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68 Pages·2014·7.62 MB·English

ALSO PUBLISHED ONLINE: january2014
www.highfrequencyelectronics.com
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IN THIS ISSUE:
Resolving Safety-Critical EMI
Problems Between AM
Transmitters and Cranes Using a
3D Field Solver
Products:
Defense Electronics
Interconnects
Test & Measurement
Ideas for today’s engineers: Analog · Digital · RF · Microwave · mm-wave · Lightwave
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ALSO PUBLISHED ONLINE AT: January2014
www.highfrequencyelectronics.com Vol. 13 No. 1
22 32 16
EM Simulation Harmonic Suppression Featured Products
Resolving Safety- Enhancing Second
Critical EMI Problems Harmonic Suppression
Between AM Transmit- in an Ultra-Broadband
ters and Cranes Using a RF Push-Pull Amplifier
3D Field Solver
By Gavin T. Watkins
By Marcelo Bender
Perotoni and Roberto
Menna Barreto
Including RFMW,
AtlanTecRF, AR
RF/Microwave
Instrumentation, RLC
Electronics, Passive Plus,
Precision Devices.
By incorporating an
attenuator and delay
line in one of the
Electromagnetic paths the distortion
simulation was used suppression of the
to identify the cause amplifier is modified.
of the problem when
conventional on-site
analysis approaches
failed.
42 12 6
New Products In The News Editorial
AwLSwOw PU.BhLiISgHhEDfr OeNqLuINeE:n cyelectronics.com JANUARY2014
ENHANCING SECOND
HARMONIC SUPPRESSION IN
AN ULTRA-BROADBAND RF
PUSH-PULL AMPLIFIER
IN THIS ISSUE:
Featuring Micrel, Wurth TranRsemsoittlevPirnrso gab nSleadmf eC3strD yaB- enFCieterwisltd eicU eSasnioln lEAgvM eMarI
Products:
Defense Electronics
Electronics Midcom, Highlighting Harold Interconnects
Test & Measurement
Pentek, T-Tech, Pro- “Deke” Williams, EADS
Comm, ARRA Inc., North America, Rohde Ideas for today’s engineers: Analog · Digital · RF · Microwave · mm-wave · Lightwave
AMCOM, Quick-Pak, & Schwarz, Boeing, Commentary by Senior
and more. National Instruments. Tech Editor Tom Perkins.
6 Editorial 12 In the News 16 Featured Products
8 Meetings & Events 42 New Products 64 Advertiser Index
4 High Frequency Electronics

EDITORIAL
Milestone for
Vol. 13 No. 1 January 2014
Publisher
Scott Spencer Experimenters
[email protected]
Tel: [phone]
Associate Publisher/Managing Editor
Tim Burkhard
[email protected]
Tel: [phone]
Tom Perkins
Senior Technical Editor Sr. Technical Editor
Tom Perkins
[email protected]
Tel: [phone] marks the 100th anniversary of the founding of
the American Radio Relay League. These days the
Vice President, Sales
Connecticut-based organization is more often referred to
Gary Rhodes
as ARRL, the national association for AMATEUR
[email protected]
Tel: [phone] RADIO®. This would be because these days messages are
rarely relayed across the country by different stations.
Editorial Advisors:
The “miracle” of the early days of amateur radio is no
Ali Abedi, Ph.D.
Candice Brittain longer a key service provided by radio amateurs (hams).
Paul Carr, Ph.D. But ham radio remains a last-resort means of communi-
Alen Fezjuli cations “when all else fails”. And it continues to be a fun hobby with many
Roland Gilbert, Ph.D.
aspects for experimenting, learning electronics, both analog and digital, and,
Sherry Hess
in today’s parlance, “social networking” with friends and strangers.
Thomas Lambalot
John Morelli ARRL has about 160,000 members, far fewer than the number of hams
Karen Panetta, Ph.D. just in the United States alone. In spite of this there is a formidable influ-
ence exerted by the US Federal Communications Commission (FCC) and
Business Office
the International Amateur Radio Union (IARU) and International
Summit Technical Media, LLC
One Hardy Road, Ste. 203 Telecommunication Union (ITU).
