San Jose, Calif. Endwave Corp. has released a series of millimeter-wave successive detection log video amplifiers (SDLVAs) as part of its expanding product line from the acquisition of ALC Microwave. These products are suitable for 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 18-40 GHz bandwidth:
- 18-26 GHz: ASDA-81826
- 26-40 GHz: ASDA-82640
- 18-40 GHz: ASDA-81840
These products are derivatives of ALC's legacy 18-40 GHz DLVAs, but offer improved sensitivity and increased dynamic range in this advanced SDLVA architecture. These ALC log amplifiers are also said to offer excellent pulse accuracy and stable thermal performance from -45° to +85°C.
Typical performance for the full-band 18-40 GHz SDLVA (P/N: ASDA-81840) include the following:
- 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, said Endwave. 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 6-18 GHz SDLVAs with similar dynamic range. Matched sets with log slopes <2 dB unit-to-unit are also available on request for sets of four units or more.
The ALC log amplifiers are typically hermetically sealed using a laser weld process at the manufacturing facility. Products are screened to precipitate infant mortality and latent defect failures. Environmental screening and reliability programs are available to facilitate compliance with specific program requirements.
Endwave Company, 1-916-941-9477, www.endwave.com