatem Rmili ◽  
M’hamed Drissi ◽  
Fethi Choubani
Keyword(s):  
Wireless Communication ◽  
Radiation Pattern ◽  
Dipole Antenna ◽  
Radiation Patterns ◽  
Pin Diodes ◽  
Dual Beam

A planar printed dipole antenna with reflectors and directors, able to steer its radiation pattern in different directions, is proposed for telecommunication applications. Starting from a dual-beam printed dipole antenna achieved by combining two elementary dipoles back to back, and by loading four PIN diodes, three modes of reconfigurable radiation patterns are achieved at the frequency 2.56 GHz thanks to switches states. A prototype of the structure was realized and characterized; an efficiency of 75% is obtained. Simulation and measured results of the results are presented and discussed.

IMPROVEMENT OF DIPOLE ANTENNA GAIN USING 8 CBU AMC-EBG AND 8 CBU FSS

2017 ◽  
Vol 79 (4) ◽  
Author(s):  
Maisarah Abu ◽  
Siti Adlina Md Ali ◽  
Siti Normi Zabri
Keyword(s):  
Transport System ◽  
Ground Plane ◽  
Side Lobe ◽  
High Gain ◽  
Dipole Antenna ◽  
Intelligent Transport System ◽  
Antenna Gain ◽  
Radiation Patterns ◽  
Intelligent Transport

This paper investigates the performances of dipole antenna incorporated with and without 8 CBU AMC-EBG and 8 CBU FSS at 5.8 GHz. The designs are simulated on Rogers RO 3010. Due to the flexibility of the material used as a substrate, the effect of a different angle is investigated. Both 8 CBU AMC-EBG and 8 CBU FSS act as reasonably good ground plane for the dipole antenna and help improving the realised gain and improve the radiation patterns by push the front lobe at the same time reduce the side lobes. The maximum improvements led by dipole antenna with 8 CBU AMC-EBG thus 8.543 dB of realised gain achieved and the front lobe is pushed higher and the side lobe is significantly lowered than with 8 CBU FSS. The designs of dipole antenna with 8 CBU AMC-EBG and 8 CBU FSS can be applied as high gain  atenna for Intelligent Transport System (ITS).

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