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Journal ArticleDOI

Design and Simulation of MIMO Antennas for Mobile Communication

01 Dec 2020-Vol. 994, Iss: 1, pp 012033
About: The article was published on 2020-12-01 and is currently open access. It has received 7 citations till now. The article focuses on the topics: Mobile telephony.
Citations
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Proceedings ArticleDOI
21 Dec 2022
TL;DR: In this paper , a rectangular microstrip patch antenna (RMPA) is designed and analyzed using CST software and the results after simulation are return loss, VSWR, directive gain, and bandwidth of -55.7 dB, 1.0032, 6.81 dBi, and 110 MHz.
Abstract: A rectangular microstrip patch antenna (RMPA) is designed and analyzed in this paper. FR-4 is used as a substrate material, whose dielectric permittivity is 4.3. This antenna is designed and simulated using CST software. Return loss, VSWR, directive gain, and bandwidth are obtained from the given simulation. The results after simulation are return loss, VSWR, directive gain, and bandwidth of -55.7 dB, 1.0032, 6.81 dBi, and 110 MHz, respectively. The main objective of that paper was to increase return loss, bring the VSWR closer to 1, and increase directive gain. This antenna can be used in radars, mobile phones, and wireless LAN applications.
Proceedings ArticleDOI
21 Dec 2022
TL;DR: In this paper , a microstrip patch antenna design, simulation, and analysis are done to reduce the S-parameter and get a standard VSWR which will have a value of less than two or close to one, as well as to improve the antenna's directivity gain and give it a good bandwidth.
Abstract: In this age of information technology, wireless communication is becoming more popular every day. And these wireless applications have some effect on the antenna. In this paper, a microstrip patch antenna design, simulation, and analysis are done. And to make this design, Rogger RT/Duroid 5880, whose dielectric permittivity is 4.3, has been used as the substrate material. Besides, antenna thickness and tangent loss are 0.1 mm and 0.035, respectively. After simulation, the antenna has a return loss VSWR, directivity gain, and bandwidth are -19.89 dB, 1.22, 6.73 dBi, and 128.9 MHz, respectively. The motive of this antenna is to reduce the S-parameter and get a standard VSWR, which will have a value of less than two or close to one, as well as to improve the antenna's directivity gain and give it a good bandwidth. This antenna can be used in radars, mobile phones, wireless LANs, and other wireless applications.
Proceedings ArticleDOI
21 Dec 2022
TL;DR: In this article , a microstrip patch antenna design, simulation, and analysis are done to reduce the S-parameter and get a standard VSWR which will have a value of less than two or close to one, as well as to improve the antenna's directivity gain and give it a good bandwidth.
Abstract: In this age of information technology, wireless communication is becoming more popular every day. And these wireless applications have some effect on the antenna. In this paper, a microstrip patch antenna design, simulation, and analysis are done. And to make this design, Rogger RT/Duroid 5880, whose dielectric permittivity is 4.3, has been used as the substrate material. Besides, antenna thickness and tangent loss are 0.1 mm and 0.035, respectively. After simulation, the antenna has a return loss VSWR, directivity gain, and bandwidth are -19.89 dB, 1.22, 6.73 dBi, and 128.9 MHz, respectively. The motive of this antenna is to reduce the S-parameter and get a standard VSWR, which will have a value of less than two or close to one, as well as to improve the antenna's directivity gain and give it a good bandwidth. This antenna can be used in radars, mobile phones, wireless LANs, and other wireless applications.
