scholarly journals A compact dual-band dual-port diversity antenna for LTE

2012 ◽  
Vol 1 (1) ◽  
pp. 52
Author(s):  
L. Mouffok ◽  
A. C. Lepage ◽  
J. Sarrazin ◽  
X. Begaud
Keyword(s):  
Antenna System ◽  
Dual Band ◽  
Handheld Devices ◽  
Antenna Diversity ◽  
Mobile Terminals ◽  
Term Evolution ◽  
Diversity Gains ◽  
Diversity Antenna ◽  
Good Agreement

The design of a compact dual-band dual-port antenna system is presented. It operates in two frequency bands, 790-862 MHz and 2500-2690 MHz, thereby making it suitable for Long Term Evolution (LTE) handheld devices. The proposed system is composed of two orthogonal inverted-F antennas (IFA) to perform diversity in mobile terminals. A good agreement is observed between simulated and experimental results. The high antenna diversity capability of the proposed system is highlighted with the calculation of envelope correlation coefficient, mean effective and diversity gains for different environment scenarii.

scholarly journals Compact Dual-Band Dual-Polarized Antenna for MIMO LTE Applications

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Lila Mouffok ◽  
Anne Claire Lepage ◽  
Julien Sarrazin ◽  
Xavier Begaud
Keyword(s):  
Free Space ◽  
Experimental Results ◽  
Dual Band ◽  
Antenna Diversity ◽  
Mobile Terminals ◽  
Central Wavelength ◽  
Lower Band ◽  
Dual Polarized ◽  
Dual Polarized Antenna ◽  
Good Agreement

A system of two dual-band dual-polarized antennas is proposed. It operates in two bands, 700 to 862 MHz and 2.5 to 2.69 GHz, thereby making it suitable for LTE applications. The design is composed of two compact orthogonal monopoles printed close to each other to perform diversity in mobile terminals such as tablets or laptops. For each band, two orthogonal polarizations are available and an isolation higher than 15 dB is achieved between the two monopoles spaced byλ0/10 (whereλ0the central wavelength in free space of the lower band). A good agreement is observed between simulated and experimental results. The antenna diversity capability is highlighted with the calculation of envelope correlation and mean effective gain for several antennas' positions in different environment scenarios.

scholarly journals Link Quality Improvement of Long-Term Evolution and 802.11ax in High-Density Areas

2020 ◽  
Vol 2020 ◽  
pp. 1-28
Author(s):  
Mina Malekzadeh
Keyword(s):  
Network Architecture ◽  
High Efficiency ◽  
Long Term Evolution ◽  
Quality Parameters ◽  
High Density ◽  
Link Quality ◽  
Dual Band ◽  
Architecture Model ◽  
Term Evolution

The 802.11ax high-efficiency wireless (HEW) particularly designed for high-density areas. However, dense areas have specific requirements that demand precise deployment strategies by network developers. In dense networks, a large number of users are simultaneously connected to the same channel; hence, the available bandwidth is divided among the users in such a way that joining more users can eventually saturate the network. Furthermore, in dense areas, a large number of closely spaced users are transmitting data at the same time. In such a heavily frequency interfered environment, the wireless link quality extremely degrades, which can practically render the network unavailable. Thereby, it is essential to determine the appropriate deployment options regarding the specific networks’ settings and configurations. Hence, this work proposes a network architecture model to determine the dual-band HEW performance in dense deployments. The model additionally includes long-term evolution (LTE) as the cellular alternative for high-density areas which is utilized by the model as the reference point for corresponding comparison purposes with HEW. The model is implemented, and link quality parameters are measured based on different aspects of the deployment options. To further validate the model and determine the optimization levels provided by the options, the simulation and analytical results are compared.

A Novel Dual-Band Mixer Using Arbitrary Impedances-Matching Coupler for Long-Term Evolution Applications

2015 ◽  
Vol 35 (3) ◽  
pp. 205-215
Author(s):  
Zixuan Ning ◽  
Yuanan Liu ◽  
Yongle Wu ◽  
Jianguo Yu
Keyword(s):  
Long Term Evolution ◽  
Dual Band ◽  
Term Evolution

A Dual-Element Dual-Band MIMO Antenna System With Enhanced Isolation for Mobile Terminals

2012 ◽  
Vol 11 ◽  
pp. 1006-1009 ◽  
Author(s):  
M. S. Sharawi ◽  
A. B. Numan ◽  
M. U. Khan ◽  
D. N. Aloi
Keyword(s):  
Antenna System ◽  
Dual Band ◽  
Mobile Terminals ◽  
Mimo Antenna

A miniaturized dual-band antenna for long-term evolution system template

2013 ◽  
Vol 55 (6) ◽  
pp. 1379-1382
Author(s):  
Chih Peng Lin ◽  
T.Y. Lin ◽  
Jie-Huang Huang ◽  
Christina F. Jou
Keyword(s):  
Long Term Evolution ◽  
Dual Band ◽  
Evolution System ◽  
Dual Band Antenna ◽  
Term Evolution
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