Recent results from smart antenna experiments-base station and handheld terminals

Author(s):  
W.L. Stutzman ◽  
J.H. Reed ◽  
C.B. Dietrich ◽  
B.-K. Kim ◽  
D.G. Sweeney
Keyword(s):  
Author(s):  
A. Kuchar ◽  
M. Taferner ◽  
M. Tangemann ◽  
C. Hoek ◽  
W. Rauscher ◽  
...  
Keyword(s):  

2013 ◽  
Vol 760-762 ◽  
pp. 954-958
Author(s):  
Run Jie Liu ◽  
Dan Li Kou

With the rapid development of China's TD-SCDMA system, how to qualitative and quantitative to judge intelligent antenna electromagnetic radiation pollution is a problem to be solved. Due to the special working principle of smart antenna, the second generation communication system spectrometer and field intensity meter measurement method is a complicated and difficult to operate. This paper introduces a design suitable for TD smart antenna measurement system: this system can realize in single user or multiple users at the same time and the TD base station set up calls link of multi-point synchronous signal intensity measurement. The measurement results of our system are very close to the measurement results of spectrometer field intensitys and can reasonable reflect TD stations around the extent of the electromagnetic radiation. This method of our system is easy, cheap and maneuverable


Author(s):  
Seungheon Hyeon ◽  
Changhoon Lee ◽  
Chang-eui Shin ◽  
Seungwon Choi

Information ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 328 ◽  
Author(s):  
António Carneiro ◽  
João Torres ◽  
António Baptista ◽  
Maria Martins

In the present paper, a smart planar electrically steerable passive array radiator (ESPAR) antenna was developed and tested at the frequency of 1.33 GHz with the main goal to control the main radiation lobe direction, ensuring precise communication between the antenna that is implemented in an unmanned aerial vehicle (UAV) and the base station. A control system was also developed and integrated into the communication system: an antenna coupled to the control system. The control system consists of an Arduino, a digital potentiometer, and an improved algorithm that allows defining the radiation-lobe direction as a function of the UAV flight needs. The ESPAR antenna was tested in an anechoic chamber with the control system coupled to it so that all previously established requirements were validated.


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