scholarly journals Broadband Dual-Polarized Base Station Antenna for Fifth-Generation (5G) Applications

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2701 ◽  
Author(s):  
Hua Tang ◽  
Xianzheng Zong ◽  
Zaiping Nie
Keyword(s):  
Reflection Coefficient ◽  
Mobile Communications ◽  
Base Station ◽  
Radiation Patterns ◽  
Operating Band ◽  
Fifth Generation ◽  
Dual Polarized ◽  
Half Power ◽  
5G Mobile Communications

A broadband dual-polarized base station antenna with special designed feeding structures is investigated in this paper. The proposed antenna contains two pairs of crossed dipoles, two specially designed feeding connectors, two pieces of dielectric pads, a supporter (also a balun), and a reflector. To verify the designed antenna, a prototype is fabricated and measured. The antenna attains a bandwidth of around 46.5% operating over 3.14–5.04 GHz under reflection coefficient lower than −15 dB, and the port-to-port isolation is higher than 32.5 dB. It also achieves very stable radiation patterns with half power beam widths of 71.8° ± 2.5° in both the horizontal and vertical planes and gains of around 8 dBi over its operating band. Besides, the mechanism of the obtained good performances is clearly explained from the angle of current. All of the features ensure that the proposed antenna is suitable for the fifth-generation (5G) mobile communications.

A Single Band Antenna Design for Future Millimeter Wave Wireless Communication at 38 GHz

2018 ◽  
Vol 3 (1) ◽  
pp. 35 ◽  
Author(s):  
Cihat Şeker ◽  
Turgut Ozturk ◽  
Muhammet Tahir Güneşer
Keyword(s):  
Millimeter Wave ◽  
Mobile Communications ◽  
Return Loss ◽  
Computer Software ◽  
Dielectric Substrate ◽  
Single Band ◽  
Microstrip Patch ◽  
Fifth Generation ◽  
Wireless Application ◽  
5G Mobile Communications

In this proposed paper, a single band microstrip patch antenna for fifth generation (5G) wireless application was presented. 28, 38, 60 and 73 GHz frequency bands have been allocated for 5G mobile communications by International Telecommunications Union (ITU). In this paper, we proposed an antenna, which is suitable for the millimeter wave frequency. The single band antenna consists of new slot loaded on the radiating patch with the 50 ohms microstrip line feeding used. This single band antenna was simulated on a FR4 dielectric substrate have relative permittivity 4.4, loss tangent 0.02, and height 1.6 mm. The antenna was simulated by Electromagnetic simulation, computer software technology High Frequency Structural Simulator. And simulated result on return loss, VSWR, radiation pattern and 3D gain was presented. The parameters of the results well coherent and proved the literature for millimeter wave 5G wireless application at 38 GHz.

scholarly journals Antenna for 5G mobile Communications Systems at 10 GHz

2018 ◽  
Vol 7 (3.36) ◽  
pp. 13
Author(s):  
Muhammad Sani Yahya ◽  
Ishaku Abdul Dalyop ◽  
Yusuf Saleh ◽  
Murtala Aminu-Baba
Keyword(s):  
Radio Astronomy ◽  
Mobile Communications ◽  
Space Research ◽  
Dual Band ◽  
Maximum Gain ◽  
Fifth Generation ◽  
Communications Systems ◽  
Mobile Communications Systems ◽  
Simulation Results ◽  
5G Mobile Communications

The design of compact dual band grid array antenna (GAA) designed on FR-4 substrate for future Fifth Generation (5G) Mobile Communications at 10 GHz is reported. The proposed antenna uses coaxial technique of feeding and has a dimension of 48 mm × 55 mm × 1.6 mm. Simulation results using CST microwave studio illustrates that the antenna has a band from 10.03 GHz to 10.68 GHz and another band from 10.7 GHz to 12.23 GHz. This excludes the 10.68 – 10.7 GHz band in which emissions were forbidden by the Radio Regulations in the sense that it has been allocated for the Radio Astronomy, Space Research and Earth Exploration Satellite (passive). The antenna has a maximum gain of 8.03 dBi at 10 GHz, thus a good candidate for the future 5G mobile communications. 