PO Box 10621 When we closely examine the progress made in communications and
Bedford, NH 03110 broadcasting, the advances made in such a short time are mind-boggling.
The progress achieved is loaded with idiosyncrasies. AM radio’s heyday per-
Also Published Online at
www.highfrequencyelectronics.com haps only lasted about 20 years, yet it still exists today. Major Edwin
Armstrong’s development of Frequency Modulation was initially fought by
Subscription Services
some seeking to reap fortunes in AM radio manufacture. For many years
Sue Ackerman
engineers and technicians seeking employment had a distinct advantage in
Tel: [phone]
[email protected] job hunting if they possessed an amateur radio license. Even in wartime,
when most ham operations were curtailed, hams were in high demand—not
Send subscription inquiries and address changes to the
only for their operating skills, but particularly in WWII for providing their
above contact person. You can send them by mail to the
Business Office address above. equipment for the war effort.
ARRL Major Happenings
Some Key ARRL milestones extracted from their 2014 Calendar include:
Our Environmental Commitment • 1914 - founding of the organization by Hiram Percy Maxim and
High Frequency Electronics is printed
on paper produced using sustain- Clarence D. Tuska,
able forestry practices, certified by • 1915 - the first edition of QST, the journal of the ARRL published pri-
the Program for the Endorsement
of Forest Certification (PEFC™), vately by these same gentlemen in,
www.pefc.org • 1926 - the Radio Amateur’s Handbook first published
• 1928 - first ARRL on-the-air contest International Relay Party
• 1933 - ARRL holds its first Field Day, a nationwide (US and Canada)
demonstration of rapid deployment of communications assets in an
emergency
• 1935 - Amateur Radio Emergency Service (ARES®) created
Copyright © 2014, Summit Technical Media, LLC
6 High Frequency Electronics
• 1936 - W1MK, ARRL station aurora, tropospheric bending, and The Next 100
located at Brainard Field near meteor scatter are routinely exploited. The next century will be both
Hartford is destroyed by Spring flood Adding to these developments, we exciting and challenging as precious
• 1938 - ARRL station W1AW have satellite communications, moun- frequency spectrum demand contin-
(deceased H. P. Maxim’s call letters) taintop repeaters, introduction of inte- ues to grow. Because of its members,
built in Newington, Connecticut grated circuits, tiny hand-held trans- ARRL will continue exert influence
• 1951 - ARRL promotes benefits ceivers, amateur television (slow and over the great developments ahead.
of single sideband (SSB) voice com- fast scan), packet, PSK-31 and other Happy New Year!
munications digital techniques, and Software
• 1957 - The International Defined Radio (SDR).
Geophysical Year – ARRL receives
contract to conduct propagation stud-
ies
• 1963 - ARRL builds new head-
quarters facility adjacent to W1AW
station in Newington
• 1984 - FCC delegates testing
and ARRL becomes a Volunteer
Examiner Coordinator (VEC)
• 2012 – ARRL starts publishing
digital edition of QST magazine
People and Technology
When I first earned an amateur
license in 1957, many of the early pio-
neers were still alive and active. Many
also worked in the field of electronics
and would likely have read HFE had
it existed then. Notable hams include:
Chet Atkins, Tex Beneke, Frank Bliley,
Walter Cronkite, Arthur Godfrey, Yuri
Gagarin, Senator Barry Goldwater, Al
Gross, Bob Heil, Walter “Pee Wee”
Hunt, Jack Kilby, General Curtis
LeMay, Bill Leonard, Roy Neal, Percy
L. Spencer (our Publisher’s grandfa-
ther), Alvino Ray, Jean Shepherd,
Phillip H. Smith, Dr. Joe Taylor, King
Hussein of Jordan, Dr. Ulrich Rohde,
Paul Tibbits, and David Packard.
