RF Globalnet Downloads

Application Note: Large-Signal LDMOS Model Simulation Using Agilent Genesys Software

8/21/2008 1:53:00 PM

This article is the first in a series of notes and tutorials intended to guide the user through the stages of simulation-based power amplifier design using Modelithics non-linear transistor models as well as high accuracy passive component models along with Agilent Genesys software. This note covers the initial phase of installing the non-linear transistor model, simulating DC I-V curves, S-parameters and swept power data with different impedances presented to the active device.

Application Note: Lumped Element Low-Pass Filter Design And Optimization Using Agilent Genesys Software

8/21/2008 1:49:00 PM

This article covers the design and optimization of a 5th order lumped element low-pass filter using the Modelithics CLR library in concert with Agilent Genesys software. A demonstration circuit was fabricated and measured using a 16-mil thick Rogers 4003 substrate. The design process began with a conventional Chebyshev implementation in Genesys using ideal inductor and capacitor models. The simulation was then refined by the addition of Modelithics CLR models and careful modeling of the transmission line connections.

Product Brochure: R&S�ESL EMI Test Receiver

8/20/2008 9:28:00 AM

The R&S�ESL EMI test receiver combines two instruments in one, measuring EMC disturbances in accordance with the latest standards and also serving as a full-featured spectrum analyzer for diverse lab applications. The R&S�ESL is the ideal instrument for small budgets.

Datasheet: R&S�ESL EMI Test Receiver

8/20/2008 9:28:00 AM

TriAccess Technologies Delivers Complete Suite Of CATV RFIC Amplifiers For Emerging Networks

8/20/2008 12:17:00 AM

TriAccess Technologies, based in Santa Rosa, CA, designs and markets Radio Frequency Integrated Circuit (RFIC) amplifiers that enable cable television and telecommunications carriers to deliver the triple-play voice, data, and highquality video solutions demanded by business and residential subscribers. By AWR

White Paper: Millimeter-Wave Printed Circuit Board Developments - Improvements For Mechanical Packaging And Electrical Requirements

8/18/2008 3:17:00 PM

Millimeter applications place heightened and unique requirements on circuit board laminates used as transmission lines or as antennas. Historically, applications were low volume. Recent growth of millimeter applications, such as ACC (adaptive cruise control) and side lane changing sensors for standard, high volume, affordably priced vehicles, or commercial millimeter communication systems, has driven circuit board laminate fabricators to innovate materials. This article explores advancements in millimeter-wave circuit boards and the technical requirements placed on materials.

White Paper: Improvements In Microwave Laminates For Amplifier Reliability And Efficiency

8/18/2008 3:00:00 PM

Trends in the electronic industry continue to drive materials to satisfy higher power and higher thermal stability requirements. Many techniques have been developed to improve heat rejection in electronics, including engineered heat sinks, thermal interface materials, and whole subsystems (cooling fans and heat pipes). This pursuit has extended to RF and microwave circuit board substrate materials.

White Paper: Electromagnetic Simulation Aids Development Of Unique EEG Cap

8/18/2008 2:14:00 PM

Researchers at the Athinoula A. Martinos Center for Biomedical Imaging at Massachusetts General Hospital (MGH), Charlestown, Massachusetts, are developing a special electroencephalography (EEG) cap for use with a research technique that integrates EEG with magnetic resonance imaging (MRI). This integrated technique offers the potential to improve investigations of brain activity

Datasheet: Wi-Fi 2.4 GHz 8 section channel Bandpass filter

8/15/2008 10:32:00 AM

Anatech Electronics manufactures custom and standard RF & Microwave filters for Antennas subsystems. These include Filters and Duplexers for GSM, CDMA, GPS, WIFI, WiMax and all other subsystems built upto 20 GHz.

Datasheet: Wi-Fi Duplexer

8/15/2008 10:32:00 AM

Datasheet: Wi-Fi 5825: 5.8 GHz Bandpass filter

8/15/2008 10:32:00 AM

Datasheet: CB4012 PCS/UMTS Cavity Bandpass Filters

8/15/2008 10:12:00 AM

Anatech Electronics designs, manufactures and supplies standard and custom RF & Microwave filters and Duplexers for Wireless Communication. Ceramic bandpass filters and Duplexers are built for various wireless systems like GSM, PCS, CDMA, INMARSAT DCS, PCS Communication, UMTS, TCAS, DAB, AMPS, EGSM, CATV, WIFI and WiMax These filters provide low loss, sharp rejection and temperature stability in a very small size. They are typically used in handheld sets and surface mount applications.

Datasheet: CB4098 GSM/Cellular Cavity Bandpass Filters

8/15/2008 10:12:00 AM

Datasheet: CB4112 GSM/Cellular Cavity Bandpass Filters

8/15/2008 10:12:00 AM

Datasheet: Filter In Connector Series (FC)

8/13/2008 1:23:00 PM

K&L Microwave's Filter in Connector Series (FC) is compact, easily installed, and can provide the solution to frequency interference problems. These lumped element filters are available in three to five resonant sections with mechanical lengths of 1.312" or 1.536".

Article: A Dash Of Maxwell's -- Chapter III -- The Difference A Del Makes

8/13/2008 9:01:00 AM

As part of our ongoing Technology 101 coverage, RF Globalnet is presenting the historic six-part article series on Maxwell's equations by Dr. Glen Dash. Written specifically for the Web, these articles are intended to serve as a primer on electromagnetic field theory. This third article covers using a differential form as opposed to an integral form when looking at Maxwell's equations. Additional installments will be featured in upcoming editions of RF Globalnet newsletter.

White Paper: Antenna Performance Basics

8/13/2008 8:38:00 AM

The antenna is an important component of a wireless network. The proper antenna can optimize the range and reliability of a radio network while the wrong antenna causes high-performance wireless devices to appear to stop operating. This article provides a basic knowledge of key performance characteristics used to analyze antenna performance within installation environments.

Advanced Antenna Engineering And Product Guidebook

8/11/2008 3:57:59 PM

Sensor and Antenna Systems, Lansdale, PA (SAS Lansdale, a Cobham Company) announces the issue of its Advanced Antenna Engineering and Product Guidebook, covering antennas from 20 MHz to 100 GHz

Datasheet: Model 11C23300 Blade Antenna

8/11/2008 3:42:00 PM

Cobham Defense Electronic Systems - Nurad Division recently introduced Model 11C23300, a high performance, robust blade antenna qualified for supersonic flight. This L-Band (960 to 1220 MHz) antenna features omni-directional azimuth coverage, gain of a quarter wave monopole (3dB peak), vertical polarization, and low VSWR.

Guest Column: Get To Know Crest Factor And Its Influence On The Design Of OFDM-Based Systems

8/11/2008 2:07:00 PM

The exceptional performance of wireless communications systems and most recently television broadcasting is delivered in large measure by digital transmission technology and more specifically by higher-order modulation schemes such as Orthogonal Frequency Division Multiplexing (OFDM). To understand the importance of crest factor in designing a system using OFDM, it helps to review its fundamental concepts and statistical background, as well as practical considerations to remember when creating a system design.