Feature Articles

  1. Li-Fi System 100 Times Faster Than Wi-Fi

    A new type of Li-Fi (Light Fidelity) optical wireless system being developed by students at Eindhoven University of Technology (TU/e) Institute for Photonic Integration is up to 100 times faster than the best Wi-Fi connections available.

  2. Why Multi-Band Smartphones Can Do Away With Antennas

    Current and future smartphones that combine spectrum from several frequency bands can function without a typical antenna, thanks to a tiny "booster" device that can radiate RF signals from the smartphone itself.

  3. Cornell Engineers Build Two-Way Software-Defined Radio On A Single Chip

    Researchers at the School of Electrical and Computer Engineering at Cornell University have built a software-defined radio (SDR) transceiver that is capable of transmitting and receiving a radio signal on a single chip, which presents a new way to build wireless communication circuits.

  4. KAUST Develops 5G Signal Optimization Algorithm

    Researchers at Saudi Arabia's King Abdullah University of Science and Technology (KAUST) have developed an efficient wireless signal optimization algorithm that will help realize the full implementation of massive MIMO (multiple input, multiple output) antenna technology for 5th generation (5G) roll-outs.

  5. Understanding The Limitations Of Modern Military Radio Testbeds

    Use of military radios has increased dramatically, as has the need to test those radios. In part, this increase stems from the advent of military-based communication applications like the land mobile radio system and tactical networks. 

  6. Researchers Apply Mathematics’ Matching Theory To Spectrum Crunch

    Researchers at King Abdullah University of Science and Technology (KAUST) have proposed an algorithm that pairs cognitive radio network users anonymously to share valuable wireless spectrum bandwidth.

  7. Disney Researchers Devise Room-Scale Wireless Power Charging Method

    Scientists at Disney Research have demonstrated a new method of charging devices wirelessly across a room bathed in magnetic fields emanating from metalized walls, floor, and ceiling. This new technique makes it possible for any living room, office, or warehouse to deliver safe and ubiquitous wireless power to devices contained anywhere within.

  8. Blazing Fast Terahertz Transmission Exceeds 100 Gigabits Per Second At 300 GHz

    Japanese scientists have built a terahertz (THz) transmitter capable of transferring data at speeds of 105 gigabits per second using the frequency range between 290 GHz and 315 GHz. That's ten times faster than fifth-generation mobile networks (5G) offer.

  9. RF Architecture Choices For Next-Generation Handset Designs

    Today’s smartphone market has expanded into several categories with differing design goals and priorities, which require different approaches to RF front end (RFFE) integration. Modern packaging techniques make it possible to combine multiple RFFE components into integrated modules which help smartphone manufacturers accelerate the design and manufacture of new handsets. However, since there are two key smartphone categories – flagship phones and mid-tier and entry-level handsets – it raises the question of what would be the right level of RFFE integration and the best integration approach for each one?

  10. Addressing Carrier Aggregation Challenges Using Multiplexer Solutions

    How do operators avoid interference between bands while minimizing insertion loss? Multiplexers. They are designed to integrate the required filters for multiple aggregate bands, provide isolation within and between the bands, and allow them to simultaneously connect to the antenna.