The Editors of Microwaves and RF

Articles by The Editors of Microwaves and RF
DARPA GaN Contracts Go Head To Head
This work in Near Junction Thermal Transport (NJTT) is expected to set the stage for substantial MMIC performance enhancements including reduced size, weight, and power consumption.
Stable Oscillator Tunes 805 To 868 MHz
A low-noise oscillator provides stable performance for television broadcast applications from 805 to 868 MHz.
Control Lights From Afar
As the demand for remote control of lighting rises, shipments of RF-embedded light bulbs and their associated remote controllers will climb.
Synthesizer Consumes 400 μW To Support ISM
In this paper, several design techniques are presented that may overcome the challenges in the design of 0.5-V, ultra-low-power frequency synthesizers for implantable medical devices.
Power Amplifier Drives 2.9 To 3.1 GHz
This solid-state amplifier uses GaN device technology for 300 to 400 W output power from 2.9 to 3.1 GHz.
Signal Generators Switch To 20 GHz
Model 845 is a compact signal generator capable of fast switching speed and low phase noise from 10 MHz to beyond 20 GHz.
Couplers Channel High Power To 4 GHz
A directional coupler designed for high input power can handle peak levels to 8 kW from 2 to 4 GHz.
MM-Wave Receiver Precisely Detects AOA
A millimeter-wave IC angle of arrival detector and six-port radar receiver front end has been developed and characterized on wafer, covering 75 to 100 GHz with a 3-dB bandwidth of at least 9 GHz.
X-Band Antenna Arrays Enrich RHCP
To minimize radiation loss for long-distance communication, SIW-based antenna arrays have been employed while sequential feeding is adopted to enhance RHCP characteristics.
Video Travels Easily Between Devices 1
Smartphones have become essential tools to many consumers—acting as a phone, camera, e-mail provider, schedule-keeper, and social-media enabler, among other things. Given that consumers are increasingly using their smartphones to take photos and videos, it is only natural that they should be enabled to easily share them with an audience via a bigger screen.
Missile Defense Succeeds From Sea
Missile defense systems must identify and respond to incoming threats in a short amount of time. Although they have reached great heights, US missile-defense efforts have thus far been contained to land. Recently, however, a US Army and Navy test demonstrated that Raytheon Co.’s Joint Land Attack/Cruise Missile Defense Elevated Netted Sensors (JLENS) can integrate with the defensive systems currently in the Navy’s inventory.
Time-Interleaved ADC Benefits 60-GHz Transceiver
A number of standards have sprung up in the 57-to-64-GHz band, such as IEEE 802.15.3c, IEEE 802.11ad, and WirelessHD. No matter the standard, they all have one common goal: to speed the realization of integrated circuits (ICs) that can support large wireless data transfers at those millimeter-wave frequencies.
Methodology Optimizes Design Of Scalp-Implantable Antennas 1
In the area of implanted medical devices, antenna-enabled biotelemetry is gaining attention for its potential to overcome the limitations of inductive biotelemetry. Such issues include low data rate, restricted communication range, and sensitivity to inter-coil misalignment.
GaAs Chips Help VSAT Systems 5
A family of Ka-band GaAs chipsets has been developed by TriQuint Semiconductor for use in very-small-aperture-terminal (VSAT) satellite communications systems. The family includes a variable-gain amplifier, a 1-W power amplifier (PA), a subharmonic frequency upconverter, and a block frequency downconverter.
Portable Tester Scans To 1 GHz
The 3550 digital radio test system enables radio testing from 2 MHz to 1 GHz and is ideal for field testing of analog and digital systems.
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