Jayeshkumar Chelabhai Prajapati

• Doctor of Engineering
• Professor (Assistant) at Government Engineering College, Patan

Free Space Optics (FSO) has received much attention in recent years as a cost – effective, licence free and wide-bandwidth access technique for high data rates applications. Single beam FSO and multiple beam FSO system is designed and analyzed to produce the best system capable of tackling the effect of atmospheric weather conditions. Hybrid wavele...

Radio over fiber is upcoming and maturing technology in terms of security, reliability, and coverage for long-distance optical-wireless communication systems. The nonlinear behavior and dispersive nature of optical channels are performance restrictive factors limiting the long reach in such systems. Along with enhancing channel capacity and bandwid...

In the era of 5g technology, it is needed to improve speed of the circuitry used in analog and digital hardware. Digital to analog conversion is an essential process, DAC is a vital circuitry utilized for the same in the electronic systems. Our proposed current-steering DAC (CS-DAC) offers suitability for both high speed and high-resolution require...

We propose an advanced optical transport system utilizing higher order modulation formats and coherent detection. Our innovation introduces an 8 x 112 Gbps WDM ROF link using a 32 QAM-OFDM modulation scheme, capable for extending its reach. Our proposed research stands out from existing studies due to its distinctive use of the 32-QAM format and a...

Analysis of Floating Gate MOSFETs (FGMOS) is carried out. Circuits like simple current mirror and FGMOS based current mirror are discussed. FGMOS based current mirrors can be operated at lower voltage levels. FGMOS based cascode current mirror circuit is also simulated. Parameters like current range, voltage requirements, Bandwidth and region of op...

Radio over Fiber is the basically advanced and recent technology which combines the optical network ability with the wireless network mobility to support the upcoming broadband multimedia applications. Radio over Fiber (ROF) access facilitates high-capability multimedia services in a real-time basis. It provides better coverage, high reliability, c...

Radio over fiber technology is increasing increasingly now days for wireless communication area in order to support the growing need of data traffic volume. In such systems fiber is used as an ideal medium to transmit modulated optical signals by microwave signals to the remote sites of network. Due to offered distinguished low loss and high wi...

In today’s time due to the spread of smart phones, tablets, various machine-to-machine (M2M) communication-based applications and the rapid arrival of the internet of things (IoT)-based applications have raised request of huge bandwidth. Services for applications like transfer of various types of images, high-quality video streaming, and upcoming c...

In this paper, DR (Dielectric Resonator) loading technique is implemented in a narrowband microstrip patch antenna for increasing impedance BW (bandwidth) and rad. (radiation) efficiency without much affecting its performance. The original patch antenna has 2.2% impedance bandwidth and 92.7% radiation efficiency. The BW enhancement is achieved with...