Journal of Telecommunication Study

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Total articles ≅ 9
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Mary Paliwal Kare, B. N. Jyothi
Abstract:
For millimetre wave technology (25GHz–30GHz), a rectangular MIMO antenna is created. The design of this antenna radiates at a frequency of 27GHz and comprises of nine numbers of cells arranged in a 3x3 array. Each unit cell has an SRR and a hexagonal patch with a Meta material substrate (MTM). The developed antenna has a gain of 3db and operates between 25 and 30 GHz. The proposed configuration has a small overall antenna size of 52 mm by 23 mm, making it simple to build.
Shilpa Nandamuri, Shankar Stevens
Abstract:
A four-port DGS (defective ground structure) MIMO antenna is the subject of an inquiry. The proposed design in this study operates at a range of frequencies (1.8 GHz NB-IoT band, 2.4 GHz ISM band, 3.1 GHz sub 6 GHz, Wi-Max, and 4.8 GHz 5G connectivity band). The antenna is driven by an excited microstrip transmission line. All ports of the recommended MIMO antenna are isolated by less than -15dB, and its tiny (20 cm by 15 cm) footprint. It also takes into account radiation characteristics including s-parameters, radiation pattern, directivity, gain, return loss, and bandwidth. Measurements of MIMO performance such the Envelop correlation coefficient (ECC), diversity gain (DG), total active reflection coefficient (TARC), and mean effective gain (MEG) are also employed to ensure proper diversity performance. Utilizing CST Microwave Studio, the proposed antenna is examined. The resonant frequencies of antennas 1, 2, 3, and 4 are 1.8 GHz, 2.4 GHz, 3.1 GHz, and 4.8 GHz, respectively. The greatest gain it provides is 9.15dB. There is 20 dB isolation between ports.
K. S. Harsha, D. Divya
Abstract:
Multiple input-multiple output, or MIMO, is a wireless communication antenna system that employs multiple antennas at both the source and the destination. MIMO improves radio frequency system capacity, which results in a more dependable connection and less congestion. A low profile directional radial antenna is called a microstrip antenna. These are easy and affordable. They can be applied to some different things, such as mobile, radio, wireless, satellite, missile, and air, space, and ground vehicles. The fifth generation (5G) technological standard for broadband cellular networks is now used in telecommunications. The main benefit of this network is that it has more bandwidth, which eventually results in faster download speeds of up to 10 gigabytes per second. The Microstrip Antenna, which satisfies specific parameters including physical size, low profile, and ease of fabrication, is the most crucial component to support 5G communication. A novel U-shaped MIMO antenna that can be used for dual-band applications is proposed in this project. The proposed antenna needs to be compact and have attributes like a good VSWR, gain, bandwidth, return loss, and directivity, among others.
C. Ahalya, Avuku Jyothi, H. Supriya, D. Heena Kousar
Abstract:
Today, one of the key topics of study in the field of communication systems is wireless technology, and no studies of communication systems is complete without a grasp of how antennas work and are made. Numerous scholars have investigated antennas for various wireless communication systems. The conceived, created, and tested omnidirectional microstrip patch antenna (MPA) is the subject of this study. The antenna's operational bandwidth is a good fit for a variety of applications. Microstrip patch antennas are the ideal option for communication systems engineers due to its effectiveness and advantages, which include low cost, low profile, and low weight. Due to the fact that they may combine with microwave circuits, they are ideal for applications like cell devices, many others, including WLAN applications and navigational systems. In this project, a small rectangular patch antenna is created. The research of a two- or four-element array antenna has been the focus of the work's last section. The optimization of a 1.9GHz rectangular probe fed patch antenna in the design and simulation of patch antennas. According to experimental findings, the voltage standing wave ratio, insertion loss and capacity.
Sivasankari Narasimhan, Karthik Vishnu E K, Mugesh Marachan M K S
Abstract:
Design of radio-frequency identification tag with proper signal receiving and transmitting capability is now a challenging task. For that many kinds of antennas are proposed. This paper provides one such kind of design, incorporating the design of monopole antenna and micro-strip antenna. The operating frequency ranges are designed for 2.2–2.6 GHz and 5.3–6.8 GHz, which is suitable for RFID operation bands. Monopole antenna is fabricated in ‘F’ shape. FR-4 dielectric material has been used with 38 x 45 x 1.6 mm3 size. Return loss, VSWR, directivity and gain parameters are analysed using ANSYS HFSS software. The structure of ‘F’ pattern makes the antenna suitable for RFID applications.
Ankit Kumar Pandey, Arun Kumar Mishra
Abstract:
Wireless sensor networks are designed to remotely monitor physical or environmental attributes such as temperature, pressure, light, sound, etc. They generally comprise embedded system units consisting of sensing, processing, and communication units inside them. Such Wireless sensors can be deployed in extreme conditions like deep forests, high or low-temperature areas, industrial setup, etc. where continuous manual surveillance is not possible. In this paper, Wireless Sensor networks have been discussed in detail. Their architecture, operational characteristics, and challenges associated with setting up and managing the Wireless Sensor Networks have been discussed.
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