i-manager's Journal on Communication Engineering and Systems (JCS)


Volume 8 Issue 3 May - July 2019

Research Paper

Ring Shaped Patch With CPW-Fed for 5G Application

Ribhu Abhusan Panda* , Debasish Mishra**, Harihar Panda***
*-** Department of Electronics and Telecommunication Engineering, VSS University of Technology, Burla, Odisha, India.
*** Department of Physics, S. K. C. G Autonomous College, Paralakhemundi, Odisha, India.
Panda, R. A., Mishra, D., and Panda, H. (2019). Ring Shaped Patch With CPW-Fed for 5G Application. i-manager's Journal on Communication Engineering and Systems, 8(3), 1-6. https://doi.org/10.26634/jcs.8.3.16857

Abstract

In this research paper, the alteration of conventional circular patch with coplanar waveguide (CPW) fed antenna, commonly used for wireless communication is discussed. Ground plane is modified and implemented on the substrate with specific dimensions. The substrate is having the dimensions 20 mm × 20 mm with a height of 1.6 mm. FR4 epoxy dielectric material is chosen for the substrate. The design has been done for the 26 GHz application which includes 5G mobile network. ANSYS HFSS is used for simulating the designed antenna. Focus has been made on the S11 plot (<10dB) to find out the resonant frequency. S11 -Parameter, VSWR, Antenna Gain, Directivity, Radiation Efficiency, and Surface Current have been found out from the simulation results. Along with sharpness at the resonant frequency of 26 GHz, the CPW can increase the value almost 30% more than the value without it. The proposed structure has S11 value -26.9 dB at the desired frequency of 26 GHz with a high directivity of 6.94 dB.

Research Paper

Compact Dumbbell Shape Antenna for S-Band Communication

P. Jothilakshmi * , Mohana Sundaram R.**
*-** Department of Electronics and Communication Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, India.
Jothilakshmi, P. and Sundaram, M. R. (2019). Compact Dumbbell Shape Antenna for S-Band Communication. i-manager's Journal on Communication Engineering and Systems, 8(3), 7-12. https://doi.org/10.26634/jcs.8.3.16523

Abstract

This manuscript details the fabrication and the characterization of Dumbbell shape antenna with numerical analysis. 3 The overall dimension of the dumbbell shaped antenna is 50 x 50 x 1.6 mm , the insulating substrate material FR4 is used due to its low cost and easy availability. The thickness of the dielectric substrate is 1.6 mm, which has relative permittivity of 4.4, and loss tangent of 0.025. This research work characterizes antenna parameters such as radiation losses, radiation gain, field pattern, and Voltage Standing Wave Ratio (VSWR). The results prove that the gain and radiation characteristics of the proposed radiator are excellent. The geometrical optimization of this study uses numerical solver CST Studio Suite 2017, which is based on Finite Integration Technology (FIT), an excellent tool for designing, simulating and optimizing electromagnetic systems with accuracy. It preserves basic topological properties of the continuous equations such as conservation of charge and energy. This printed patch antenna is designed to work at around frequency of 2.916 GHz in communication systems especially for shipborne interrogator transponder and maritime radio-navigation services. Due to its small size, cost effectiveness and other characteristics, this antenna could be preferred in future applications.

Research Paper

Software Defined Radio Based Beacon Receiver

Vulavabeti Raghunath Reddy* , Ravindra Reddy K.**
*-** Department of Electronics and Communication Engineering, JNTUA College of Engineering, Pulivendula, Andhra Pradesh, India.
Reddy, V. R., and Reddy, R. K. (2019). Software Defined Radio Based Beacon Receiver. i-manager's Journal on Communication Engineering and Systems, 8(3), 13-21. https://doi.org/10.26634/jcs.8.3.16779

Abstract

The Software Defined Radio (SDR) is an advance type of radio communication system. This paper proposes development of a beacon receiver using software defined radio for processing Ka band satellite signals. GNU radio, a free software tool kit, will be used to develop the beacon receiver functionality. The beacon receiver would be used to detect and measure the signal strength of a transmitted beacon signal. The beacon signals are well suitable for propagation measurement due to stable transmitted power and frequency, and also measures the weather data and radio meter. The hardware components needed for this research are parabolic antenna, a low noise block converter, an ETTUS Universal Software Radio Peripheral (USRP) and Linux PC. This beacon receiver would have low cost compared to commercially available analog receivers. Low Noise Block Converter (LNB) is used to convert the incoming Ka band radio frequency signal to L band intermediate frequency. Ka band suffers attenuation due to rain. Beacon receiver is a high performance receiver and it is used to track the power density of the satellite beacon in real time applications. The signal processing blocks are written in C++ and Python to realize SDR.

Review Paper

Review on Navigation Assistance Devices for the Visually Challenged

Krithiga R.* , Prasanna S. C.**
*-** Department of Electronics and Instrumentation Engineering, SRM Valliammai Engineering College, Kattankulathur, Kanchipuram, Tamil Nadu, India.
Krithiga, R., and Prasanna, S. C. (2019). Review on Navigation Assistance Devices for the Visually Challenged. i-manager's Journal on Communication Engineering and Systems, 8(3), 22-27. https://doi.org/10.26634/jcs.8.3.16765

Abstract

With the rapidly growing technology, people have started finding ways to enhance their quality of life. This paper mainly focuses on the recent trends which are developed for assisting the visually impaired in navigation in both indoor and outdoor environments. This paper analyzed the working methodology, hardware, various algorithms and software tools employed by researchers across the globe to develop cost-effective prototype to assist in the navigation of the visually challenged persons. The devices that are used to help in the navigation of visually impaired people are called Electronic Travel Aid (ETA),and are discussed in detail in this paper.

Review Paper

A Comprehensive Study on Wireless Optical Space Communication Techniques

G. Karpagarajesh* , Helen Vedanayagi Anita R.**
*-** Department of Electronics and Communication Engineering, Government College of Engineering, Tirunelveli, Tamilnadu, India.
Karpagarajesh, G., and Anita, H. V. R. (2019). A Comprehensive Study on Wireless Optical Space Communication Techniques. i-manager's Journal on Communication Engineering and Systems, 8(3), 28-42. https://doi.org/10.26634/jcs.8.3.16997

Abstract

After the advent of telephone communication, the quest of mankind for wireless mobile communication through free space started evolving as a field of innovation. Free Space Optical (FSO) communication is a growing technology which propagates the light waves to transmit and receive the data wirelessly. This paper emphasizes the study of optical wireless communication through space for high speed data transmission, improving the quality factor, minimizing bit error rate (BRT), maximizing SNR, and the ways for preventing all type of losses occurred due to atmospheric turbulence. 5G communication is almost growing in all countries and the ways 5G network influences in today's market is higher. A detailed review on signal modulation and space turbulence models for good power efficiency and data security is also considered in this paper.