In the age of information technology, mobile data communication has become essential due to its convenience. A major role of mobile communication networks is to provide ubiquitous broadband services. Regardless of the actual position of the antenna on earth, it…...
You must be a IDST Monthly Access member to access this content.
DARPA has long recognized the critical role transistors play in Department of Defense (DoD) systems – especially radio frequency (RF) systems ranging from radar and communications to signals intelligence and electronic warfare. In the 1990s, the DARPA MIMIC program advanced…...
You must be a IDST Monthly Access member to access this content.
In a complex world with unpredictable and constantly changing threats, having better information is the key to staying ahead and mitigating the threats. Security concerns across the global landscape reinforce the need for continuous awareness of one’s environment. A capability…...
You must be a IDST Monthly Access member to access this content.
Terahertz (THz, 1012 Hz) technology is based on light sources with frequencies much lower than of visible light, and slightly higher than of microwaves. Such light sources have a number of unique capabilities, for example that it can propagate through…...
You must be a IDST Monthly Access member to access this content.
In recent years, nanomaterials have displayed potential in effective detection and removal of greenhouse gases, chemical contaminants, organic pollutants, and biological agents. These materials come in various morphologies and have various functions (e.g., adsorbents, catalysts, or membranes). The high reactivity…...
You must be a IDST Monthly Access member to access this content.
Criminals, terrorists and military have been using tunnels since long time to evade detection as surface based detection methods are ineffective underground . Indian Border Security Force (BSF) troopers in Nov 2020 discovered an underground tunnel on the international…...
You must be a IDST Monthly Access member to access this content.
Gamma rays are ionizing electromagnetic radiation, obtained by the decay of an atomic nucleus. Gamma rays are given off by stars, and by some radioactive substances. Gamma-rays travel to us across vast distances of the universe, only to be absorbed by…...
You must be a IDST Monthly Access member to access this content.
The complexity of current 4G/5G phones comes from the need to cover multiple bands. Modern modems like the ones used in mobile phones are compatible with multiple transmission bands, including 3G, 4G LTE, Wi-Fi, and Bluetooth. The radio frequency front-end…...
You must be a IDST Monthly Access member to access this content.
The RF design consists of passive as well as active components. The inductors, capacitors, and resistors are one of the three passive elements that are the foundations of all electronics. The discrete and passive components are an integral part of…...
You must be a IDST Monthly Access member to access this content.
One of the most common functions in all electronic circuitry is switching. Switching has a wide range of uses. Engineers in industries ranging from telecommunications to military/aerospace need high-performance RF/microwave switching as part of their test setups. An RF switch…...
You must be a IDST Monthly Access member to access this content.