Editorial

Uncertain Times for DefenseADCs and DACs Penetrate Sacred Ground
By Barry Manz

The impact of converting analog signals to digital form is one of the greatest advances the electronics industry has ever achieved.
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Defense News

Northrop Grumman MMICs Speed AEHF Production
Northrop Grumman has fabricated more than 36,000 MMICs covering frequencies from 300 MHz to 300 GHz for the U.S. Air Force's fifth and sixth Advanced Extremely High Frequency (AEHF) satellites, speeding production of both spacecraft, according to Space Daily.

Article Highlights China Cruise Missile Threat
While the world focuses on China’s ballistic missiles, the country is rapidly developing advanced capabilities for its cruise missiles, according to The National Interest. This is occurring at the same time the U.S. Navy has limited the type and quantity of its own anti-ship cruise missiles, according to the article.

Iran Claims It Reverse-Engineered RQ-170 UAV
Iran says it has copied announced on Sunday that it has copied an RQ-170 Sentinel UAV that it says the country "commandeered" in 2011, after his allegedly being "brought down by the Iranian Armed Forces' electronic warfare unit" in December 2011, according to Iran's Tasnim News Agency. That Iran captured the UAV is not in doubt: U.S. President Barack Obama asked Iran sent to return it after it was captured.

Israeli Navy Gaining Greater Capabilities
The Israel Navy has begun a program to enhance its sea-to-surface missile capabilities, a senior naval source told The Jerusalem Post, who said that the efforts were part of a planned program to increase the role of the navy in integrated warfare capabilities.

House House to Keep A-10, Other Programs
The House Armed Services Committee (HASC) is opted to fund a broad array of projects and has stated its goal of protecting every possible defense system. For example, the committee left the Lockheed Martin F-35 Joint Strike Fighter largely intact and up the funding for Boeing's EA-18G Growler electronic attack aircraft.

EW Development Key Element of 2015 Budget
The proposed defense budget may be leaned out but electronic warfare will receive considerable funding as the need for it is growing, according to an interesting story in the LA Times.

Insight into Hypersonic Weapons
An article in The Interpreter published by the Lowy Institute for International Policy contains an interview by Harry Kazianis, a non-resident senior fellow at the China Policy Institute (University of Nottingham) with John Stillion, a senior fellow at the Center for Strategic and Budgetary Assessments (CSBA) into the workings of hypersonic weapons.

