scholarly journals The architecture design of information intelligent recommendation system for mobile communication terminal

2021 ◽  
Vol 2033 (1) ◽  
pp. 012119
Author(s):  
Mengying Yang ◽  
Ying Wang
Keyword(s):  
Mobile Communication ◽  
Recommendation System ◽  
Architecture Design ◽  
Mobile Communication Terminal

Personalized Resources Recommendation System Design for Teachers Training

2014 ◽  
Vol 644-650 ◽  
pp. 5765-5768
Author(s):  
Dan Dan Wei ◽  
Le Xing Qiu
Keyword(s):  
System Design ◽  
Communication Technology ◽  
Computer Technology ◽  
Mobile Communication ◽  
System Architecture ◽  
Recommendation System ◽  
Network Technology ◽  
Safeguard Mechanism ◽  
Mobile Communication Technology ◽  
Teachers Training

With the integration of computer technology, network technology and mobile communication technology continuously, the formation of personalized resource recommendation has become possible. Based on teachers' demand investigation and analysis, this paper analyzes the teacher system architecture, personalized resource recommendation and service safeguard mechanism.

Reconfigurable Planar Monopole Antenna for Fifth-Generation Mobile Communication System

2021 ◽  
Vol 36 (1) ◽  
pp. 67-74
Author(s):  
Peng Chen ◽  
Lihua Wang ◽  
Zhonghua Ma
Keyword(s):  
Mobile Communication ◽  
Monopole Antenna ◽  
Frequency Bands ◽  
Fifth Generation ◽  
Current Path ◽  
Longitudinal Length ◽  
Dc Bias ◽  
Planar Monopole Antenna ◽  
Mobile Communication Terminal ◽  
Frequency Current

A frequency reconfigurable planar monopole antenna for fifth-generation (5G) mobile communication terminal equipment is presented. The proposed antenna uses a meandered monopole, branch resonance and other techniques to make the antenna resonant in multiple frequency bands. The antenna is compact in size (115 mm × 55 mm × 0.8 mm) and has a longitudinal length less than one-tenth of the resonant wavelength (working at 1.79 GHz). The pin diode is designed between the planar meandered monopole antenna and branch. The current path of the high-frequency current on the antenna can be easily controlled by controlling the DC bias voltage of the diode, and the operating frequency of the antenna is switched between three frequency bands. The antenna is fed directly through a 50 Ω matched transmission line. The measured data of the antenna in the anechoic chamber show good consistency with simulation data. The radiation pattern of the antenna shows good omnidirectional characteristics and good frequency characteristics, with a maximum radiation gain of 13.6 dBi. Experimental results demonstrate that the antenna can meet the design requirements of 5G communication.

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