Abstract The IEEE and ICNIRP have set the maximum permissible exposure for an instantaneous peak electric field of 100 kV/m. However, no reason was given for this limitation. A new exposure system is designed through a detailed process of analytical analysis, numerical modeling and prototype testing. The system consists of a cylindrical re-entrant resonant cavity
Researchers have developed a new metasurface-based antenna, which represents an important step in making it convenient to collect energy from radio waves, such as those in cellular networks or Bluetooth connections. This technology could potentially offer wireless power to sensors, LEDs and other simple devices with low power requirements. “By eliminating cable connections and batteries,
The demand for flexible and inexpensive wireless communications and applications has sparked interest in innovation in wireless energy collection. For example, scientists were able to use organic material for a new semiconductor design for radio frequency circuits. Notably, organic semiconductors have applicability in 5G applications, according to international scientists led by King Abdullah University of
Organic semiconductors come to the 5G circuit Read More »
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GBT filed a non-provisional patent – AI-enabled long-range radio system Read More »
The idea of the Doherty amplifier is not new: this modified class-B radio frequency power amplifier (RF PA) configuration was designed by William H. Doherty of Bell Telephone Laboratories Inc. in 1936, in the early days of the high-power vacuum. tube amplifier (Fig. 1 and References 1 to 3). Since then, it has been used
Multistage Doherty MMIC Driver Eliminates the Need for Free Viewing Read More »
The energy harvest is showing a lot because new ways are being sought to generate electricity. One technology involves a common source: radio waves. Researchers at the University of South Florida are trying to extract energy from radio waves using synthetic materials called metamaterials, which exhibit properties not normally found in natural materials and are
Energy harvesting finds a new source: RF waves Read More »
Is SDR console free? SDR-Console V3 Beta now released: Console Server now available. SDR-Console V3 is the latest in the line of free SDR-Console software packages from developed Simon Brown. … SDR-Console and server currently support multiple SDR hardware including RTL-SDR. How do I connect to SDR? What is the best SDR software? 15 Best
Best Software Defined Radio Read More »
Illustration: Mark Montgomery The problem has bedeviled designers for decades: How do you squeeze more and more antennas into smaller and smaller mobile devices? It’s tempting to think that the answer is simply to use smaller antennas or to pack them closer together, but there are fundamental constraints on antenna size and placement. Antennas emit
Building Smartphone Antennas That Play Nice Together Read More »
What is software defined radio used for? This hardware includes mixers, filters, amplifiers, modulators, demodulators, etc. Therefore, SDR only uses an ADC and DAC to do the analog-to-digital and digital-to-analog signal conversion along with antennas without the need for many hardware components. Benefits of SDR A family of radio “products” that are designed to be
What is a software defined radio? Read More »
What you’ll learn: SMD antennas and FPC antennas have different implications for PCB design. Design tips for FPC antennas. This article explores the design and integration implications for flexible-printed-circuit (FPC) antennas. The FPC is an alternative to a chip antenna and can be an interesting choice for specific embedded designs. FPC antennas are thin, typically
Integration Tips for FPC Antennas Read More »
