advertisment Advertisement
advertisment Advertisement
advertisment Advertisement
advertisment Advertisement

Industry News

Shaped Sector Antennas for LMDS and MMDS Hubs

A new line of hub sector antennas for the 24 to 42 GHz local multipoint distribution system (LMDS) and 2.1 to 2.7 GHz multichannel multipoint distribution system (MMDS) wireless access frequency bands
Shaped Sector Antennas for LMDS and MMDS Hubs REMEC Magnum Inc. San Jose, CA A line of hub sector antennas for the 24 to 42 GHz local multipoint distribution system (LMDS) and 2.1 to 2.7 GHz multichannel multipoint distribution system (MMDS) wireless access frequency bands has been recently introduced....
Read More

BENEFITS OF AUTOMATED RIBBON BONDING FOR MICROWAVE APPLICATIONS

Ribbon wire vs. round wire bonding as the high frequency package interconnect of choice
TECHNICAL FEATURE BENEFITS OF AUTOMATED RIBBON BONDING FOR MICROWAVE APPLICATIONS BRADLEY K. BENTON Palomar Technologies Inc. Vista, CA With today's ever-increasing need for larger bandwidth in telecommunications, datacom, aerospace and defense applications, packaging challenges continue to grow. As the frequency at which the packages are required to operate increases,...
Read More

AN ANALYSIS OF ENCLOSED COPLANAR STRIPS

Simple closed-form equations for characteristic impedance and effective dielectric constant for conductor-backed coplanar strips as well as the effect of a top ground cover
TECHNICAL FEATURE AN ANALYSIS OF ENCLOSED COPLANAR STRIPS Abstract: With the increasing use of high speed digital circuits in modern electronic devices, coplanar stripline (CPS) transmission lines are of major importance as interconnecting lines. For example, the high speed digital circuits used in differential receivers operate best when fed...
Read More

DC, LINEAR AC AND NONLINEAR AC STABILITY ANALYSIS USING BIFURCATION AND NYQUIST THEORY

Stabilty analysis using Nyquist and bifurcation criteria, which avoid the limitations of traditionally used stability parameters and enable designers to achieve better performance from their circuits
TECHNICAL FEATURE DC, LINEAR AC AND NONLINEAR AC STABILITY ANALYSIS USING BIFURCATION AND NYQUIST THEORY JAKE GOLDSTEIN AND MEHDI SOLTAN Xpedion Design Systems Inc. Santa Clara, CA Designing power and low noise amplifiers, gain blocks, multipliers and oscillators for modern communication systems requires delicate trade-offs between various design specifications...
Read More

MODULATION IMPERFECTIONS IN IS54/136 DUAL-MODE CELLULAR RADIO

Typical modulation errors related to the RF and digital sections of a dual-mode (TDMA/AMPS) cellular phone front end, and development of calibration methods to effectively minimize internal modulator errors through analysis of the output signal
TECHNICAL FEATURE MODULATION IMPERFECTIONS IN IS54/136 DUAL-MODE CELLULAR RADIO Abstract: Nonideal in-phase and quadrature (IQ) calibration circuits on one hand, and the synthesizer's phase noise spurious response and carrier leakage on the other, affect modulation quality by degrading modulation parameters such as error vector magnitude (EVM), spectral mask and...
Read More

DC and Pulsed IV Chracteristics of GaAs MESFET Devices

A variety of IV measurements performed inder DC and pulsed conditions that illustrate the strong influence of frequency dispersion and self-heating effects on device characteristics
DC and Pulsed IV Characteristics of GaAs MESFET Devices New measurement procedures using a DC and pulsed IV characterization system illustrate the significant effect that the thermal and frequency dispersion phenomena in GaAs MESFETs have on the IV characteristics of the device. The new procedures presented enable the effects...
Read More

Duplexer Considerations for X-Band T/R Modules

The capabilities of the three most common duplexer configurations as well as supporting component design considerations
Duplexer Considerations for X-band T/R Modules A transmit/receive (T/R) module’s duplexer plays a critical role in determining a phased array’s reliability, radar cross section (RCS) and performance. Several different block diagrams are typically used to realize the duplexer, but many common configurations do not satisfy basic duplexer requirements. This...
Read More

Around the Circuit

Around the Circuit INDUSTRY NEWS Advanced technology product and service provider TRW Inc. and first-mile broadband engine supplier for e-business gateways Endgate Corp. have signed a definitive agreement to merge Endgate and TRW Milliwave Inc. , a wholly owned TRW subsidiary, to create Endwave Corp. The new company will...
Read More

New Literature

New Literature Systems Approach Catalog This 20-page catalog describes a systems approach to wireless RF transmission lines, overviewing electrical, mechanical, system and supplier performance; transmission line cable; water migration; connectors; electrical performance; installation issues; RF systems; quality; and options. Product photographs are included. Andrew Corp., Orland Park, IL (800)...
Read More

Components

Components Nonreflective/Absorptive Switch This variable rise time, high power (1 W), high isolation nonreflective/absorptive SPST switch operates from 500 MHz to 18 GHz (other frequencies are available) with the capability of adjusting the rise time in four discrete steps of 25, 50, 75 and 100 ns. Insertion loss is...
Read More

Sign-In

Forgot your password?

No Account? Sign Up!

Get access to premium content and e-newsletters by registering on the web site.  You can also subscribe to Microwave Journal magazine.

Sign-Up

advertisment Advertisement