Compact split circular ring shape dual-band antenna with open ring and additional strip

2016 ◽  
Author(s):  
Yuktitath Chawanonphithak ◽  
Chuwong Phongcharoenpanich
Keyword(s):  
Circular Ring ◽  
Dual Band ◽  
Dual Band Antenna ◽  
Ring Shape ◽  
Open Ring

POLARIZATION-INDEPENDENT METAMATERIAL ABSORBER FOR SINGLE BAND AND MULTI-BAND FREQUENCY

2015 ◽  
Vol 77 (10) ◽  
Author(s):  
Osman Ayop ◽  
Mohamad Kamal A. Rahim ◽  
Noor Asniza Murad
Keyword(s):  
Ring Structure ◽  
Circular Ring ◽  
Unit Cell ◽  
Single Band ◽  
Frequency Separation ◽  
Dual Band ◽  
Band Frequency ◽  
Ring Shape ◽  
Polarization Independent ◽  
Multi Band

This paper presents the design and simulation of polarization-independent type of metamaterial absorbers (MMAbs) at X-band frequency. The advantage of polarization-independent MMAbs is it can absorbs incident electromagnetic (EM) wave in all polarization states. It can be achieved by applying circular ring shape in a unit cell of MMAbs because the shape is very symmetry. The simulation is done in a unit cell for each proposed MMAbs structures. The FR4 substrate is used for MMAbs structure designs. The designed MMAbs structures can be divided into two parts which is circular ring and modified circular ring. The characteristics of both structure are studied through simulation process using CST software. Parametric study is conducted to observe the effect of each parameters in unit cell on the absorbing magnitude and frequency. It is observed that circular ring structures can achieve high EM wave  absorbance for single band and multi band frequency. Since frequency separation distant limitation occurred, the modified circular ring structure is proposed by adding copper lines on the original circular ring structure. Thus, dual band frequency with close separation distant between two resonant frequencies is obtained as close as 1 GHz compared to the original dual band circular ring which is 2 GHz.

scholarly journals Harvesting microwave energy from WiMax bands based on a Dual-Band Antenna

2019 ◽  
Vol 227 ◽  
pp. 042044
Author(s):  
Chaari Mohamed Zied ◽  
El-Rahimi Rashid ◽  
Aljabri Hareb
Keyword(s):  
Microwave Energy ◽  
Dual Band ◽  
Dual Band Antenna

Compact dual-band antenna for DCS/2.4 GHz WLAN applications

2006 ◽  
Vol 48 (5) ◽  
pp. 856-859 ◽  
Author(s):  
Manoj Joseph ◽  
Rohith K. Raj ◽  
M. N. Suma ◽  
P. Mohanan
Keyword(s):  
Dual Band ◽  
Dual Band Antenna
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