Design of miniaturized dual-polarized dipole antenna for 4G & sub-6 GHz 5G applications

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Anshul Agarwal ◽  
Pramod K. Singhal ◽  
Vandana V. Thakare
Keyword(s):  
Communication System ◽  
Return Loss ◽  
Dipole Antenna ◽  
Base Station ◽  
Open Loop ◽  
Impedance Bandwidth ◽  
Dual Polarization ◽  
Symmetric Structure ◽  
Base Station Antennas ◽  
Compact Size

Abstract Dual-polarization, enhanced gain and compact size is the basic need of the base station antennas whereas a modern communication system needs a wideband antenna which can cover both the LTE & 5G applications. In the present work, a cross dipole antenna is proposed for LTE & sub 6 GHz 5G frequency band for Base Station Antenna Applications. By introducing asymmetrically shaped pentagon slots in the dipole and open-loop dipole patches, wide impedance bandwidth of 1.65–4.05 GHz at a return loss of −14 dB are achieved for 4G & 5G applications. Two symmetric feeding lines orthogonal to each other have been used to obtain the dual-polarization. Also, a high stable gain of 7 ± 1 dBi & HPBW of 80 ± 5° was achieved over the entire operating band at both the ports due to the symmetric structure. The proposed antenna is compared for size and bandwidth with the structures already proposed in the literature and significant enhancement is observed to be used for Base station antennas.

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.

scholarly journals BROADBAND MICROSTRIP ANTENNA FOR 2G/3G/4G MOBILE BASE STATION APPLICATIONS

2019 ◽  
Vol 11 (2) ◽  
pp. 165-175 ◽  
Author(s):  
Wafaa Mohammed Hashim ◽  
Asst. prof. Dr. Adheed Hasan Sallomi
Keyword(s):  
Patch Antenna ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Impedance Matching ◽  
Base Station ◽  
Impedance Bandwidth ◽  
Large Bandwidth ◽  
Mobile Base Station ◽  
Cellular Mobile ◽  
Mobile Base

a staircase patch microstrip antenna with slots is proposed to cover the 2G/3G/4G cellular mobile base station bands, when the antenna is excited with a transmission line, creates several modes these modes are composite to obtain a large bandwidth. The proposed antenna operates in the band from 0.86 GHz to 4.78 GHz with an impedance bandwidth of 138%. The use of staircase patch antenna is to achieve more attractive performance such as wider bandwidth, better impedance matching and better radiation. Inserting different slots to the patch of the antenna to enhance the gain and return loss. The gain is obtained ranging from 2.18 dBi to 5.3 dBi. Good radiation efficiencies ranging from 70% to 97% is achieved.

scholarly journals Ultracompact Dual-Polarized Cross-Dipole Antenna for 5G Base Station Array of Low Wind Load

2021 ◽  
Author(s):  
Biying Han ◽  
Qi Wu ◽  
Chen Yu ◽  
Haiming Wang ◽  
Xiqi Gao ◽  
...  
Keyword(s):  
Ground Plane ◽  
Wind Load ◽  
Dipole Antenna ◽  
Base Station ◽  
Impedance Bandwidth ◽  
Defected Ground Structure ◽  
Metal Mesh ◽  
Projected Area ◽  
Dual Polarized ◽  
Very High

Very high wind loads represent one of the major problems for the ultralarge-scale 5G base station array at the sub-6 GHz band, where dozens of or hundreds of antennas are used. An ultracompact dual-polarized cross-dipole antenna with an extremely small overall projected area is presented. The array with low wind load is realized by miniaturized cross dipoles and the replacement of the traditional ground plane with a defected ground structure (DGS) and metal mesh reflector. The DGS is utilized to realize size reduction and isolation enhancement. The projected area of the antenna is reduced by 70%. Therefore, each antenna in the array can be independently packaged using a streamlined radome with a low wind load. And the inter-radome spacing is large enough to make holes that are used to further reduce wind load. The antenna prototype is designed, fabricated, and measured for the sub-1 GHz band. The measured results show that the impedance bandwidth is 680-970 MHz, the polarization isolation is higher than 20 dB, and the gain is around 6.5 dBi. It is verified that the proposed ultracompact antenna of high radiation performance is very suitable for an ultralarge-scale array of low wind load in a 5G base station.

scholarly journals Dual-polarized dipole radiation elements for the modern base station antennas

2019 ◽  
Vol 30 ◽  
pp. 05015
Author(s):  
Vladislav Komov ◽  
Victor Sledkov ◽  
Li ZiMeng
Keyword(s):  
Horizontal Plane ◽  
Beam Width ◽  
Base Station ◽  
Frequency Range ◽  
Dual Polarization ◽  
Dipole Radiation ◽  
Frequency Bands ◽  
Low Level ◽  
Base Station Antennas ◽  
Better Than

Two improved designs of wideband dual polarization antennas for base station. The first design is the crossed dipoles for the frequency bands 1695–2695 MHz. The presented shape of crossed dipole provides a low level of crosspolarization, VSWR better than 1.4, the isolation between polarizations is better than –33 dB and the beam width in the horizontal plane is 65±4 degrees. The second design is the square dipole in the frequency range 690–960 MHz provides the beam width in the horizontal plane 60±5 degrees, E-plane 58±3 degrees, H-plane 64±3 degrees, the isolation between polarizations better than –35dB.

