AML's Product Line

AML's Equalizer Amplifier Series

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AML's integrated gain equalizers compensate for monotonic system gain variation. Equalizers are narrow or wide band lossy passive circuits, of negative slope, positive slope or of parabolic type attenuation. A positive slope equalizer provides a specified loss at the low frequency end and a minimal loss at the high end. Most equalizing circuits are of transmission line type using low-Q resonators. Fixed slope equalization can vary from 3dB/octave to more than 12 dB/octave, although other slope gradients can also be achieved. The parabolic type presents low attenuation at the ends of the amplifier frequency bandwidth, and large attenuation in the middle of the band, or a portion of the band. Most equalizers are designed to cover multi octaves, for example 2 to 18 GHz. For narrow band amplifiers an active gain equalizer with slope adjustment can be implemented, varying the bias of a PIN diode in the low-Q resonators. However, the technique provides small increments of linear slope adjustments, due to the limited range of the diode intrinsic resistance.

Please contact AML for all your Microwave Amplifier and Integrated Microwave Assembly inquiries. For more information, email us at sales@amlj.com or call us at 805-388-1345.