Microwaves & RF UPDATE
MWRF - www.mwrf.com
March 23, 2006

Greetings and welcome to your personal copy of PlanetEE's Microwaves
and RF UPDATE e-newsletter. Please see below for address-change or
subscribe/unsubscribe instructions.

Today's Table of Contents:
1. Achieving Affordable WiMAX Components
2. Dual-Channel Power Detector Reaches 11 GHz
3. Group4 Labs Develops GaN On Diamond
4. Seminars Highlight Software Design Tools
5. TestMart and VXI Technology Sign GSA Agreement
6. AVX Adds High-Current RoHS-Compliant Caps
7. Powerwave Connects Chicago Transit Authority
8. Happenings - Conferences

************************ ADVERTISEMENT ****************************

        FREE: Agilent RF & Microwave Test Accessories Catalog

Quickly and conveniently identify RF and microwave test accessories
such as switches, attenuators, adapters, and more. The catalog
features new product highlights and easy-to-read comparison tables
to help you find the information you need to meet your specific
design and test requirements.

Order your free copy today. Just click on the link below.



1.  Viewpoint
Achieving Affordable WiMAX Components

Demand for more services (and bandwidth) continues to send wireless
designers scrambling. Some solutions can be found in higher-order
modulation formats, such as orthogonal frequency division multiplex
(OFDM) techniques. But often, it is a matter of raising the
operating frequency in search of available bandwidth. Implied with
the increase in frequency is an increase in cost. The trend was
evident with wireless local area networks (WLANs), as they moved
from 2.4 GHz to the 5-GHz range. And the trend is permeating
emerging WiMAX applications, which may one day extend to the
millimeter-wave frequency region.

Impressively, in response to the demand for higher-frequency
components, electronic designers respond. One example is the
high-performance 11-GHz power detector developed by Linear
Technology ( http://news.mwrf.com/t?ctl=24D23:49027F ), detailed
below, and selling for just a hair over $3 each. Another example
is a line of LDMOS power transistors introduced by Freescale
Semiconductor ( http://news.mwrf.com/t?ctl=24D1E:49027F ) with as
much as 16 W true linear output power from 3.4 to 3.8 GHz.
These devices (look for the Product Feature in the upcoming
April issue of Microwaves & RF) literally stretch the high-frequency
ceiling once accepted for LDMOS technology.

It has been said many times that this is a resourceful industry.
High-frequency design analog engineers do not often receive the
acclaim of their digital brethren. Yet, they continue to show
amazing creativity and a willingness to tackle almost any challenge,
even to the extent of making millimeter-wave devices affordable to
the masses.

Technical Director

2. News
Dual-Channel Power Detector Reaches 11 GHz

Linear Technology has introduced its model LTC5533 dual-channel RF
power detector with a usable range of 300 MHz to 11 GHz. With the
highest-frequency coverage currently available in a semiconductor
power detector, this device is ideal for emerging WiMAX wireless
applications, power control in power amplifiers (PAs). It draws only
500 microamps per detector and handles a wide input range of -32 to
+12 dBm. The detector boasts 40-dB dynamic range and 45-dB
channel-to-channel isolation. It includes buffer amplifiers and is
housed in a miniature, surface-mount package measuring 4 by 3 mm. It
is prices at $3.20 each in 1000-piece quantities.
Linear Technology ---> http://news.mwrf.com/t?ctl=24D21:49027F

3. News
Group4 Labs Develops GaN On Diamond

Materials developer Group4 Labs (Menlo Park, CA) has announced a
revolutionary gallium-nitride (GaN) on diamond semiconductor wafer.
The firm's Xero Wafer sits less than 0.5 nm away from a synthetic
diamond substrate and features unprecedented heat- and
power-handling capability for high-power, high-frequency electronic
designs. The close proximity of a device's active region to the
diamond results in efficient transfer of heat away from the active
device. The GaN on diamond wafers, which will be initially offered
in 10 x 10 mm square pieces, are currently sold for $450 per unit
through the company's online store.
Group4 Labs ---> http://news.mwrf.com/t?ctl=24D16:49027F

4. News
Seminars Highlight Software Design Tools

In celebration of the releases of two new versions of proven
software design tools, Agilent Technologies is hosting a series of
seminars entitled "Power-of-Two: ADS and GENESYS." These seminars are
scheduled for April 10th through May 31st, from 11 AM through 2 PM.
The seminars, which include a complementary lunch, cover the new
release of Agilent Technologies' Advanced Design System (ADS) 2005A.
They also address the firm's Eagleware GENESYS 2005 for RF System
Architecture Design, and how ADS and GENESYS can work together.
Attendees will learn how GENESYS SPECTRASYS, the industry's first
and only continuous spectrum simulator can be used to speed RF
system architecture design and pinpoint problems early when they are
quick and easy to fix. For more information, visit the link below.
Agilent Technologies ---> http://news.mwrf.com/t?ctl=24D14:49027F

