Dielectric resonator antenna element and subarray with unequal cross-stub

2008 ◽  
Vol 50 (8) ◽  
pp. 2189-2191 ◽  
Author(s):  
Li-Na Zhang ◽  
Shun-Shi Zhong ◽  
Sai-qing Xu
2017 ◽  
Vol 4 (2) ◽  
pp. 132-145 ◽  
Author(s):  
Takayuki Matsumuro ◽  
Yohei Ishikawa ◽  
Tomohiko Mitani ◽  
Naoki Shinohara ◽  
Masashi Yanagase ◽  
...  

A terrestrial microwave power transmission system is considered as an effective method for collecting natural energy. In this system, frequency dependence of the refractive index and multipath propagation due to the ground surface poses problems. In the study, a single-frequency retrodirective system was proposed with a beam pilot signal using dual-mode dielectric resonator antenna elements. The results confirmed that the beam pilot signal radiated from the entire surface of the receiving antenna and accurately used the same propagation space as that of microwave power by beam propagation method simulation. A dual-mode dielectric resonator antenna was proposed as a common array antenna element for the beam pilot signal and microwave power. This involves a cross-shaped hemispherical dielectric resonator structure, and an isolation level exceeding 60 dB was experimentally measured between the orthogonal ports of the fabricated antenna. The dual-mode dielectric resonator antenna with an isolation exceeding 60 dB was successfully developed as an enabling device to realize a single-frequency retrodirective system with a beam pilot signal.


2013 ◽  
Vol 33 (8) ◽  
pp. 575-582
Author(s):  
Farzaneh Ahmadi ◽  
Keyvan Forooraghi ◽  
Zahra Atlasbaf ◽  
Bal Virdee

Author(s):  
Sharif Ahmed Qasem ◽  
Tan Kim Geok ◽  
Mohamad Yusoff Alias ◽  
Ferdous Hossain ◽  
Naif Alsowaidi

2007 ◽  
Vol 17 (1) ◽  
pp. 1-30
Author(s):  
S.H. Zainud-Deen ◽  
E. El-Deen ◽  
H.A. Sharshar ◽  
M. A. Binyamin

1993 ◽  
Vol 29 (14) ◽  
pp. 1310
Author(s):  
K.W. Leung ◽  
K.Y.A. Lai ◽  
K.M. Luk ◽  
D. Lin

Author(s):  
Irfan Ali ◽  
Mohd Haizal Jamaluddin ◽  
Muhammad Ramlee Kamarudin ◽  
Abinash Gaya ◽  
S Raghuraman ◽  
...  

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