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Industry News

Endwave Announces Release of Millimeter-wave Successive Detection Log Video

June 6, 2007
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Endwave Corp., a provider of high frequency RF modules for telecommunications networks, defense electronics and homeland security systems, has announced the release of a new series of millimeter-wave successive detection log video amplifiers (SDLVA) as part of the expanding product line from the acquisition of ALC Microwave.


These products are ideal for use in early warning and ELINT receivers, DF radar systems, IFMs and other radar and missile guidance systems.

Endwave is now delivering SDLVAs in full and partial band configurations to cover the critical 18 to 40 GHz bandwidth:

• 18 to 26 GHz: ASDA-81826

• 26 to 40 GHz: ASDA-82640

• 18 to 40 GHz: ASDA-81840

These products are derivatives of ALC’s legacy 18 to 40 GHz DLVAs, but offer improved sensitivity and increased dynamic range in this advanced SDLVA architecture. These advanced ALC Log Amplifiers™ also offer excellent pulse accuracy and stable thermal performance from -45° to +85°C.

Typical performance for the full-band 18 to 40 GHz SDLVA (P/N: ASDA-81840):

Tangential signal sensitivity: <-65 dBm at 85°C (30 MHz Video BW)

Dynamic range: >69 dB

Log linearity: < +/- 1.0 dB

Frequency flatness: < +/- 1.5 dB

Composite accuracy: +/- 4 dB max. (– 45° to 85° C)

Rise time: <10 ns

Recovery time: <50 ns

VSWR in/out: <2.5:1

A popular option includes a limiter at the RF output, which is typically tailored to meet specific customer requirements. The video BW is configurable to optimize system noise and speed requirements. Customization of rise, fall and recovery times of pulse responses are also available. Video output source resistance is also configurable to match common transmission line impedances. The DC power requirements for these products are only modestly higher than lower frequency 6 to 18 GHz SDLVAs with similar dynamic range. Finally, matched sets with log slopes < 2 dB unit-to-unit are also available upon request for sets of four units or more.

Endwave’s ALC log amplifiers are typically hermetically sealed using a laser weld process at the manufacturing facility. Products are thoroughly screened to precipitate infant mortality and latent defect failures. Environmental screening and reliability programs are available to facilitate compliance with specific program requirements.

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