Circular ring UWB antenna with reconfigurable notch band at WLAN/sub 6 GHz 5G mobile communication

A coplanar waveguide (CPW)-fed circular slot antenna with wide tunable dual band-notched function and frequency reconfigurable characteristic is designed, and its performance is verified experimentally for ultra-wideband (UWB) communication applications. The dual band-notched function is achieved by using a T-shaped stepped impedance resonator (T-SIR) inserted inside the circular ring radiation patch and by etching a parallel stub loaded resonator (PSLR) in the CPW transmission line, while the wide tunable bands can be implemented by adjusting the dimensions of the T-SIR and the PSLR. The notch band reconfigurable characteristic is realized by integrating three switches into the T-SIR and the PSLR. The numerical and experimental results show that the proposed antenna has a wide bandwidth ranging from 2.7 GHz to 12 GHz with voltage standing wave ratio (VSWR) less than 2, except for the two notch bands operating at 3.8–5.9 GHz and 7.7–9.2 GHz, respectively. In addition, the proposed antenna has been optimized to a compact size and can provide omnidirectional radiation patterns, which are suitable for UWB communication applications.

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DESIGN OF CPW FED UWB ANTENNA WITH DUAL NOTCH BAND USING T-SHAPE STUB

Telecommunications and Radio Engineering ◽

10.1615/telecomradeng.v79.i19.40 ◽

2020 ◽

Vol 79 (19) ◽

pp. 1713-1723

Author(s):

Tapan Mandal ◽

P. Mondal ◽

S. Das

Keyword(s):

Uwb Antenna ◽

Notch Band

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5G Mobile Communication, Challenges: A Survey

Bulletin of Scientific Research ◽

10.34256/bsr2016 ◽

2020 ◽

Vol 2 (1) ◽

pp. 35-42

Author(s):

Hemalatha R ◽

Rhesa M.J. ◽

Revathi S

Keyword(s):

Mobile Communication ◽

Traffic Management ◽

Radiation Effects ◽

Critical Infrastructure ◽

Security Threats ◽

Technological Advancement ◽

Data Traffic ◽

Communication Challenges ◽

5G Mobile Communication ◽

Living Organisms

The hest for technological advancement in mobile communication is due to augmentation of wireless user. The deployment of 5G mobile communication is less than 4G mobile communication due to challenges in security like cyberwarfare, espionage, critical infrastructure threats. Nevertheless, critic of neurological discomforts, tissue damage in living organisms occur in the existence of EMF radiation. Also, physical scarcity for spectral efficiency arises due to ubiquitous data traffic. Inspite of these disputes data rate, low latency, device to device communication is also a challenge. In this paper we provide a survey on radiation effects, security threats, traffic management.

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An optimized small compact rectangular antenna with meta-material based on fast multi-objective optimization for 5G mobile communication

Journal of Computational Electronics ◽

10.1007/s10825-021-01723-6 ◽

2021 ◽

Author(s):

M. Nouri ◽

S. Abazari Aghdam ◽

A. Jafarieh ◽

N. K. Mallat ◽

M. Haizal Jamaluddin ◽

...

Keyword(s):

Mobile Communication ◽

Multi Objective Optimization ◽

Multi Objective ◽

5G Mobile Communication

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High-Gain Vivaldi Antenna with Wide Bandwidth Characteristics for 5G Mobile and Ku-Band Radar Applications

Electronics ◽

10.3390/electronics10060667 ◽

2021 ◽

Vol 10 (6) ◽

pp. 667

Author(s):

Raza Ullah ◽

Sadiq Ullah ◽

Farooq Faisal ◽

Rizwan Ullah ◽

Dong-you Choi ◽

...

Keyword(s):

Mobile Communication ◽

Middle Layer ◽

Bottom Layer ◽

High Gain ◽

Mirror Image ◽

Radar Applications ◽

Vivaldi Antenna ◽

5G Mobile Communication ◽

Element Array ◽

Ku Band

In this paper, antipodal Vivaldi antenna is designed for 5th generation (5G) mobile communication and Ku-band applications. The proposed designed has three layers. The upper layer consists of eight-element array of split-shaped leaf structures, which is fed by a 1-to-8 power divider network. Middle layer is a substrate made of Rogers 5880. The bottom layer consists of truncated ground and shorter mirror-image split leaf structures. The overall size of the designed antenna is confined significantly to 33.31 × 54.96 × 0.787 (volume in mm3), which is equivalent to 2λo× 3.3λo× 0.05λo (λo is free-space wavelength at 18 GHz). Proposed eight elements antenna is multi-band in nature covering Ku-bands (14.44–20.98 GHz), two millimeter wave (mmW) bands i.e., 24.34–29 GHz and 33–40 GHz, which are candidate frequency bands for 5G communications. The Ku-Band is suitable for radar applications. Proposed eight elements antenna is very efficient and has stable gain for 5G mobile communication and Ku-band applications. The simulation results are experimentally validated by testing the fabricated prototypes of the proposed design.

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