Compact 2.4/5-GHz dual-band annular-ring slot antenna with circular polarization

2009 ◽  
Vol 51 (8) ◽  
pp. 1848-1852 ◽  
Author(s):  
Wang Ren
Keyword(s):  
Circular Polarization ◽  
Dual Band ◽  
Slot Antenna ◽  
Annular Ring ◽  
5 Ghz

Dual-band capacitively loaded annular-ring slot antenna for dual-sense circular polarization

2017 ◽  
Vol 31 (9) ◽  
pp. 867-878 ◽  
Author(s):  
Changqing Wang ◽  
Jianxing Li ◽  
Anxue Zhang ◽  
William T. Joines ◽  
Qing Huo Liu
Keyword(s):  
Circular Polarization ◽  
Dual Band ◽  
Slot Antenna ◽  
Annular Ring

DESIGN AND INVESTIGATION OF A DUAL-BAND ANNULAR RING SLOT ANTENNA FOR AIRCRAFT APPLICATIONS

2013 ◽  
Vol 38 ◽  
pp. 67-78
Author(s):  
Li Sun ◽  
Bao-Hua Sun ◽  
Guanxi Zhang ◽  
Dan Cao ◽  
Bin Fan
Keyword(s):  
Dual Band ◽  
Slot Antenna ◽  
Annular Ring

Polarization Reconfigurable Dual-Band Rectangular Slot Antenna

Frequenz ◽  
2019 ◽  
Vol 73 (9-10) ◽  
pp. 339-351
Author(s):  
Rohit Kumar Saini
Keyword(s):  
Circular Polarization ◽  
Linear Polarization ◽  
Dual Band ◽  
Slot Antenna ◽  
Pin Diodes ◽  
Rectangular Slot ◽  
Left Hand ◽  
Right Hand ◽  
Lower Band ◽  
The Senses

Abstract A novel dual-band rectangular slot antenna is presented for dual-sense reconfigurable polarization. A W-shaped microstrip feedline and two rectangular parasitic patches are used to obtain dual-band circular polarization. Further, the feedline is modified so that the senses of polarization at the two bands are opposite. By introducing PIN-diodes in the feed lines, polarization can be switched among left-hand circular polarization (LHCP), right-hand circular polarization (RHCP), and linear polarization (LP). A prototype dual-band dual-sense antenna with f01 = 1.9 GHz and f02 = 3.45 GHz is fabricated in a 1.6 mm thick FR4 substrate. The measured circular polarized bandwidths are more than 7.6 % for the lower band and 5 % for the upper band.

A CPW-fed uniplanar dual-band tri-polarization diversity antenna based on PIN diode for the wireless communication

2017 ◽  
Vol 9 (8) ◽  
pp. 1695-1703
Author(s):  
Haixiong Li ◽  
Yunlong Gong ◽  
Jiakai Zhang ◽  
Jun Ding ◽  
Chenjiang Guo
Keyword(s):  
Wireless Communication ◽  
Circular Polarization ◽  
Coplanar Waveguide ◽  
Axial Ratio ◽  
Dual Band ◽  
Slot Antenna ◽  
Reconfigurable Antenna ◽  
Pin Diode ◽  
Left Handed ◽  
The Right

In this paper, a coplanar waveguide (CPW)-fed dual-band uniplanar tri-polarization reconfigurable antenna based on the PIN diode switch is proposed. The proposed antenna can be reconfigured between the linear polarization (LP) and the circular polarization (CP) mode, including both the right-handed circular polarization and left-handed circular polarization simultaneously within the dual operating bands. The central frequencies of the bands are 2.63 and 4.42 GHz, respectively, and the overlapped operating bandwidth is 17.8 and 3.40%. The proposed reconfigurable antenna is a closed-slot antenna fed by the CPW transmission line and the reconfigurable mechanism is to regulate the T-shaped driven stub through switching the PIN diodes on and off. The scattering parameters, axial ratio, radiation pattern, gain, and the radiation efficiency of the proposed antenna are all investigated in the following. The optimized antenna has been fabricated to experimental test, the simulated and the measured results agree well with each other. The lower frequency band of the proposed antenna covers the 2.40 GHz WLAN specification and the upper band can be used for the 5 G communication (4.40–4.50 GHz); therefore it is suitable to be applied in the mobile wireless communication.

Novel dual-band asymmetric U-shaped slot antenna for dual-circular polarization

2016 ◽  
Vol 27 (1) ◽  
pp. e21047 ◽  
Author(s):  
Qiang Chen ◽  
Hou Zhang ◽  
Lu-chun Yang ◽  
Hai-peng Li ◽  
Tao Zhong ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Dual Band ◽  
Slot Antenna

Novel compact 2.4/5-GHz dual-band T-slot antenna for WLAN operations

2007 ◽  
Vol 49 (6) ◽  
pp. 1236-1238 ◽  
Author(s):  
Wang Ren ◽  
Zhiguo Shi ◽  
Haiwen Liu ◽  
Kangsheng Chen
Keyword(s):  
Dual Band ◽  
Slot Antenna ◽  
5 Ghz

Annular-ring slot antenna designs with circular polarization radiation

2014 ◽  
Vol 25 (4) ◽  
pp. 337-345 ◽  
Author(s):  
C. Y. D. Sim ◽  
W. C. Weng ◽  
M. H. Chang ◽  
B. Y. Chen
Keyword(s):  
Circular Polarization ◽  
Slot Antenna ◽  
Annular Ring
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