I regret that as a teenager I did
not embrace or cherish the opportuni-
ties for dialog with many seasoned
mentors to the degree possible. But
perhaps many of these folks preferred
to look to the future anyhow. And oh,
how advances were made. Transistors
replaced vacuum tubes, low noise
receiver preamplifiers for VHF, UHF,
and microwaves evolved, and Earth-
Moon-Earth (EME) bounce became
commonplace. Various unique propa-
gation phenomena such as sporadic E,
Get info at www.HFeLink.com
MEETINGS & EVENTS
C Linear Technology
onferenCes
LTSpice IV
January 19 – 23, 2014 LTpowerCAD
IEEE Radio and Wireless Symposium LTpowerPlay
Newport Beach, Calif. Amplifier Simulation & Design
http://www.radiowirelessweek.org/wisnet/ Filter Simulation & Design
Timing Simulation & Design
January 28 – 31, 2014 Data Converter Evaluation Software
DesignCon http://www.linear.com/designtools/software/
Santa Clara, Calif.
http://www.designcon.com/santaclara/ National Instruments
LabVIEW Core 1
March 19 – 20, 2014 Online
Microwave & RF http://sine.ni.com/tacs/app/fp/p/ap/ov/pg/1/
Paris LabVIEW Core 2
www.microwave-rf.com Online
http://sine.ni.com/tacs/app/fp/p/ap/ov/pg/1/
March 23 – 27, 2014
Object-Oriented Design and Programming in LabVIEW
IEEE International Wireless Symposium (IWS 2014)
Online
Xi’an, China
http://sine.ni.com/tacs/app/fp/p/ap/ov/pg/1/
http://iws-ieee.org/
Free, online LabVIEW training for students and teachers.
May 8 – 9, 2014 http://sine.ni.com/nievents/app/results/p/country/
IEEE MTT-S International Wireless Power Transfer (WPTC us/type/webcasts/
2014) Webcasts on demand.
Jeju, Korea http://search.ni.com/nisearch/app/main/p/bot/no/
http://www.wptc2014.org/ ap/tech/lang/en/pg/1/sn/catnav:mm,n15:WebcastsOn
Demand,ssnav:dzn/
June 1 – 6, 2014
LabVIEW user groups.
IEEE International Microwave Symposium (IMS2014)
https://decibel.ni.com/content/community/zone/lab-
Tampa, Florida
viewusergroups
http://ims2014.mtt.org/
C p
all for apers
s C
hort ourses
September 1 – 3, 2014
Besser Associates
IEEE International Conference on Ultra-WideBand (ICUWB)
besserassociates.com
Paris
Tel: [phone]
Abstract submission deadline: March 11, 2014
New Courses Final submission deadline: June 6, 2014
Course 227: Wireless LANs Notification of acceptance date: May 12, 2014
Course 226: Wireless/Computer/Telecom Network http://www.icuwb2014.org/
Security
September 14 – 19, 2014
Course 228: GaN Power Amplifier Design
International Conference on Infrared, Millimeter, and
Course 223: Fundamentals of LTE, HSPA, & WCDMA
Terahertz waves (IRMMW-THz)
Course 221: B ER, EVM, & Digital Modulation Testing
Tucson, Ariz.
for Test & Product Engineers
Abstract submission deadline: March 21, 2014
Final submission deadline: May 25, 2014
C -s
ompany ponsored Notification of acceptance date: April 20, 2014
t & t http://www.irmmw-thz.org/
raining ools
October 19 – 22, 2014
Analog Devices 2014 IEEE Compound Semiconductor Integrated Circuit
Training, tutorials and seminars. Symposium (CSISC)
http://www.analog.com/en/training-tutorials-semi- La Jolla, Calif.
nars/resources/index.html Abstract submission deadline: May 2, 2014
Final submission deadline: July 25, 2014
AWR
Notification of acceptance date: June 13, 2014
On-site and online training, and open training courses on
http://www.csics.org/
design software.
http://web.awrcorp.com/Usa/News--Events/Events/
Training/
8 High Frequency Electronics