Proceedings ArticleDOI
21 Dec 2022
TL;DR: In this paper , a rectangular microstrip patch antenna (RMPA) is designed and analyzed using CST software and the results after simulation are return loss, VSWR, directive gain, and bandwidth of -55.7 dB, 1.0032, 6.81 dBi, and 110 MHz.
Abstract: A rectangular microstrip patch antenna (RMPA) is designed and analyzed in this paper. FR-4 is used as a substrate material, whose dielectric permittivity is 4.3. This antenna is designed and simulated using CST software. Return loss, VSWR, directive gain, and bandwidth are obtained from the given simulation. The results after simulation are return loss, VSWR, directive gain, and bandwidth of -55.7 dB, 1.0032, 6.81 dBi, and 110 MHz, respectively. The main objective of that paper was to increase return loss, bring the VSWR closer to 1, and increase directive gain. This antenna can be used in radars, mobile phones, and wireless LAN applications.
Proceedings ArticleDOI
21 Dec 2022
TL;DR: In this paper , the microstrip patch antenna was used as a substrate material to achieve a standard VSWR while minimizing return loss, and the simulation results showed that the antenna return loss was -17.264, 1.3176, 6.94 dBi, and 116.6 MHz.
Abstract: The research article looked at the microstrip patch antenna, which was made for wireless applications. FR-4 (lossy) has been used as a substrate material, whose dielectric permittivity is 4.3. This paper plans a new type of antenna that can be used in wireless systems like radars, cell phones, and wireless local area networks (LANs). This antenna aims to achieve a standard VSWR while minimizing return loss. Software from the Computer Simulation Technology (CST) Suite Studio 2019 version was used to run the simulation and get the right amount of gain, VSWR, and bandwidth. After simulation, antenna return loss, VSWR, directive gain, and bandwidth are found to be -17.264, 1.3176, 6.94 dBi, and 116.6 MHz, respectively.
References
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Journal ArticleDOI
TL;DR: In this paper, a 4-port multiple-input-multiple-output (MIMO) antenna array operating in the mm-wave band for 5G applications is presented, where an identical two-element array excited by the feed network based on a T-junction power combiner/divider is introduced, while the ground plane is made defected with rectangular, circular and a zigzag-shaped slotted structure to enhance the radiation characteristics of the antenna.
Abstract: We present a 4-port Multiple-Input-Multiple-Output (MIMO) antenna array operating in the mm-wave band for 5G applications. An identical two-element array excited by the feed network based on a T-junction power combiner/divider is introduced in the reported paper. The array elements are rectangular-shaped slotted patch antennas, while the ground plane is made defected with rectangular, circular, and a zigzag-shaped slotted structure to enhance the radiation characteristics of the antenna. To validate the performance, the MIMO structure is fabricated and measured. The simulated and measured results are in good coherence. The proposed structure can operate in a 25.5–29.6 GHz frequency band supporting the impending mm-wave 5G applications. Moreover, the peak gain attained for the operating frequency band is 8.3 dBi. Additionally, to obtain high isolation between antenna elements, the polarization diversity is employed between the adjacent radiators, resulting in a low Envelope Correlation Coefficient (ECC). Other MIMO performance metrics such as the Channel Capacity Loss (CCL), Mean Effective Gain (MEG), and Diversity gain (DG) of the proposed structure are analyzed, and the results indicate the suitability of the design as a potential contender for imminent mm-wave 5G MIMO applications.

