A high-isolation dual-polarization dielectric resonator antenna with bowtie-shaped slot coupling

2015 ◽  
Vol 57 (10) ◽  
pp. 2426-2429 ◽  
Author(s):  
Min Guo ◽  
Xiao-Bo Xuan ◽  
Min Wang ◽  
Jun Wen Cui ◽  
Shun-Shi Zhong
2017 ◽  
Vol 59 (7) ◽  
pp. 1686-1692 ◽  
Author(s):  
Gourab Das ◽  
Anand Sharma ◽  
Ravi Kumar Gangwar

2013 ◽  
Vol 38 ◽  
pp. 111-118 ◽  
Author(s):  
Jing-Li Guo ◽  
Lin-Ya Zhou ◽  
You-Huo Huang ◽  
Bao-Hua Sun

Author(s):  
S. Salihah ◽  
M. H. Jamaluddin ◽  
R. Selvaraju ◽  
M. N. Hafiz

In this article, a Multiple-Input-Multiple-Output (MIMO) H-shape Dielectric Resonator Antenna (DRA) is designed and simulated at 2.6 GHz for 4G applications. The proposed structure consists of H-shape DRA ( =10) which is mounted on FR4 substrate ( =4.6), and feed by two different feeding mechanisms. First, microstrip with slot coupling as Port 1. Second, coaxial probe as Port 2. The electrical properties of the proposed MIMO H-shape DRA in term of return loss, bandwidth and gain are completely obtained by using CST Microwave Studio Suite Software. The simulated results demonstrated a return loss more than 20 dB, an impedance bandwidth of 26 % (2.2 – 2.9 GHz), and gain of 6.11 dBi at Port 1. Then, a return loss more than 20 dB, an impedance bandwidth of 13 % (2.2 – 2.7 GHz), and gain of 6.63 dBi at Port 2. Both ports indicated impedance bandwidth more than 10 %, return loss lower than 20 dB, and gain more than 10 dBi at 2.6 GHz. The simulated electrical properties of the proposed design show a good potential for LTE applications.


Author(s):  
Sounik Kiran Kumar Dash ◽  
Qingsha S. Cheng ◽  
Taimoor Khan

Abstract A superstrate loaded cylindrical dielectric resonator antenna is developed and demonstrated for dual-band circular polarization. The proposed antenna employs a microstrip-fed rotated cross-shaped slot coupling technique for exciting the dielectric resonator (DR). The design is developed in a straight forward way. Firstly, the DR is coupled with a conventional plus-shaped slot and operates in linear polarization mode at 7.4 and 11.2 GHz. Secondly, the slot is rotated by 10° to enable out-of-phase excitation and ensure circular polarization at the above-mentioned frequencies. In the third step, a square dielectric superstrate is placed above the DR which creates multiple reflection and enhance the gain up to ~8 dBi in both the frequencies without affecting other performances. The development stages are discussed in detail. The proposed design is demonstrated through prototype fabrication and characterization. This antenna can be used for X-band satellite communications.


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