scholarly journals High Isolation Dual-Polarized Patch Antenna with Hybrid Ring Feeding

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Xian-Jing Lin ◽  
Ze-Ming Xie ◽  
Pei-Sheng Zhang
Keyword(s):  
Reflection Coefficient ◽  
Patch Antenna ◽  
Wide Bandwidth ◽  
High Isolation ◽  
Operating Band ◽  
Feeding Structure ◽  
Dual Polarized ◽  
Horizontal Substrate ◽  
Wide Operating ◽  
Hybrid Ring

This paper presents a hybrid ring feeding dual-polarized patch antenna with high isolation in a wide working band. The proposed antenna consists of a circular radiating patch printed on the upper horizontal substrate, two pairs of Γ shaped strips printed on two vertical substrates, and a hybrid ring feeding network printed on the lower two horizontal substrates. The proposed antenna adopts Γ shape strips coupled feeding structure to achieve a wide operating band. Furthermore, a hybrid ring feeding structure with high isolation in a wide bandwidth, which is firstly proposed, is applied as feeding network. When one port is excited, the feeding network can realize twice the power cancellation. Thus, high ports isolation characteristics can be obtained. A prototype of the proposed antenna is fabricated and measured. Measured results show that the 10 dB reflection coefficient bandwidths of the two ports are both about 38.7%, with port isolation higher than 40 dB through most of the band, and the cross-polarizations are below −24 dB.

scholarly journals Triple-Band Dual-Polarized Dipole Antenna for 5G Sub-6 GHz Communications

2021 ◽  
Author(s):  
Lixia Yang ◽  
Hafiz Usman Tahseen ◽  
Syed Shah Irfan Hussain ◽  
Wang Hongjin
Keyword(s):  
Return Loss ◽  
Beam Width ◽  
High Gain ◽  
Dipole Antenna ◽  
Base Station ◽  
Iot Applications ◽  
Measured Impedance ◽  
Dual Polarized ◽  
Half Power ◽  
Triple Band

Abstract A triple-band ±45° dual-polarized dipole antenna is presented in this paper. The proposed antenna covers two bands from n77 and one from n79 5G NR frequency spectrums. The profile antenna exhibits the measured impedance bandwidths 3.6-3.85 GHz, 4.05-4.2 GHz and 4.8- 5.15 GHz with S11, S22 < - 15dB return loss. Antenna is fabricated with four substrates; one radiator, one reflector and two feeding baluns. Antenna is designed and optimized with HFSS simulator and fabricated for experimental verification. Antenna gives a stable radiation pattern with 8.55dBi high gain and 70° half power beam width (HPBW) that makes it a good candidate for wireless 5G sub-6 GHz and multiband base station applications. Finally, antenna is tested in a realistic application environment to show the utility of the proposed antenna for wireless sub-6 GHz IoT applications.

A Single Band Antenna Design for Future Millimeter Wave Wireless Communication at 38 GHz

2018 ◽  
Vol 2 (2) ◽  
pp. 35 ◽  
Author(s):  
Cihat Şeker ◽  
Turgut Ozturk ◽  
Muhammet Tahir Güneşer
Keyword(s):  
Millimeter Wave ◽  
Mobile Communications ◽  
Return Loss ◽  
Computer Software ◽  
Dielectric Substrate ◽  
Single Band ◽  
Microstrip Patch ◽  
Fifth Generation ◽  
Wireless Application ◽  
5G Mobile Communications

In this proposed paper, a single band microstrip patch antenna for fifth generation (5G) wireless application was presented. 28, 38, 60 and 73 GHz frequency bands have been allocated for 5G mobile communications by International Telecommunications Union (ITU). In this paper, we proposed an antenna, which is suitable for the millimeter wave frequency. The single band antenna consists of new slot loaded on the radiating patch with the 50 ohms microstrip line feeding used. This single band antenna was simulated on a FR4 dielectric substrate have relative permittivity 4.4, loss tangent 0.02, and height 1.6 mm. The antenna was simulated by Electromagnetic simulation, computer software technology High Frequency Structural Simulator. And simulated result on return loss, VSWR, radiation pattern and 3D gain was presented. The parameters of the results well coherent and proved the literature for millimeter wave 5G wireless application at 38 GHz.

