A facility to generate high-intensity, ultra-short pulses of broad-band far-infrared radiation has been assembled and tested at Stanford.’ The device uses sub-picosecond relativistic electron bunches to generate coherent radiation through transition or synchrotron radiation in the far-infrared (FIR) regime between millimeter waves and wavelengths of about 100pm and less. Experimental results sh...

This article presents the analysis of ultra wide band (UWB) filter designed using a symmetrical three parallel coupled line resonator in low temperature co-fired ceramic (LTCC) medium. The ground plane with an aperture incorporated in it improves the coupling. Based on circuit models, the designed UWB filter has been analyzed, and the results have been confirmed by experiments. The filter has b...

Ultra-wideband (UWB) uses narrow band pulses of nano-seconds to provide high data rate communications .These narrow pulses spread the energy across a wide frequency band that is why it is called ultra-wideband. In this paper, we will discuss the UWB pulse modulation and multiple access modulation schemes using Pulse Position Modulation technique .The simulations are done in MATLAB software.

Radio-frequency (RF) ranging can be an important aid to an integrated navigation system, providing a key element to updating location information when GNSS systems are unavailable, blocked, or otherwise denied. The majority of the recent literature on RF ranging aids has focused on ultra wideband (UWB) ranging methods, due to the increase in ranging precision that comes with increasing RF bandw...

Optical communication systems, operating in C-band, are reaching their theoretically achievable capacity limits. An attractive and economically viable solution to satisfy the future data rate demands is employ transmission across full low-loss spectrum encompassing O, E, S, C L band of single mode fibers (SMF). Utilizing all five bands offers a bandwidth up $\sim$53.5THz (365nm) with loss below...