156 citations

Proceedings ArticleDOI
21 Mar 2016
TL;DR: Various parameters, for example the gain, S parameters, directivity and efficiency of the designed rectangular antenna are obtained from ADS Momentum.
Abstract: The purpose of this paper is to design a microstrip rectangular antenna in Advance Design System Momentum (ADS). The resonant frequency of antenna is 4.1GHz. The reflection coefficient is less than −10dB for a frequency range of 3.1GHz to 5.1 GHz. The proposed rectangular patch antenna has been devise using Glass Epoxy substrate (FR4) with dielectric constant (er = 4.4), loss tangent (tan δ) equal to 0.02. This rectangular patch is excited using transmission lines of particular length and width. Various parameters, for example the gain, S parameters, directivity and efficiency of the designed rectangular antenna are obtained from ADS Momentum.

95 citations

Journal ArticleDOI
TL;DR: In this paper, a planar planar multiband five-element MIMO antenna system is presented for the Internet-of-Things (IoT) platform. And the antenna elements are integrated with a wideband sensing antenna for the spectrum sensing in 0.668-1.94 GHz band.
Abstract: A novel compact single-substrate planar multiband five-element multiple-input multiple-output (MIMO) antenna system is presented in this paper. The tunable two-element folded meandered MIMO antenna covers the long-term evolution frequency bands below 1 GHz (687–813 MHz) and radio frequency identification bands centered around 2.4 and 5.8 GHz. The other two-element compact MIMO antennas operate over 754–971 MHz, 1.65–1.83 GHz, 2–3.66 GHz, and 5.1–5.6 GHz frequency bands. Furthermore, the proposed antenna elements are integrated with a wideband sensing antenna for the spectrum sensing in 0.668–1.94 and 3–4.6 GHz, which also acts as the ground plane for the MIMO elements in the cognitive radio application environment. The antenna is fabricated on a 65 mm $\times \,\, 120$ mm $\times \,\, 1.56$ mm low-cost FR-4 substrate. The antenna’s radiation characteristics are experimentally verified, and the results are in agreement with the full-wave simulation. The 3-D radiation pattern-based envelope correlation coefficient of the MIMO antennas is also experimentally verified which is below the desired value of 0.5. Finally, to show its utility at the Internet-of-Things platform, the antenna is tested in the realistic application environment.

89 citations

Journal ArticleDOI
TL;DR: In this paper, the authors proposed a multiple antenna system for 5G smartphones operating at 3.5 GHz for multiple-input multiple-output (MIMO) operation in smartphones, which adopted the unit open-end slot antenna fed by Inverted-L microstrip with tuning stub.
Abstract: In this paper, the systematic design of a multiple antenna system for 5G smartphone operating at 3.5 GHz for multiple-input multiple-output (MIMO) operation in smartphones is proposed. The smartphone is preferred to be lightweight, thin, and attractive, and as a result metal casings have become popular. Using conventional antennas, such as a patch antenna, Inverted-F antennas, or monopole, in proximity to metal casing leads to decreasing its total efficiency and bandwidth. Therefore, a slot antenna embedded in the metal casing can be helpful, with good performance regarding bandwidth and total efficiency. The proposed multiple antenna system adopted the unit open-end slot antenna fed by Inverted-L microstrip with tuning stub. The measured S-parameters results agree fairly with the numerical results. It attains 200 MHz bandwidth at 3.5 GHz with ports isolation of (≤−13 dB) for any two antennas of the system. The influence of the customer’s hand for the proposed multiple antenna system is also considered, and the MIMO channel capacity is computed. The maximum achievable MIMO channel capacity based on the measured result is 31.25 bps/Hz and is about 2.7 times of 2 × 2 MIMO operation.

57 citations

Journal ArticleDOI
Da Qing Liu1, He Jia Luo1, Ming Zhang1, Huai Lin Wen1, Bin Wang1, Jun Wang1 
TL;DR: In this article, a low-profile MIMO antenna is proposed for applications in mobile devices, which can work from 3.4 to 3.8 GHz with a profile of 0.97 mm.
Abstract: A low-profile MIMO antenna is proposed for applications in mobile devices. The antenna is designed by placing multiple inverted-F antennas (IFAs) on an artificial magnetic conductor (AMC) ground. The IFAs excite two distinct modes on the AMC, i.e., the local resonant mode and the TM0 surface-wave mode. By combining the two modes, a fractional bandwidth of 12% is realized with a profile of $0.01\lambda _{0}$ , where $\lambda _{0}$ is the free-space wavelength at the center frequency. Within the working band, the radiation efficiencies are higher than 50%, the mutual couplings among antennas lower than −10 dB, and envelope correlation coefficients (ECCs) lower than 0.2. To validate the antenna design, a MIMO antenna with eight elements is fabricated and measured. The antenna can work from 3.4 to 3.8 GHz. The total thickness of the antenna is only 0.97 mm, which can be integrated into smartphones as their back-covers without occupying the inner space of the device. The throughput achieved by the antenna in an outdoor environment is also tested using a fifth-generation (5G) MIMO system. The MIMO performance will be discussed and compared with traditional antennas.

42 citations