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A multiband antenna design comprising the future 5G mobile technology

Araujo Humberto Xavier, Freitas Antônio Evangelista, Prata David Nadler, Casella Ivan Roberto Santana, Capovilla Carlos Eduardo

Przegląd Elektrotechniczny

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2019

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R. 95, nr 2

108--111

EN

The pervasiveness of mobile internet, in conjunction to the ubiquitous computing of the internet-of-things has claimed the concept of 5G technology research to allow massive growth of machine communications. One of the main challenges is the scalability problem, which implies issues like small mobile device antennas to fit in the limited amount of space for the smartphone’s design, followed by radiation control and low cost. The purpose of this paper is to develop an antenna, which meets the next generation of the mobile technology 5G as well as other resources available and desired in a smartphone (GPS – 1575 MHz, WLAN – 2.4 GHz, 3G – 2.1 GHz, Brazilian 4G – 2.6 GHz e GSM – 900 – 1800 – 1900 – 2100 MHz). The design adopted only one ultra-wideband microstrip antenna that resonates in the frequencies of these technologies. This kind of antenna is thin, has low cost and good radiation control. Besides, this is the most popular type of antenna in mobile devices; the radiant elements use the manufacturing process of printed circuits. It is built in a plate composed by a conductor (the radiant element of the antenna), a substrate, and by another conductor, which is the ground plate. The principal feature of an ultra-wideband antenna is the usage of 1.5 GHz bandwidth or more. The prototype was manufactured and the simulation results for each type of technology resources are compared.

PL

Celem artykułu jest opracowanie mikropaskowej anteny obsługującej technologię 5G. Koszt anteny jest minimal;izowany przez wykorzystanie techniki obwodów drukowanych. Szerokopasmowa antena wykorzystuje pasmo 1.5 GHz oraz inne większe pasma. Testy każdej z anten potwierdziły jej założone parametry.

2

A Compact Circularly Polarized Multiband Microstrip Patch Antenna with Defective Ground Structure

Singh Ashish Kumar, Sharma Ankit, Lakshmanan M., Gangwar Deepak

International Journal of Electronics and Telecommunications

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2019

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Vol. 65, No. 2

195--201

EN

In this paper, a novel double-layer multiband circularly polarized microstrip patch antenna is proposed. The design employs the concept of slotted patch fed with proximity coupled feed having defected ground plane (DGS). The proposed antenna achieves multiple operating frequency bands including FB1 (11.15 GHz), FB2 (4.17 GHz), FB3 (4.87 GHz) and FB4 (1.98 GHz). The proposed antenna has obtained bandwidth of 12.98%, 4.7%, 4.69% and 5.39% at FB1, FB2, FB3 and FB4 bands, respectively. The proposed antenna also exhibits circular polarization in the frequency band FB4. The 3dB ARBW of the antenna is 9.23% at 11.2 GHz. Finally, a metallic cavity is used with the antenna to achieve a unidirectional radiation pattern. The designed antenna radiation characteristics are verified with the experimental results.

3

An effective medium ratio obeying meta-atom for multiband applications

Hossain M. J., Faruque M. R. I., Islam M. T., Islam S. S.

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2017

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Vol. 65, nr 2

139--147

EN

In this paper, an effective medium ratio obeying, negative refractive index, compact meta-atom was designed, manufactured and tested for operation in a multiband microwave regime. The proposed meta-atom structure obeyed better effective medium ratio. The results of the measurement were verified by the commercially available Computer Simulation Technology (CST) Studio Suite 2014 simulator. The effective medium ratio obeying meta-atom displayed multiband response, in conjunction with negative refractive index property over a certain frequency band in the microwave frequency span. Furthermore, a few parametric analyses were completed with the meta-atom, and the effective medium parameters were investigated. The sizes and complex scattering constitutive parameters of the proposed negative refractive index, compact meta-atom are applicable for multiband applications in microwave regime.

4

Dual-band multi slot patch antenna for wireless applications

Samsuzzaman M., Islam M.T., Faruque M. R. I.

Journal of Telecommunications and Information Technology

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2013

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nr 2

19--23

EN

In this paper a novel configuration of broadband multi slot antenna for C/X bands is presented and analyzed. By cutting two diamond slots in the middle of the rectangular patch and three triangular slots in the right side of the patch, resonances can be created. Microstrip feed line is used in the down side region of the patch. Antenna characteristics were simulated using a finite element method (HFSS). According to simulations, the proposed multiple slot antennas can provide two separated impedance bandwidths of 970 MHz (about 11.96% centred at 8.11 GHz band) and 890 MHz (about 9.76% centred at 9.42 GHz band) and stable radiation patterns, promising for satellite systems.