scholarly journals An Eight Element Dual Band Antenna for Future 5G Smartphones

Electronics ◽  
2021 ◽  
Vol 10 (23) ◽  
pp. 3022
Author(s):  
Haider Ali ◽  
Xin-Cheng Ren ◽  
Anas M. Hashmi ◽  
Muhammad Rizwan Anjum ◽  
Inam Bari ◽  
...  
Keyword(s):  
Mimo System ◽  
Antenna System ◽  
Dual Band ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Radiation Characteristics ◽  
High Data ◽  
Dual Band Antenna ◽  
Acceptable Range ◽  
Peak Gain

The demand of 5G in modern communication era due to its high data rate, reliable connectivity and low latency is enormous. This paper presents a novel dual band antenna resonating at two distinct bands allotted for 5G services. The proposed antenna is composed of inverted L shape probes comprising a rectangular defected ground structure. The propose antenna covers 3.4–3.6 GHz and 5.4–5.6 GHz spectrum. In propose MIMO system, the efficiency ranges from 52 to 69% with peak gain of 3.1 dBi. The proposed antenna system is sufficiently isolated with minimum value of 13 dB and ECC less than 0.05 among any two radiating elements. Similarly, the channel capacity is found to be 38 and 39.5 at both resonating bands at 20 dB SNR and diversity and mean effective gains lies in acceptable range. The radiation characteristics of the proposed design shows that the proposed antenna is providing good diversity characteristics and SAR values have demonstrated to be safe for user vicinity. The proposed dual band antenna prototype is developed tested. With the measured results obtained, the MIMO system proposed can be seen as vital candidate for 5G LTE band 42 and 46 services.

Design and Performance Exploration of a Compact Dual-Band Antenna for Wban-On Body Applications

2020 ◽  
pp. 2150034
Author(s):  
Asmita Rajawat ◽  
Mohit Mohta ◽  
Aayush Sharma ◽  
Sindhu Hak Gupta
Keyword(s):  
Wireless Body Area Network ◽  
Ultra Wideband ◽  
Dual Band ◽  
Area Network ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Resonant Frequencies ◽  
Human Contact ◽  
Dual Band Antenna ◽  
And Performance

This paper is formulated keeping in view the need of compact antennas for wireless body area network (WBAN). The designed compact dual-band antenna (20[Formula: see text]mm [Formula: see text] 22[Formula: see text]mm [Formula: see text] 3.55[Formula: see text]mm) radiates at two resonant frequencies in the ultra-wideband (UWB) range. Compactness in the designed antenna is attained by using three different layers of copper and the return loss and gain characteristics are improved by incorporating a G-shape defected ground structure (DGS). The proposed antenna is unidirectional and immune to human contact since it is designed in the UWB range (3.1–10.6[Formula: see text]GHz) which makes it highly suitable for WBAN applications as its low radiating power is harmless for human tissues. The substrate used for design is RT/duroid with a relative permittivity of 2.2. The antenna exhibits superior frequency domain characteristics with simulated [Formula: see text] of [Formula: see text]16.39[Formula: see text]dB for 4.08[Formula: see text]GHz and [Formula: see text]21.87[Formula: see text]dB for 8.18[Formula: see text]GHz and realized gain of 3.69 and 6.02[Formula: see text]dB for 4.08 and 8.18[Formula: see text]GHz, respectively. The measured [Formula: see text] depicts a shift to the lower band for the fabricated antenna with the values of [Formula: see text]15.36[Formula: see text]dB for 3.55[Formula: see text]GHz and [Formula: see text]21.66[Formula: see text]dB for 6.218[Formula: see text]GHz.

scholarly journals Design and analysis of defected ground structure transformer for dual-band antenna

2014 ◽  
Vol 2014 (11) ◽  
pp. 612-617 ◽  
Author(s):  
Wai-Wa Choi ◽  
Ka Fai Chang ◽  
Chon Chio Leong ◽  
Pedro Cheong ◽  
Kam Weng Tam
Keyword(s):  
Dual Band ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Dual Band Antenna

scholarly journals DESIGN OF A DUAL-BAND ANTENNA SYSTEM FOR LTE-M AND LTE-MIMO BY EXPLOITING THE CHARACTERISTIC MODE THEORY

2020 ◽  
Vol 93 ◽  
pp. 11-21
Author(s):  
Kadidiatou Diallo ◽  
Aliou Diallo ◽  
Ibra Dioum ◽  
Samuel Ouya ◽  
Jean Marc Ribero
Keyword(s):  
Antenna System ◽  
Dual Band ◽  
Characteristic Mode ◽  
Mode Theory ◽  
Dual Band Antenna ◽  
Characteristic Mode Theory

Bandwidth improvement of planar antennas using a single-layer metamaterial substrate for X-band application

2020 ◽  
Vol 12 (9) ◽  
pp. 906-914
Author(s):  
O. Borazjani ◽  
M. Naser-Moghadasi ◽  
J. Rashed-Mohassel ◽  
R. A. Sadeghzadeh
Keyword(s):  
Microstrip Antenna ◽  
Single Layer ◽  
Dual Band ◽  
Planar Antennas ◽  
Radiation Characteristics ◽  
Dual Band Antenna ◽  
X Band ◽  
Field Radiation ◽  
Metallic Ring ◽  
Good Agreement

AbstractTo prevent far-field radiation characteristics degradation while increasing bandwidth, an attempt has been made to design and fabricate a microstrip antenna. An electromagnetic band gap (EBG) structure, including a layer of a metallic ring on a layer of Rogers 4003C substrate, is used. For a better design, a patch antenna with and without the EBG substrate has been simulated. The results show that the bandwidth can be improved up to 1.6 GHz in X-band by adding the EBG substrate. Furthermore, using this structure, a dual-band antenna was obtained as well. Finally, to validate the simulation results, a comparison has been done between simulation data and experimental results which demonstrate good agreement.

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