Understanding Mixers and Their Parameters - Microwaves & RF
WEBJul 8, 2015 · Understanding Mixers and Their Parameters. Mixers remain an important part of most RF/microwave systems, prompting the need to understand this vital component and its parameters. Download this article in .PDF format. A mixer is a three-port component, which performs the task of frequency conversion. Mixers translate the frequency of …
The Importance of RF Filters in Advanced Wireless Systems
WEBSep 15, 2021 · RF filters are among the key core technologies to address next-generation systems that need high RF performance, such as autonomous vehicles, telemedicine, smart facilities, and other highly connected apps. One of the companies operating in the space, Resonant, recently released a new RF filter, designed with the company's proprietary XBAR ...
Army Seeks Secure MPU5 Radio Connections - Microwaves & RF
WEBFeb 12, 2020 · The U.S. Army is looking to Persistent Systems, LLC for the development of manned-unmanned (MUM) radio communications systems for the future. Secure communications systems will be needed for connecting human soldiers with robotic and autonomous systems in the field, and the U.S. Army Combat Capabilities Development Command C5ISR Center is awarding a $5.4 million contract to Persistent Systems ...
AESA Radar Technology Advances Weather Predictions
WEBJan. 24, 2018. Military-grade AESA radars are increasingly being used for weather detection and prediction, providing new levels of scanning speed and accuracy for finding major events, such as tornadoes and thunderstorms. Jack Browne. Radar systems have long aided meteorologists in forecasting weather patterns about to strike.
Where Are They Now? - Microwaves & RF
WEBDec 5, 2011 · LNR Communications is now part of L3-Narda in Hauppauge, NY. Logimetrics (a supplier of laboratory-grade traveling-wave-tube amplifiers) was absorbed into Instruments For Industry (IFI). IFI has confirmed that several of the Logimetrics guys are there and they can evaluate and/or repair Logimetrics amps.
BAE Works with AFRL to Advance GaN Technology - Microwaves …
WEBSep 19, 2018 · BAE Systems has signed a cooperative agreement with the U.S. Air Force Research Laboratory (AFRL) for Phase 1 of a technical program to transition gallium nitride (GaN) semiconductor technology developed by the Air Force to BAE’s Advanced Microwave Products (AMP) Center. As part of this transition, BAE will …
Introduction to RF & Wireless Communications Systems
WEBOct 13, 2017 · RF itself has become synonymous with wireless and high-frequency signals, describing anything from AM radio between 535 kHz and 1605 kHz to computer local area networks (LANs) at 2.4 GHz. However, RF has traditionally defined frequencies from a few kHz to roughly 1 GHz. If one considers microwave frequencies as RF, this range extends to …
Learn About Circulators and Isolators | Microwaves & RF
WEBAug 20, 2016 · Circulators and isolators are three-port passive electronic devices that help direct the flow of microwave signals in RF equipment and systems. A port is defined as a connection point for either an input signal, output signal, or termination. Figure 1a shows the standard schematic symbol for a circulator. The arrow indicates the unidirectional ...
A Brief Tutorial on Microstrip Antennas (Part 1)
WEBNov 6, 2018 · In a properly designed microstrip antenna, the radiation intensity is in a direction normal to the radiating element (i.e., broadside). For the rectangular microstrip antenna, the length, L, is typically one-third to one-half wavelength long, depending on the substrate relative dielectric constant, which is commonly 2.0 to 10.0.The lower values of dielectric constant yield higher efficiency.
Microwave Diodes… Why a Schottky-barrier? Why a Point-contact?
WEBDec 9, 2013 · March, 1968. Since World War II, the point-contact diode has been the most useful converter of microwave signals to lower frequencies. Now, a new device—the Schottky-barrier diode—is claimed to offer improved electrical efficiency and higher reliability for this and other applications. A comprehensive evaluation of …