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Q: What are some online trade publications for RF Wireless Semiconductor technology ( Answered 5 out of 5 stars,   0 Comments )
Subject: What are some online trade publications for RF Wireless Semiconductor technology
Category: Computers > Wireless and Mobile
Asked by: belliot-ga
List Price: $50.00
Posted: 24 Jun 2005 08:40 PDT
Expires: 24 Jul 2005 08:40 PDT
Question ID: 536637
I'm on a project with a really tight timeframe, so if anyone can get
some answers within the next few hours, I'd be greatly appreciative.
I'm looking to call some experts on RF (Radio Frequency) wireless
semiconductor technology and I thought I'd turn to some of the trade
rags that track that space.  The RF chips I'm looking at (things like
RF diodes, transistors, MMICs, power amps, filters, and duplexers) are
used in wireless mobile handsets and the infrastructure (known as base
stations) that support the calls we make from our phones.  If you can
find a list of magazines or sources you think I should contact in the
next few hours, it would be a huge help.  Please post in chunks as
items become available, as I need to try to get in touch with some
places today.

Request for Question Clarification by websearcher-ga on 24 Jun 2005 08:45 PDT
Where are you located Brian?

Request for Question Clarification by websearcher-ga on 24 Jun 2005 08:51 PDT
The first thing that I've found is RF Globalnet, which touts itself as
"the Internet's leading source of technical information for the
RF/microwave design industry".

RF Globalnet

They have a process for connecting people who need an RF consultant
with consultants.


You have to sign up and provide some information (click next to "I
NEED A CONSULTANT"). However, I'm not sure how *quickly* this will get
you actual contacts.

I'll keep looking


Clarification of Question by belliot-ga on 24 Jun 2005 08:51 PDT
In San Francisco, CA  - PDT

Clarification of Question by belliot-ga on 24 Jun 2005 09:01 PDT
good. stuff like that is perfect.

Request for Question Clarification by websearcher-ga on 24 Jun 2005 09:20 PDT
I found the following magazines/journals that looks very promising:

Microwave Journal
Quote: "For more than 43 years, Microwave Journal has maintained an
editorial balance between theory, practical uses, applications and
news with our technical coverage of the RF, microwave, and wireless

RF Design
Quote: "RF Design magazine provides RF and microwave engineers with
design and development information concerning wireline and wireless
communication's circuits and products using radio frequency signals
going from very low frequency all the way to millimeter waves. And, in
addition, RF Design covers communication circuits involving

Please let me know what I'm feeding you that is of value and what
isn't. I need your feedback to do this task best in the short time



Clarification of Question by belliot-ga on 24 Jun 2005 09:36 PDT
Websearcher, these are great as a start.  Since you found those,
perhaps we can try to get even more specific.  I'm looking to speak
experts who can answer some questions about a few different competing
-FBAR vs. SAW (for RF filters)
-HBT vs. pHEMT (for transistors and power amps)
if you find any articles or publications that discuss these, that
would be great, as I'd love to try to get in touch with the author. 
Subject: Re: What are some online trade publications for RF Wireless Semiconductor technology
Answered By: websearcher-ga on 24 Jun 2005 09:42 PDT
Rated:5 out of 5 stars
Hi Brian:

Thanks for the feedback. I'll move my further input to the Answers
section and keep it coming...

Some U.S. based consultants:

Sanders RF Consulting 
Quote: "We have 15 years experience in consumer and automotive RF
product design, including wireless systems, UHF RFID readers, cellular
handsets (GSM/TDMA), HFC cable telephony and cable modems, 315/902-925
MHz ISM band wireless data links and modems, AM/FM car radios &
automotive wireless electronics, HF/VHF transceivers, remote keyless
entry systems, and industrial process controls.
We specialize in wireless RF communication system and circuit design,
but do a significant and expanding amount of microprocessor, digital
signal processor, audio, and power supply design as part of our
service to our clients."

Apex Wireless Inc.
Quote: "Apex Wireless, Inc. designs and manufactures spread spectrum
radio transceivers and one way RF transmitters and receivers in the
UHF, 900 MHZ, and 2.4 GHz frequency bands. We also provide RF contract
development services and wireless consulting services, as well as
technology licensing. We specialize in low cost one way and two way
radio links in the unlicensed (ISM) frequency bands."

Besser Associates
Quote: "Where training solutions are inappropriate, our experts
contribute their own years of field experience in RF, wireless,
digital, and network engineering to help solve our customers' design
and development problems. Please contact us via email, or by phone,
fax, or conventional mail to receive immediate attention to your
consulting needs."

LBA Group, Inc.
Quote: "Here, you will find a world of RF and wireless
telecommunications industry infrastructure products and services
supplied by the LBA Group companies, as well as resources, tools, and
connections to the dynamic wireless industry and radio frequency
communities worldwide."

R.A. Wood Associates
Quote: "We are a consulting company specializing in providing
innovative engineering solutions for today's industries, utilizing
state-of-the-art computer technology and computer programming. Our
specialty is in the field of RF and microwave systems design."
Contact: Bottom of above page

These companies were all found through:

RF Cafe


Clarification of Answer by websearcher-ga on 24 Jun 2005 09:57 PDT
Thanks for the further clarification. Here's a couple of people to start with:


Understanding Surface Acoustic Wave (SAW) Devices for Mobile and Wireless 
Applications and Design Techniques 
Note: Check out questions 47 - 53
Author: Colin K. Campbell, Ph.D., D.Sc. 

The Evolution of SAW Technology in Wireless Communications
Author: Kevin Schoenrock
 (see bottom of page)

HBT vs. pHEMT 

HBT vs. PHEMT vs. MESFET: What's best and why 
Author: Dimitris Pavlidis

Try these out and let me know. 


Request for Answer Clarification by belliot-ga on 24 Jun 2005 11:21 PDT
These were perfect- I got in touch with a couple of them and they were
just who I needed to talk to.  If you can find one or two more experts
that would be great, otherwise, I'm very satisfied.  Thanks!

Clarification of Answer by websearcher-ga on 24 Jun 2005 12:18 PDT
Hi Brian: 

I was able to find a couple more experts/papers:

Performance Comparison of HBTs and Quasi E-mode PHEMTs for Single
Supply High Efficiency Power Amplifiers
Authors: Y. Tkachenko, C. Wei, S. Sprinkle, J. Gering, J. Lee, T. Kao,
Y. Zhao W. Ho, M. Sun and D. Bartle
Contact: Alpha Industries. Inc., 20 Sylvan Rd, Woburn, MA 01801 and
1230 Bordeaux Dr, Sunnyvale, CA 94089 Tel: 781-935-5150; E-mail:

RF Power Amplifiers for Cellphones
Author: C.E. Weitzel
Contact: Motorola, Inc., Semiconductor Products Sector
2100 E. Elliot Rd., Tempe, AZ 85284

Some new technologies in future mobile terminal
Author: Hui Xiao
Contact: See details at the end of the paper

I hope these help too!

Some of the many searches I used (on Google) in this question were:
* RF wireless
* RF consultants OR experts
* RF radio frequency consultants OR experts
* RF consultants phones  
* HBT vs pHEMT 
* HBT pHEMT research
* HBT pHEMT comparison 
* fbar saw comparison 

belliot-ga rated this answer:5 out of 5 stars and gave an additional tip of: $10.00
Nice work... very helpful

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