scholarly journals A Differentially Driven Dual-Polarized Dual-Wideband Complementary Antenna for 2G/3G/LTE Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Botao Feng ◽  
Shufang Li ◽  
Wenxing An ◽  
Weijun Hong ◽  
Sixing Yin
Keyword(s):  
Frequency Band ◽  
Patch Antenna ◽  
Lower Layer ◽  
Base Station ◽  
Radiation Patterns ◽  
Dual Polarization ◽  
Lte Networks ◽  
High Isolation ◽  
Lower Frequency Band ◽  
Dual Polarized

A novel differentially driven dual-polarized dual-wideband complementary patch antenna with high isolation is proposed for 2G/3G/LTE applications. In order to generate dual-polarization and dual-wideband properties, a pair of biorthogonal dual-layerη-shaped tapered line feeding structures is utilized to feed two pairs of dual-layer U-shaped patches, respectively. The upper-layer U-shaped patches mainly serve the upper frequency band, while the lower-layer ones chiefly work for the lower frequency band. Besides, a horned reflector is introduced to improve radiation patterns and provide stable gain. The prototype antenna can achieve a bandwidth of 25.7% (0.78 GHz–1.01 GHz) with a stable gain of7.8±0.7 dBi for the lower band, and a bandwidth of 45.7% (1.69 GHz–2.69 GHz) with a gain of9.5±1.1 dBi for the upper band. Input isolation exceeding 30 dB has been obtained in the wide bandwidth. Thus, it can be potentially used as a base station antenna for 2G/3G/LTE networks.

scholarly journals A Single Band Antenna Design for Future Millimeter Wave Wireless Communication at 38 GHz

2018 ◽  
Vol 2 (2) ◽  
pp. 34-38 ◽  
Author(s):  
Cihat Şeker ◽  
Muhammet Tahir Güneşer
Keyword(s):  
Millimeter Wave ◽  
Mobile Communications ◽  
Return Loss ◽  
Computer Software ◽  
Dielectric Substrate ◽  
Single Band ◽  
Microstrip Patch ◽  
Fifth Generation ◽  
Wireless Application ◽  
5G Mobile Communications

Abstract In this proposed paper, a single band microstrip patch antenna for fifth generation (5G) wireless application was presented. 28, 38, 60 and 73 GHz frequency bands have been allocated for 5G mobile communications by International Telecommunications Union (ITU). In this paper, we proposed an antenna, which is suitable for the millimeter wave frequency. The single band antenna consists of new slot loaded on the radiating patch with the 50 ohms microstrip line feeding used. This single band antenna was simulated on a FR4 dielectric substrate have relative permittivity 4.4, loss tangent 0.02, and height 1.6 mm. The antenna was simulated by Electromagnetic simulation, computer software technology High Frequency Structural Simulator. And simulated result on return loss, VSWR, radiation pattern and 3D gain was presented. The parameters of the results well coherent and proved the literature for millimeter wave 5G wireless application at 38 GHz.

scholarly journals High-reliability, High-performance 25 Gb/s Directly Modulated Uncooled Lasers for 5G Wireless Communications

2021 ◽  
Vol 5 (1) ◽  
pp. p56
Author(s):  
Jack Jia-Sheng Huang ◽  
S.C. Huang ◽  
NiYeh Wu ◽  
Deo Yu ◽  
C.K. Wang ◽  
...  
Keyword(s):  
Mobile Communications ◽  
High Performance ◽  
High Reliability ◽  
Single Mode ◽  
Threshold Current ◽  
Component Reliability ◽  
Fifth Generation ◽  
High Bandwidth ◽  
Semiconductor Laser Diodes ◽  
5G Mobile Communications

Semiconductor laser diodes are important components for fifth-generation wireless technologies. To meet 5G wireless specifications, ever increasing performance and reliability requirements of each component become necessary to guarantee uptime air service. In this paper, we present highly reliable 25G DFB uncooled lasers that exhibit low threshold current, high single-mode, high bandwidth, and excellent eye pattern for uncooled operations of -40 to 85°C. Ultra-high component reliability is demonstrated to ensure stable operations for 5G mobile communications.

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