 Keeping the Right Perspective on Timing
By E.L. Fox, Jr.
Fox Electronics
Discussions about technology have the power to clarify or the power to confuse, depending on the perspective they take. And when you overlay business desires for smaller, more powerful, more economical, and more energy-efficient components, it becomes even easier to overlook the underlying physics behind technology options.
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LightSquared:
The Show’s Over
…Or Should Be
By Barry Manz
There are a lot of very technically astute people at the Federal Communications Commission. Many have decades of experience at every level of RF and microwave technology. How then might LightSquared’s proposal for a satellite/terrestrial LTE network have ever gotten past its first hurdle? Even a cursory inspection of the plan, in which the company's network would operate extremely close to GPS frequencies at L-band, makes interference to GPS devices almost a certainty. Read More...
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 Microwave Precision Fixed Attenuator
The YAT-1+ is a microwave precision fixed attenuator with a wide bandwidth of DC to 18 GHz, excellent attenuation accuracy and flatness, and a miniature package (MCLP™ 2 x 2mm). Applications include cellular, PCS, communications, radar and defense.
Mini-Circuits
 New 3 dB 90º Hybrid Coupler
Model QH9141 is a connectorized hybrid coupler covering the 150 to 2000 MHz band. Rated for 150W CW, this unit will tolerate severe port-to-port unbalances while operating with an insertion loss of only 0.85 dB maximum. Operating temperature range is -55 to +85ºC.
Werlatone
 New 4 GHz Oscilloscope
The R&S RTO1044 4 GHz high-performance oscilloscope with its 20 Gsample/s sampling rate addresses a wide variety of applications. It is ideal for analyzing fast signals and steep edges. The unit can handle different data interfaces up to a data rate of 1.6 Gbps.
Rohde & Schwarz
 Resistive Power Divider/Combiner
Model 151-270-002 is a 2-way, 50 ohm resistive power divider/combiner that has a DC to 6 GHz operating frequency range, 1.50:1 VSWR, and SMA female connectors. It exhibits 1 dB nominal insertion loss (above theoretical loss), +/-0.5 amplitude tracking, and more.
Broadwave Technologies
See all products in this issue
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 Headlines: Thursday, May 17, 2012 |
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By Karen Hoppe, Editor, Microwave Product Digest
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By Bob Pinato, MPD Editorial Advisor
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By Emerson & Cuming Microwave
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By Hittite Microwave
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| This Month's Cover Products |
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Class A RF Amplifier
Model 5227 is a Class A RF amplifier covering 80 to 1000 MHz with 500W minimum output power. This is an ideal choice for test and measurement systems needing high power in the smallest commercially available package possible (just 5U tall). It comes standard with a front panel controller allowing gain adjustment, forward and reflected power monitoring, and an internal Automatic Leveling Control. In addition, this RF amplifier utilizes IEEE-488, RS-232 and Ethernet connectivity for full remote operation.
Ophir RF |
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Gallium Nitride MMIC Power Amplifier
The AM006041SD-2H is an ultra-broadband GaN MMIC power amplifier with 21 dB gain and >42 dBm output power over the 0.03 to 6 GHz band. It is a drop-in carrier to be screwed to a metal heat sink and is RoHS compliant. The unit is 50 ohm matched at input and output, with a typical return loss of 17 dB at input and 6 dB at output. Applications include software radio, instrumentation and ECM.
Amcom |
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Precision Connectors for .047 Semi-Rigid Cable
A new line of precision connectors designed for .047 semi-rigid cable has both 1.85 and 2.92mm Male and Female connectors available, and was designed for low VSWR and insertion loss. The 1.85mm series performs to 65 GHz and the 2.92mm series performs to 46.5 GHz. Both designs incorporate fully captivated center contacts with rear sockets that accept a pointed cable center conductor, eliminating the need for center contact soldering.
Precision Connector, Inc. (PCI) |
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Band Reject Filters -- Tunable
Band stop and cavity filters that can be readjusted by the customer to new center frequencies are now available. These filters are tunable over a +/-7.5% center frequency range with minimal change in bandwidth. Power rating is 2.0W, impedance is 50 ohms.
RLC Electronics |
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Rugged Noise Generator
The NW-ATE series, an economical and rugged programmable noise generator, now covering from 10 MHz up to 40 GHz, is ideal for military and SATCOM applications including Ka-band tests such as BER vs. Eb/No, interference, and jamming. The instrument is fully programmable from the front panel and remotely via GPIB and Ethernet. Output level is controlled by an internal broadband variable attenuator in 1 dB steps. Many other options are available including finer attenuation resolution, an internal signal combiner and custom frequency ranges.
Noisewave |
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C-Band Integrated Filter/LNA
This new ruggedized C-band filter/LNA was designed for use in eliminating interference caused by navigational communications (radar) of commercial and military aircraft, as well as coastal and marine vessels operating above and below the C-band. It offers 23 dB gain and a low noise figure of 1.1 dB in a hermetically sealed package.
Networks International Corp. |
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SEARCH MPD’S EXTENSIVE DATABASE! |
MILITARY MICROWAVE DIGEST |
•Switch Solutions for Systems with Low PIM Requirements
Dow-Key Microwave has invested in R&D for new RF switch products designed specifically to reduce intermodulation (IM) in coaxial switches.
Dow-Key Microwave
• How to Specify RF and Microwave Filters
Covers cavity, ceramic, LC, crystal and helical filters.
Anatech Electronics
• Establishing An RF Safety Program
Topics include basic RF safety, standards, monitoring instruments, performing an emitter inventory, and the steps required to create a program.
Narda Safety Test Solutions
• Mounting Considerations for Medium Power Surface-Mount RF Devices
Covers all factors that must be considered when mounting SMT devices.
TriQuint Semiconductor
• Biasing MMIC Amplifiers
How to bias MMICs along with theory and techniques.
Mini-Circuits |
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