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


Volume 5 Issue 2 February - April 2016

Article

Advancement Towards Communication: Optical Fiber Technology

Prachi Agrawal* , Sharad Mohan Shrivastava**
* PG Scholar, Department of Communication Engineering, Chhattisgarh Swami Vivekanand Technical University, Bhilai CG, India.
** Assistant Professor, Department of Electronics & Telecommunication, Shri Shankarachrya Technical Campus, Bhilai CG, India.
Agrawal, P., and Srivastava, S. M. (2016). Advancement Towards Communication: Optical Fiber Technology. i-manager’s Journal on Communication Engineering and Systems, 5(2), 1-9. https://doi.org/10.26634/jcs.5.2.5959

Abstract

In this work, the authors have reviewed the basic concepts of optical fiber network. They describe its key feature and its rapid advancement in the telecommunication industry. The advantages of optical fiber technology in comparison to the conventional data transmission systems and also the basic operating characteristics of fiber optic system is discussed. The work focus on describing the non-linear effects found in fiber communication network, which is the major limitation to the system performance. The objective of this paper is to make readers understand the key terms related to optical fiber technology, specifically different types of non-linearities found in optical fiber to help them carry out their future project works.

Research Paper

Design and Simulation of Slotted Dual Band Microstrip Antenna for WLAN Applications

Shweta Gupta* , Sudhanshu Verma**, G.S. Tripathi***
** Assistant Professor, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
*** HOD, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
Gupta, S., Verma, S., and Tripathi, G.S. (2016). Design and Simulation of Slotted Dual Band Microstrip Antenna for WLAN Applications. i-manager’s Journal on Communication Engineering and Systems, 5(2), 10-14. https://doi.org/10.26634/jcs.5.2.5960

Abstract

This paper presents the design and simulation of a slotted microstrip antenna which supports dual band operation. The proposed antenna covers upper WLAN [5.2 GHz (5.15-5.35 GHz) and 5.8 GHz (5.724-5.825 GHz)] bands. The substrate used is FR4 having a thickness of 1.6 mm and dielectric constant of 4.4 with a loss tangent of 0.02 is used. The designed antenna is compact in size having the size of the substrate as 40X50 mm. It is having two central frequencies at 5.194 GHz (5.11- 5.29 GHz) and 5.778 GHz (5.66- 5.8825 GHz) which achieves a bandwidth of 180 MHz and 222.5 MHz. It gives an improved return loss of -22.6852 dB and -16.697dB at 5.194 GHz and 5.778 GHz respectively. The designed antenna shows the directional radiation pattern at both the frequencies with acceptable front to back ratio and VSWR at these frequencies below 1.5.

Research Paper

Design and Performance Evaluation of PIFA with Parasitic Elements for Mobile and UWB Applications

Priyanka Singh* , Rajan Mishra**
* PG Scholar, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
** Assistant Professor, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
Singh, P., and Mishra, R. (2016). Design and Performance Evaluation of PIFA with Parasitic Elements for Mobile and UWB Applications. i-manager’s Journal on Communication Engineering and Systems, 5(2), 15-19. https://doi.org/10.26634/jcs.5.2.5961

Abstract

The objective of this paper is to design and perform analysis of PIFA in order to obtain the required performance characteristics for mobile and UWB applications. Simulation and analysis were carried out by high frequency structure simulator, HFSS. The proposed antenna covers a wide frequency range from 0.67 GHz to 11GHz. It operates at LTE700 MHz, GSM (800-900 MHz), GPS (1.22 and 1.57 GHz), DCS (1.8 GHz), PCS (1.9 GHz), Wi-Fi and Bluetooth (2.4-2.5 GHz), 5 GHz WLAN and the major part of UWB frequency range The proposed antenna consists of a rectangular patch, rectangular parasitic element, inverted-L Shaped parasitic element, slots in ground plane which produces low frequency resonance and thick feeding terminal. The antenna design parameters are varied to study its effect on performance of the proposed antenna. The proposed antenna has a flat and simple structure, which can be easily implemented.