The Dipole Antenna with Photonic Crystal Structure Used for Mobile Communication

2013 ◽  
Vol 448-453 ◽  
pp. 2163-2166
Author(s):  
Bin Lin ◽  
Ting Lin ◽  
Yang Ge ◽  
Rong Rong Wang ◽  
Yong Ping Guo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Mobile Communication ◽  
Communication System ◽  
Return Loss ◽  
Dipole Antenna ◽  
Photonic Crystal Structure ◽  
Frequency Range ◽  
Mobile Communication System ◽  
Important Significance

The antenna design and its manufacturing technology is one of the gordian technique in mobile communication system, the performance of antenna influences the performance of the mobile communication system directly. To mobile communication system, the study of antenna has important significance. The development of mobile communication system brings a new request to the antennas design. This paper start from dipole antenna and the structural theory of photonic crystal, bat around the superiority of the two, and make a combination, design a dipole antenna with photonic crystal structure which can work in 2GHz frequency range, small size, return loss in low and bandwidth is suitable for CDMA2000 mobile communication system, and we simulate and test the performance of this antenna, discuss how the parametric variation will influence the performance of antenna.

scholarly journals Design of Transparent Antenna for 5G Wireless Applications

Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 54
Author(s):  
Sanae Azizi ◽  
Laurent Canale ◽  
Saida Ahyoud ◽  
Georges Zissis ◽  
Adel Asselman
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Antenna Design ◽  
Impedance Bandwidth ◽  
Light Weight ◽  
Frequency Bandwidth ◽  
Frequency Range ◽  
Wireless Applications ◽  
Compact Size

This paper presents the design of a compact size band patch antenna for 5G wireless communications. This wideband antenna was designed on a glass substrate (12 × 11 × 2 mm3) and is optically transparent and compact. It consists of a radiation patch and a ground plane using AgHT-8 material. The antenna design comprises rectangular shaped branches optimized to attain the wideband characteristics. The calculated impedance bandwidth is 7.7% covering the frequency range of 25 to 27 GHz. A prototype of the antenna and various parameters such as return loss plot, gain plot, radiation pattern plot, and voltage standing wave ratio (VSWR) are presented and discussed. The simulated results of this antenna show that it is well suited for future 5G applications because of its transparency, flexibility, light weight, and wide achievable frequency bandwidth near the millimeter wave frequency band.

scholarly journals A Review on 5G Sub-6 GHz Base Station Antenna Design Challenges

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 2000
Author(s):  
Madiha Farasat ◽  
Dushmantha N. Thalakotuna ◽  
Zhonghao Hu ◽  
Yang Yang
Keyword(s):  
Wireless Networks ◽  
Return Loss ◽  
Base Station ◽  
Antenna Design ◽  
Compact Antenna ◽  
Base Station Antennas ◽  
Close Proximity ◽  
Design Challenges ◽  
Design Techniques

Modern wireless networks such as 5G require multiband MIMO-supported Base Station Antennas. As a result, antennas have multiple ports to support a range of frequency bands leading to multiple arrays within one compact antenna enclosure. The close proximity of the arrays results in significant scattering degrading pattern performance of each band while coupling between arrays leads to degradation in return loss and port-to-port isolations. Different design techniques are adopted in the literature to overcome such challenges. This paper provides a classification of challenges in BSA design and a cohesive list of design techniques adopted in the literature to overcome such challenges.

scholarly journals Ultracompact Dual-Polarized Cross-Dipole Antenna for 5G Base Station Array of Low Wind Load

2021 ◽  
Author(s):  
Biying Han ◽  
Qi Wu ◽  
Chen Yu ◽  
Haiming Wang ◽  
Xiqi Gao ◽  
...  
Keyword(s):  
Ground Plane ◽  
Wind Load ◽  
Dipole Antenna ◽  
Base Station ◽  
Impedance Bandwidth ◽  
Defected Ground Structure ◽  
Metal Mesh ◽  
Projected Area ◽  
Dual Polarized ◽  
Very High

Very high wind loads represent one of the major problems for the ultralarge-scale 5G base station array at the sub-6 GHz band, where dozens of or hundreds of antennas are used. An ultracompact dual-polarized cross-dipole antenna with an extremely small overall projected area is presented. The array with low wind load is realized by miniaturized cross dipoles and the replacement of the traditional ground plane with a defected ground structure (DGS) and metal mesh reflector. The DGS is utilized to realize size reduction and isolation enhancement. The projected area of the antenna is reduced by 70%. Therefore, each antenna in the array can be independently packaged using a streamlined radome with a low wind load. And the inter-radome spacing is large enough to make holes that are used to further reduce wind load. The antenna prototype is designed, fabricated, and measured for the sub-1 GHz band. The measured results show that the impedance bandwidth is 680-970 MHz, the polarization isolation is higher than 20 dB, and the gain is around 6.5 dBi. It is verified that the proposed ultracompact antenna of high radiation performance is very suitable for an ultralarge-scale array of low wind load in a 5G base station.

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