Omnidirectional high-gain wide slot antenna array for mobile phone base station

2014 ◽  
Author(s):  
Peerasan Kumsalee ◽  
Paowphattra Kamphikul ◽  
Piyaporn Krachodnok ◽  
Rangsan Wongsan
Keyword(s):  
Mobile Phone ◽  
Antenna Array ◽  
High Gain ◽  
Base Station ◽  
Slot Antenna ◽  
Mobile Phone Base Station

Analysis of Antenna Types Performance in Mobile Phone Base Station

2017 ◽  
Author(s):  
Saba Fadhel Jaf ◽  
Muhamed Fadhel Jaf ◽  
Niyaz Fadhel Jaf
Keyword(s):  
Mobile Phone ◽  
Base Station ◽  
Mobile Phone Base Station

scholarly journals Mobile-Phone Antenna Array with Diamond-Ring Slot Elements for 5G Massive MIMO Systems

Electronics ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 521 ◽  
Author(s):  
Naser Ojaroudi Parchin ◽  
Haleh Jahanbakhsh Basherlou ◽  
Mohammad Alibakhshikenari ◽  
Yasser Ojaroudi Parchin ◽  
Yasir I. A. Al-Yasir ◽  
...  
Keyword(s):  
Mobile Phone ◽  
Antenna Array ◽  
Massive Mimo ◽  
Printed Circuit Board ◽  
High Efficiency ◽  
Mimo Systems ◽  
Circuit Board ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Diamond Ring

A design of mobile-phone antenna array with diamond-ring slot elements is proposed for fifth generation (5G) massive multiple-input/multiple-output (MIMO) systems. The configuration of the design consists of four double-fed diamond-ring slot antenna elements placed at different corners of the mobile-phone printed circuit board (PCB). A low-cost FR-4 dielectric with an overall dimension of 75 × 150 mm2 is used as the design substrate. The antenna elements are fed by 50-Ohm L-shaped microstrip-lines. Due to the orthogonal placement of microstrip feed lines, the diamond-ring slot elements can exhibit the polarization and radiation pattern diversity characteristic. A good impedance bandwidth (S11 ≤ −10 dB) of 3.2–4 GHz has been achieved for each antenna radiator. However, for S11 ≤ −6 dB, this value is 3–4.2 GHz. The proposed design provides the required radiation coverage of 5G smartphones. The performance of the proposed MIMO antenna design is examined using both simulation and experiment. High isolation, high efficiency and sufficient gain-level characteristics have been obtained for the proposed MIMO smartphone antenna. In addition, the calculated total active reflection coefficient (TARC) and envelope correlation coefficient (ECC) of the antenna elements are very low over the whole band of interest which verify the capability of the proposed multi-antenna systems for massive MIMO and diversity applications. Furthermore, the properties of the design in Data-mode/Talk-mode are investigated and presented.

scholarly journals Use of portable exposure meters for comparing mobile phone base station radiation in different types of areas in the cities of Basel and Amsterdam

2014 ◽  
Vol 468-469 ◽  
pp. 1028-1033 ◽  
Author(s):  
Damiano Urbinello ◽  
Anke Huss ◽  
Johan Beekhuizen ◽  
Roel Vermeulen ◽  
Martin Röösli
Keyword(s):  
Mobile Phone ◽  
Base Station ◽  
Different Types ◽  
Mobile Phone Base Station

Mobile phone base station radiation does not affect neoplastic transformation in BALB/3T3 cells

2008 ◽  
Vol 29 (1) ◽  
pp. 55-64 ◽  
Author(s):  
H. Hirose ◽  
T. Suhara ◽  
N. Kaji ◽  
N. Sakuma ◽  
M. Sekijima ◽  
...  
Keyword(s):  
Mobile Phone ◽  
Neoplastic Transformation ◽  
Base Station ◽  
3T3 Cells ◽  
Mobile Phone Base Station

scholarly journals Design of Wideband Slot Antenna Array with Stereoscopic Differentially Fed Structures

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Guang Sun ◽  
Ge Gao ◽  
Tingting Liu ◽  
Yi Liu ◽  
Hu Yang
Keyword(s):  
Antenna Array ◽  
High Gain ◽  
Radar System ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Radiation Characteristics ◽  
Wide Bandwidth ◽  
Feeding Structure

In this paper, a wideband slot antenna element and its array with stereoscopic differentially fed structures are proposed for the radar system. Firstly, a series of slots and a stereoscopic differentially fed structure are designed for the antenna element, which makes it possess a wide bandwidth, stable radiation characteristics, and rather high gain. Moreover, the stereoscopic feeding structure can firmly support the antenna’s radiation structure and reduce the influence of feeding connectors on radiating performance. Secondly, a 4 × 4 array is designed using the proposed antenna element. And a hierarchical feeding network is designed for the array on the basis of the stereoscopic differentially fed structure. For validation, the antenna element and 4 × 4 array are both fabricated and measured: (1) the measured −10 dB impedance bandwidth of the antenna element is 62% (6.8–12.9 GHz) and the gain within the entire band is 5–9.7 dBi and (2) the measured −10 dB impedance bandwidth of the array is approximately 50% (7 to 12 GHz) with its gain being 14–19.75 dBi within the entire band. Notably, measured results agree well with simulations and show great advantages over other similar antennas on bandwidth and gain.

Residents’ Traveling Track and Analysis Methods Based on Mobile Phone Data

2014 ◽  
Vol 926-930 ◽  
pp. 2730-2734 ◽  
Author(s):  
Pan Li ◽  
Ye Wen Gao ◽  
Ju Wei Wu ◽  
Xu Li ◽  
Bing Bing Wu
Keyword(s):  
Mobile Phone ◽  
Base Station ◽  
Urban Transport ◽  
Mobile Phone Data ◽  
Analysis Method ◽  
Station Data ◽  
National Economic ◽  
Gis Data ◽  
Mobile Phone Base Station ◽  
National Economic Development

To avoid traffic congestion’s becoming the obstruct of social and national economic development is the final goal that professionals in transportation field make great efforts to pursue. At the same time, with the increasing popularity of mobile phones, we can get a lot of phone base station data to identify the residents’ travelling track. Thus we can analyze the residents’ travelling behavior and get residents’ travelling patterns and mechanism. Also, residents’ travelling could be induced and guided in order that the condition of urban transport can be improved. Based on the above background, this paper is mainly based on mobile phone base station data and GIS data analysis method research on the urban transportation of residents’ travelling track.

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