scholarly journals Two-dimensional array design techniques of millimeter-wave microstrip comb-line antenna array

Radio Science ◽  
2008 ◽  
Vol 43 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Kunio Sakakibara ◽  
Yuki Hayashi ◽  
Nobuyoshi Kikuma ◽  
Hiroshi Hirayama
Author(s):  
Nai-Chen Liu ◽  
Ching-Cheng Tien ◽  
Chi-Yang Chang ◽  
Hao-Wei Ling ◽  
Chih-Wei Chiu ◽  
...  

2017 ◽  
Vol 24 (2) ◽  
pp. 106-112 ◽  
Author(s):  
Jing Zhang ◽  
Xiaohu Ge ◽  
Qiang Li ◽  
Mohsen Guizani ◽  
Yanxia Zhang

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Chunhui Zhou ◽  
Xiang Chen ◽  
Xiujun Zhang ◽  
Shidong Zhou ◽  
Ming Zhao ◽  
...  

The high spectrum efficiency of multiple-input multiple-output (MIMO) transmission traditionally depends on the high multiplexing gain in rich scattering environments, which will not always hold in the line-of-sight (LOS) environments, especially at higher microwave frequency band. In this paper, a novel antenna array design rule is proposed to guarantee full multiplexing gain for LOS-MIMO systems with one- or two-dimensional antenna arrays in LOS scenarios, and the strict perpendicular constraint is released in the two-dimensional case. The minimum antenna array area and the performance sensitivity to the area error are also obtained to guide the practical system design. Then, a demo MIMO-OFDM system with the designed square antenna array at 15 GHz carrier is implemented on a novel Gigabit Ethernet (GE) switch-based software defined radio (SDR) platform, which combines the hardware accelerating units (HAUs) with the general-purpose processors (GPPs). The field evaluation results show that the system throughput and spectrum efficiency are greater than 1 Gbps and 15 bps/Hz, respectively. To the best of our knowledge, it is the first time to demonstrate the Gbps LOS-MIMO-OFDM system at such microwave bands in the world, which can be a successful design example for the next generation wireless backhaul or fixed wireless access.


2000 ◽  
Vol 61 (8) ◽  
pp. 5267-5279 ◽  
Author(s):  
K. Ohtaka ◽  
Y. Suda ◽  
S. Nagano ◽  
T. Ueta ◽  
A. Imada ◽  
...  

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