Products for Defense
 
Ultra-Wideband Amplifier The CMD201 is a DC to 20 GHz distributed MMIC power amplifier in die form. It delivers greater than 20 dB of gain from DC to 20 GHz, with a corresponding output 1 dB compression point of +29 dBm and an output IP3 of +38 dBm at 10 GHz. The CMD201 power amplifier offers ultra-wideband performance, high linearity, high output power, excellent return losses, and a small die size. An off-chip bias network is required for operation. Ideal applications are microwave radio and VSAT, telecom infrastructure, test instrumentation, military and space, and fiber optics.
Custom MMIC
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HMIC Silicon PIN Diode Switches The MASW-011052 and MASW-011053 are wideband switches designed for customers who require broadband, integrated, versatile and small switch solutions. They provide industry leading low insertion loss, high isolation, high power handling and low harmonic and intermodulation distortion, allowing customers to achieve high performance in a small form factor. Functioning up to 26 GHz, the switches boast an integrated bias network and the company’s patented HMIC technology, providing exceptional reliability. The HMIC process allows the incorporation of silicon pedestals that form series and shunt diodes or vias by imbedding them in low loss, low dispersion glass. By using small spacing between elements, this combination of silicon and glass provides the customer with low loss and high isolation performance with exceptional repeatability. Operating over the 2 to 18 GHz bandwidth, the switches are fully monolithic and RoHS compliant.
MACOM Technology Solutions
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GSM Monitoring Receiver The newest member of the Cobalt® family, Model 52663 is the industry’s first full spectrum GSM channelizer 3U VPX module. Using a highly-optimized IP core for the Xilinx Virtex-6 FPGA, the 52663 is ideal for mobile monitoring systems that must capture some or all of the 1100 uplink and downlink signals in both upper and lower GSM bands. This full global system for mobile communications spectrum monitoring targets homeland security, government and military applications. Model 52663 accepts four analog inputs from an external analog RF tuner, such as the Pentek Model 8111, where the GSM RF bands are down converted to an IF frequency. These IF signals are then digitized by four A/D converters and routed to four channelizer banks, which perform digital downconversion of all GSM channels to baseband. Two of the banks handle 175 channels for the lower GSM transmit/receive bands and two banks handle 375 channels for the upper bands. The DDC channels within each bank are equally spaced at 200 kHz. Each DDC output is re-sampled to a 4x symbol rate of 1.08333 MHz to simplify symbol recovery. Every four DC outputs are combined into a frequency-division “super channel” that allows transmission of all 1100 channels across the PCIe Gen 2 x 8 interface. The GSM channelizer IP core is supported with additional factory-installed FPGA functions including packet formation, time stamping, four DMA controllers, gating and triggering. Baseband super channel packets are sent via DMA controllers to processor memory where customers apply processing algorithms. The 3U VPX form factor of the Model 52663 is ideal for mobile platforms. Ground or airborne monitoring platforms can now scan the entire GSM spectrum for all uplink and downlink signals. Its small size and complete spectrum coverage makes it easier to deploy small systems near cell phone towers. Rugged and conduction cooled packages address the needs of extreme environment platforms.
Pentek
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Broadband Amplifiers Ten new medium power broadband amplifiers are offered in 1 and 2W models and range in frequency from 2 to 18 GHz depending on the RF amplifier configuration. The excellent performance of these broadband RF amplifiers is achieved using a hybrid microwave integrated circuit design and advanced GaAs pHEMT technology. The connectorized SMA amplifier modules are unconditionally stable and include built-in voltage regulation, bias sequencing, and reverse bias protection for added reliability. These wideband power amplifiers have over-voltage protection that is installed externally for easy repair. These hi-rel RF amplifiers are fully matched internally for 50 ohm input and output, which eliminates the need for any additional sensitive external RF tuning components. All ten are housed in hermetically sealed modules and will operate from -55 to +85ºC.
Pasternack Enterprises
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High Temperature Dielectrics The high-reliability APS Series of multilayer ceramic capacitors (MLCCs) for COTS applications has had high temperature X8R and X8L dielectric components added to the line. Extensively tested using many of the MIL-STD test methods as used in MIL-PRF-55681, which negates the need for customer-specific drawings, APS Series MLCCs exhibit an ultralow field failure rate of <1ppb. Now available in NP0, X7R, X8R and X8L dielectrics, in addition to a wider capacitance range than MIL spec parts and a variety of case sizes, voltages, and termination finishes, APS Series surface mount MLCCs satisfy COTS requirements for higher CV demands and PCB space-saving requirements and provide high-reliability performance in a broad range of critical applications. They are available in six case sizes spanning 0603 to 2220, six voltages spanning 16 to 500V, and capacitance values spanning 10pF to 22µF.
AVX Corporation
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Integrated Down Converter The CHR3762-QDG is a multifunction monolithic receiver, which integrates a balanced cold FET mixer, a LO buffer and a RF low noise amplifier. Featuring broadband coverage of 5.5 to 9 GHz, it is designed for a wide range of applications from military to commercial communication systems. The circuit is manufactured with a pHEMT process, 0.25µm gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is supplied in a RoHS compliant SMD package.
United Monolithic Semiconductors
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Pressurized Connectors The pSeries pressurized connectors provide low-loss, high-stability performance through 30 GHz at +/-65 psi. These pressurized connectors, which meet the IP68 standard, feature a simplified, three-piece design—body, center contact, and an innovative dielectric—which eliminates troublesome internal O-rings, gaskets and silicone greases. They are vital where high pressure is maintained for extended periods and in environments needing protection against moisture and other contaminates, such as aviation and marine applications. The pSeries exhibits low-loss characteristics and meets MIL-STD 202 Method 212, Condition D (+125ºC fluorocarbon leak) test conditions. Connector seal integrity exceeds 10-5 cm3/s when tested under 30 psi pressure of alcohol per STI 8.2.4-13. The proprietary insulator also offers five times more thermal stability than standard PTFE insulators found in other pressurized connectors. The pSeries is available in a variety of different connector types, including 2.92mm, 3.5mm, SMA, TNC and Type N series.
San-Tron
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MMD March 2014

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Current Articles

3-D Printing Boresights Antenna Manufacturing
Additive 3-D manufacturing, that is, making a three-dimensional solid object of virtually any shape based on a model created in a 3-D design tool, is changing the way many products are made and who can make them.

2015 Defense Budget Retains Key Programs
On March 2, President Obama revealed the 2015 federal budget, and although in its present form it has absolutely no chance of being passed by Congress, it does contain what the Pentagon and the administration believe the US needs to maintain its strong military presence throughout the world.

No Country for Old Wart Hogs?
When federal agencies propose budget cuts, trade-offs are inevitable. The latest example comes from Defense Secretary Chuck Hagel, who on February 24 recommended among other things to mothball the venerable fleet of Air Force A-10 “Warthog” close-air-support aircraft and the legendary U-2, while reducing the number of Littoral Combat Ships (LCS) from 52 to 32.

3-D Printing: Growing Like a Weed
Only a few years ago, 3-D printing for the masses was essentially unknown outside of laboratories and academia, but that is changing rapidly. In fact, the use of 3-D printing to produce parts for final products is encroaching on 30% of the total number of 3-D printed parts, according to analyst firm Wohlers Associates, which has been following this market closely as long as anyone.

 
 
 
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