Research Paper

A Modified Rectangular Ring Wideband Monopole Antenna for WLAN / WiMAX Applications

Poonam Chaurasiya* , R. K. Chauhan**
*PG Scholar, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
**Professor, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
Chaurasiya, KM. P., and Chauhan, R.K. (2016). A Modified Rectangular Ring Wideband Monopole Antenna for WLAN / WiMAX Applications. i-manager’s Journal on Communication Engineering and Systems, 5(2), 20-24. https://doi.org/10.26634/jcs.5.2.5962

Abstract

In this paper, a novel rectangular ring monopole antenna for Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMAX) is demonstrated. The antenna is designed with a rectangle shaped ring having four different strips. The four strips along with the rectangular ring are used to create a wide impedance bandwidth (2.3-7 GHz) for VSWR ≤ 2, which covers the WLAN frequency ranges (2.4 - 2.483 GHz, 5.15 - 5.35 GHz and 5.725 - 5.825 GHz) and WiMAX band (2.5 - 2.69 GHz, 3.30 - 3.80 GHz and 5.25 - 5.85 GHz) applications. The antenna shows a sufficient wide bandwidth (4700 MHz) with good radiation patterns. The proposed antenna is suitable for WLAN/WiMax standards

Research Paper

A Compact Triple Band Monopole Antenna With U-Shaped Slots For Wireless Applications

Garima Jaiswal*
PG Scholar, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
Jaiswal. G. (2016). A Compact Triple Band Monopole Antenna With U-Shaped Slots For Wireless Applications. i-manager’s Journal on Communication Engineering and Systems, 5(2), 25-29. https://doi.org/10.26634/jcs.5.2.5963

Abstract

A compact size triple band microstrip patch antenna for WCDMA and Bluetooth, Worldwide Interoperability for Microwave Access (WiMAX) and Wireless Local Area Network (WLAN) has been proposed. This antenna is applicable for all wireless application such as Bluetooth, WiFi, WLAN and WiMAX. It is very compact to other existing antennas. This proposed antenna consists of patch with U-shaped Slots, symmetric stair type structure microstrip feed and finite ground plane. It operates over the frequency ranges, 1.9-2.6 GHz, 3.3-3.9 GHz and 4.4-7.1 GHz and suitable for WCDMA and Bluetooth (1.9-2.6 GHz), WiMAX (2.5 / 3.5 / 5.5 GHz), WLAN (2.4 / 5.2 / 5.8 GHz) and WiFi (5 GHz) and also provides band rejection between that frequency bands. The proposed antenna is compact (15x15x1.6 mm3 ) with good return loss and wider bandwidth.

Research Paper

Compact Dual Port Triple Band MIMO Planar Inverted-F Antenna for Wireless Applications

Rajneesh Talwar* , R. K. Chauhan**
* PG Scholar, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
** Professor, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
Rajnish and Chauhan, R.K. (2016). Compact Dual Port Triple Band MIMO Planar Inverted-F Antenna for Wireless Applications. i-manager’s Journal on Communication Engineering and Systems, 5(2), 30-35. https://doi.org/10.26634/jcs.5.2.5964

Abstract

A compact dual band low profile MIMO PIFA antenna for mobile handset GSM (800 MHz - 1100 MHz), Bluetooth (2.4 - 2.48 GHz), WLAN (3.1 GHz - 3.45 GHz), WiMAX (2.5 GHz - 2.69 GHz) applications is presented in this paper. The size of the proposed antenna design is 16 x 33 x 4 mm on a 100 x 45 mm ground plane. Two feeding ports are arranged perpendicular to each other such that, the polarization diversity is exploited because of the reason that the two ports are cross polarized. A slot of size 20 x 37 mm is cut on the bottom plane for optimized isolation of two ports. Introducing slit in the PIFA diverging part and its ground plane results in making quad resonance frequencies and growing the bandwidth, correspondingly. The antenna simply uses an inexpensive substrate FR-4 of 1.6 mm height and dielectric constant of 4.4. Details of a compact, low profile dual band PIFA antenna with slotted ground and patch and height of 4 mm are presented and studied in this paper.