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The Design Of Ultra Narrow-Band Amplifiers Using Small Signal Varactor Up-Converters For ESM, ECM, ECCM, And ELINT Applications

2014-01-17 13:49:01| rfglobalnet Downloads

A method is presented in this paper for realizing tunable amplifiers with bandwidths of less than 0.5%; without the use of superconductors and cryogenic cooling. This method uses a small signal varactor up-converter to achieve these ultra narrow bandwidths. The equivalent circuit for the up-converter is presented as well as the circuit configuration of the narrow band negative resistance amplifier. The design and experimental results are presented for a 0.5% bandwidth negative resistance amplifier at 800 MHz; using this unique circuit design. These devices and circuits can be used for electronic warfare applications such as surveillance, electronic reconnaissance, jamming and frequency hopping. By Dr. Alfred I. Grayzel, Dr. Ashok (Ash) K. Gorwara, Paul Kuhn, Planar Monolithics Industries, Inc.

Tags: design small applications signal

 

New Ultra Low Noise GaAs Amplifiers Operate From 10 To 17 GHz

2014-01-17 01:51:05| rfglobalnet News Articles

Custom MMIC, a developer of performance-driven monolithic microwave integrated circuits (MMICs), is adding two new low noise amplifiers, the CMD167 and the CMD167P3, to their growing product line.

Tags: to low operate ultra

 
 

Ultra Low Noise GaAs Amplifiers

2014-01-16 12:42:37| rfglobalnet Products

Custom MMIC is adding two new low noise amplifiers, the CMD167 and the CMD167P3, to their growing product line. Both are ideally suited for EW and communications systems where small die size and low power consumption are needed.

Tags: low ultra noise amplifiers

 

Ultra Clean Announces Upward Revisions to its Q4 2013 Revenue Estimate and Provides Margin ...

2014-01-14 06:00:00| Industrial Newsroom - All News for Today

HAYWARD, Calif. -- Ultra Clean Holdings, Inc. (Nasdaq: UCTT), a developer  and supplier of critical subsystems for the semiconductor capital equipment, medical device, energy, research, and flat panel industries, announced today its revised revenue estimate for the fourth quarter of 2013, representing an increase from its previously issued guidance for the fourth quarter of fiscal 2013.  The Company now expects revenue of approximately $125 million to $127 million, an increase from guidance of ...

Tags: provides clean ultra estimate

 

Ultra Compact Air-Cooled Coolers on Platforms

2014-01-14 01:00:00| Power Technology

Air-cooled cooling has advantages compared to cooling with water. More and more fresh watercooling (rivers, lakes and below ground) is disallowed because of its potential thermal and bio-pollution. Sea water requires the use of expensive materials be

Tags: ultra compact platforms coolers

 

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