No abstract

No abstract

A printed quadruple band-notched ultra-wideband (UWB) antenna characteristic is presented. The designed UWB antenna has a size of 32 mm × 30 mm × 1.6 mm and covers an impedance bandwidth off 2.9–14.5 GHz for the entire frequency band. The entire frequency band maintains voltage standing wave ratio (VSWR) <2, except at WiMAX (3.1–3.6 GHz), WLAN (4.92–6.12 GHz), downlink of X-band for satellite communication systems (7.5–8.4 GHz), and X-band (10.2–11 GHz). By inserting a pair of L-shaped slots into the radiating element, a H-shaped resonator and rectangular split-ring resonators are closely arranged to the microstrip feed-line, alongside the measured impedance bandwidth of 129%. The fabricated antenna radiation pattern and return loss is presented.

No abstract

Remote Triggered Labs provides access to real experiments without time and location restrictions with necessary guidance required to perform experiments. Remote Triggered (RT) Labs have emerged as an alternative to real laboratories and have shifted the past pedagogy from student-centric to teaching-centric approach. Over the past decade several RT experiments have emerged in different parts of the world including those developed under Govt. of Indiaâ??s National Mission on Education through ICT as part of Right to Education (RTE) Program and various approaches have been implemented as to reinforce the use of Remote Labs in higher education. However, as the technology to build RT labs evolves there is a growing concern to adapt methodologies for developing scalable models of RT labs and introducing innovative ideas such as collaborative plans among universities within the RT labs framework. In this paper we propose a cloud based architecture for Remote Triggered Laboratory for Analog Communication. Cloud based models with their various characteristics e.g. - scalability, low cost and maintenance etc. provides several advantages to RT labs. Advanced web technologies are implemented to build up interface for teleoperation of high end instrumentation utilized in RT labs with interactive GUI design frameworks to deliver RT labs in a user friendly and more convenient environment.