February 7, 2007
HeliosTM Power Transceiver at the Heart of Award-Winning Model; Company Now Supporting Both CDMA and GPRS Handsets Read More
January 11, 2007
New test platform supports the entire development lifecycle of A-GPS devices-from initial R&D through conformance testRead More
January 10, 2007
A replacement product for PTFE woven glass circuit material has been introduced that provides superior mechanical and thermal properties, uses the RO4000 ® resin system for ease of fabrication and is a cost competitive option for base station antenna applications (see Figure 1 ). The RO4230™ high frequency laminate...Read More
December 13, 2006
Aeroflex has announced it has added the ability to undertake live receiver testing and transmitter testing, including HSDPA on its highly successful 6413A UMTS basestation test system.Read More
October 16, 2006
Metal-clad Fibers with Significant Weight Savings and EMI Performance
Micro-Coax, Pottstown, PA
Micro-Coax is now offering the ARACON“ family of metal-clad fibers that combines the conductivity of metal with the strength, light weight and flexibility of Kevlar® aramid fibers. The ARACON fibers are a superior lightweight alternative to traditional nickel-plated copper wire for EMI shielding. Replacing standard wire with ARACON offers significant weight savings without sacrificing EMI performance, as well as other benefits that copper and alloy wires cannot match.
August 3, 2006
The advantageous physical properties and manufacturing characteristics of Osprey Controlled Expansion (CE) alloys are currently being exploited in a variety of electronic applications. The ability to tailor the coefficient of thermal expansion (CTE) values of these alloys to ceramic circuit boards and components operating at high frequencies, combined with...Read More
June 20, 2006
Ideal for Devices Used in WiMAX, Military and Space Applications; Hermetic Surface Mount Package Allows Products to Operate at Higher FrequenciesRead More
For quality control in the design of microwave and millimeter-wave circuitry and devices, it is important to have a good measure of the dielectric properties of the materials employed. The standards and methods that are often employed for this purpose ...
December 1, 2003
The setups presented are essentially of two types - thin dielectric sheet testers and z-axis testers. These are the tools that are employed to independently measure the components of the substrate dielectric constant. It is supposed that suitable propagation models may use this information to better predict propagation mode...Read More
By using in conjuction both frequency and time domain reflection measurements, it is possible to positively identify the specific circuit discontinuities that contribute to a given VSWR lobe. Corrective action can then be readily determined for optimum...
November 1, 2003
Improving VSWR is typically an iterative trial-and-error exercise when utilizing either frequency or time domain information. For example, while circuit modifications which decrease time domain reflectometry (TDR) "bumps" (discontinuities) are generally a good thing, decreasing a specific TDR bump does not necessarily improve VSWR within a frequency band of...Read More
September 1, 2003
X2Y® technology is a new balanced component capable of high frequency performance across a broad frequency range. The component uses a standard ceramic capacitor with subtle, but important modifications to its structure. These structural changes create a circuit inside the capacitor that is capable of broadband electromagnetic interference (EMI)...Read More