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August 2010
• Electro-Mechanical Broadband RF Switch.
• Single-Stage Driver Amplifier
• Quad-Band EDGE Radio Solution
• Modeling 3G / WCDMA / HSDPA
• Composite Filters
• Integration of Waveguide
• Coaxial Components
• Antennas Needed
• And More...
 
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Fully Matched Cascadable Amp
The TQP3M9009 has been added to the company’s low noise gain block family for high performance 3G/4G infrastructure. This cascadable amplifier is fully matched internally, allowing designers to focus on system level needs. It operates over a broad .05 to 4 GHz frequency range.

Bandpass Filter
Part number 2965-SMA is a 500 MHz bandpass filter. The filter has a typical 1 dB bandwidth of 8 MHz, insertion loss of 6.5 dB and typical 40 dB bandwidth of 52 MHz. It is supplied in a 0.6 x 0.6 x 2.25" SMA package and may be customized for other center frequencies and bandwidths.

UltraFast™ Digitally Programmable LDO
The LT3071 is the second in a family of digitally programmable linear regulators with the lowest dropout voltage, lowest noise, and fastest transient response of any monolithic 5A LDO currently available. Dropout voltage at 5A is an ultralow 85mV. Its QFN package is 4 x 5 x 0.75mm in size.


Microwave Power MMIC
A 4W C-Band GaAs MMIC for satellite applications, the TMD0608-4 operates in the 5.65 to 8.50 GHz range. With this broad bandwidth, a high gain of 27 dB throughout the operating range, and 50 ohm internal matching, this device is well suited for use as a pre-amplifier in C-Band satellite and terrestrial communications.

USB Power Sensors
The U2000 Series USB-based power sensors are compact, portable solutions that allow average power measurements without power meters. All sensors, except the U2004A model, feature internal triggering and trace display capabilities. Current users of these sensors can upgrade their firmware for free.

Directional Couplers
Miniature air dielectric directional couplers are rugged, lightweight devices that offer lower insertion loss than comparable stripline units. The simplified construction allows for greater flexibility in creating customized configurations. Any port can be used as the input with these devices.

Elliptic Lowpass Filter
Part number 2969-SMA is a high order 10 MHz elliptic lowpass filter with sharp transition to the stopband and high stopband attenuation. Typical 1 dB bandwidth is 10.9 MHz with minimum 84 dB attenuation at 13.125 MHz. It is supplied in a 0.6 x 0.6 2.25" package with SMA connectors.

Directional Coupler
Model 110067016 directional coupler has a frequency range of 10 to 67 GHz, 7.25 directivity, and maximum VSWR (any port) of 2.0. Coupling (with respect to output) is 16 +/-1.1 dB and frequency sensitivity is +/-2.0 dB. Operating temperature range is -54 to +85ºC.

Fixed Frequency Synthesizer
The SFS6400A-LF in C-band is a single frequency synthesizer that operates at 6400 MHz. This synthesizer features a typical phase noise of -88 dBc/Hz @ 10 KHz offset and typical sideband spurs of -65 dBc. Its PLL-V12N package measures only 0.60 x 0.60 x 0.13".

Higher Power GaAs FETs
The company has expanded its Ku-Band GaAs FET lineup with two higher output power devices rated for 18 and 30W. Models TIM1213-18L and TIM1213-30L operate in the 12.7 to 13.2 GHz range and are targeted for use in microwave radios for microwave links and satellite communications.
 
EMT SMT Diode TVS Connectors
Now available are transient protection solutions embedded within the connector shell utilizing surface mount (SMT) diodes. Using SMT diode technology allows for increased flexibility in the packaging of transient protection within the connector, saving both space and weight.


Low Noise Gain Block
Model TQP3M9008 is a new low noise gain block that offers high gain over a broad .05 to 4 GHz frequency range. It is a cascadable amplifier that requires no external matching components and can reduce BOMs. The gain block provides 35.5 dBm OIP3, while maintaining a low 1.3 dB noise figure.

 

 

December 2009
VIEW FROM THE TOP

Scott N. Talbot
General Manager, EM Research, Inc.

Q: Last year, we asked what kind of impact the worldwide economic crisis had on the markets you serve and on how you run your business under these conditions. One year later, what is your perspective?

A: As we rapidly approach our 20-year anniversary in the microwave industry, we have successfully survived a number of economic crises. We continue to build our customer base in both the military and commercial arenas. In any economy (good or bad) it is important to strive to diligently respond to customers’ specific needs. We will also continue to use our resources to improve our in-house capabilities as we develop innovative products to support existing and emerging technologies.

Q: Do you think that spending for RF and microwave products will increase or decrease in the 2010 military budget?

A: We believe that spending for RF and microwave products will be at the same level as 2009. There have been some discussions which indicate there will be significant shifts in spending. Programs, which were previously in the R&D budgets, slated for preproduction and production this year are being pushed out, or shelved. However there are also many active programs both in R&D and production of existing systems.

Q: There’s a serious shortage of RF engineers out there – what’s the solution? Is your company involved in any programs that might promote or encourage talented engineering students to concentrate on a career in the microwave industry?

A: We maintain a good relationship with a local university that has an excellent microwave engineering program. We are actively involved with the university and hire engineering interns while they pursue technical degrees. We have also been involved with the community by participating in career fairs and giving talks to high school and junior high school students.

Q: WiMAX networks are being deployed now and LTE networks are a year or so behind. Do you expect to see (or are you already seeing) a positive impact on hardware orders for products based on either of these technologies?

A: According to published literature WiMAX is presently beginning deployment. However, due to the current economy the WiMAX production numbers have diminished somewhat from their previous predictions. In our opinion, because of the economy and relatively high unemployment, the development of LTE networks in the United States will slow down.
Our lineup of miniature, low cost, surface-mount frequency synthesizers and phase-locked references can be custom-designed for point-to-multipoint / microwave links, modems, basestations and other backhaul / network applications. This will allow us to support the evolution of WiMAX and LTE now and in the future.

Q: What do you feel is the greatest opportunity for manufacturers in either the commercial or military sectors?

A: As I mentioned last year, achieving wider bandwidths with better specifications in smaller and less expensive packages continues to be very important for all microwave component companies. We continually push our existing and next generation of products for both commercial and military markets higher in frequency and smaller packages. For instance, we now offer our SLX and LX series SMT synthesizers with extremely low power requirements of 3V at 20 mA. Also, we now offer our LX Series with an optional internal reference and our PN Series SMT synthesizer up to 10 GHz with >30% bandwidths. We look forward to providing highly-sophisticated products that are smaller and continue to meet the stringent environmental requirements of hi-rel products. ♦

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