5. News
TestMart and VXI Technology Sign GSA Agreement

In a move designed to save taxpayers' money, TestMart (San Bruno,
CA) and VXI Technology (Irvine, CA) have inked a deal to provide
discounts on modular test equipment to military and government
customers. The deal provides the U.S. government and federal contractor
marketplace with special savings on a select VXI Technology VXIBus,
VMIP(tm), SMIP(tm), VME(tm), and the new Ethernet-based LXI
products. LXI products are used to build instrumentation arrays on
networks that are completely controlled by the network. The
equipment is available to all who qualify under a set of General
Services Administration (GSA) Multiple Award Schedules (MAS).
According to Peter Ostrow, President and CEO of TestMart, "VXI
Technology equipment provides the government channel compact,
portable testing alternatives in the search and procurement of the
most respected brands under GSA contract that are compliant with the
federal Competition in Contracting Act (CICA)."
TestMart ---> http://news.mwrf.com/t?ctl=24D1D:49027F
VXI Technology ---> http://news.mwrf.com/t?ctl=24D20:49027F

************************ ADVERTISEMENT ****************************
                   The search for happiness...
            Are you a company looking for a good engineer?
             Or an engineer looking for a good company?
        Find the right match, at http://news.mwrf.com/t?ctl=24D1C:49027F


6. News
AVX Adds High-Current RoHS-Compliant Caps

Capacitor supplier AVX Corp. (Myrtle Beach, SC) has developed
RoHS-compliant medium-and high-voltage ceramic capacitors for
high-current applications such as military, harsh environment power
supplies, high-voltage coupling and DC-blocking. The SK series is
suitable for medium-voltage (to 500 V) applications, while the SV
series of multilayer capacitors (MLCs) is designed for high-voltage
applications (to 5 kV). According to Craig Hunter, AVX Strategic
Marketing Manager, "The added advantage of both these capacitor
families lies in a special internal design minimizing the electric
field stresses within the MLC. This results in a significant
reduction of partial discharge activity within the dielectric and
has a major impact on the long-term reliability of the product."
AVX Corp. ---> http://news.mwrf.com/t?ctl=24D26:49027F

7. News
Powerwave Connects Chicago Transit Authority

Wireless infrastructure supplier Powerwave Technologies (Santa Ana,
CA) announced the deployment of a multi-technology, multi-carrier
wireless coverage system designed to enhance the Chicago Transit
Authority's (CTA) existing two-way radio system for use by the CTA,
Chicago Police Department, and Chicago Fire Department/EMS
personnel. In addition, the system will be able to accommodate  
commercial services, which will allow customers to use their
wireless  devices throughout CTA's subway system and provide an
additional  revenue stream for the agency. The project was
competitively bid and completed through a collaborative effort
between Powerwave and Aldridge Electric Inc. (Liberty, IL), one of
the largest electrical contractors in the US. Coverage extends
through the subway system's two 11.4-mile tunnels, combining
optical and wireless technologies. Comprised of Powerwave antennas
located throughout the transit system and supporting commercial
services, as well as radiating cables for supporting UHF/VHF
transmissions, Powerwave's fiber-based distributed antenna network
will transmit mobile radio signals from strategically positioned
radio base station hotels outside of the CTA subway tunnel system.
Powerwave Technologies ---> http://news.mwrf.com/t?ctl=24D22:49027F

8.  Happenings - Conferences
2006 IEEE Sarnoff Symposium
March 27-28, 2006
Nassau Inn, Princeton, NJ

Del Mar Electronics Show
April 26-27, 2006
Del Mar Fairgrounds
Del Mar, CA

Broadband Wireless World
April 26-28, 2006
Caesar's Palace Event Center
Las Vegas, NV

IMAPS International Conference on
High-Temperature Electronics (HiTEC 2006)
May 15-18, 2006
Hilton of Santa Fe
Santa Fe, NM

International Microwave Theory & Techniques
Symposium (MTT-S)
June 11-16, 2006
Moscone Convention Center
San Francisco, CA

************************ ADVERTISEMENT ****************************
                    Nominate Your Microwave Legends!

As part of the Microwaves & RF 45th Anniversary celebration in the
August issue, the magazine is spotlighting the top 45 people, places,
and things that have impacted this industry. Nominate your choices
for the Microwave Legends. Simply visit http://news.mwrf.com/t?ctl=24D25:49027F
before April 15th to submit your nominations. On-line voting for all
nominations will commence May 1st and conclude on May 31st.


Read past issues of Microwaves and RF (MWRF) UPDATE e-Newsletter:

Technical Director: Jack Browne
Managing Editor: John Curley

Advertising/Sponsorship Opportunities:
Paul Barkman at 1-908-704-2460 or


To subscribe click here:

To unsubscribe click here:


If you need assistance in updating the information you have provided
to Penton or if you have questions or comments about our privacy
policies, please click on the link below.

Copyright 2006 Penton Media Inc. All rights reserved.

Microwaves & RF
Penton Media Inc.
45 Eisenhower Dr., 5th Floor
Paramus, NJ 07652