Design and Performance of a 3.4 to 4.6 GHz Active Equalizer with Controlled Gain Slope

• We present the design and performance of a low-noise tuneable active equalizer (AEQ) intended to compensate frequency dependent losses in the coaxial cable. The equalizer achieves 11 dB gain with a typical noise figure of 2.2 dB and has a slope of 3.5 dB within the 3.4-4.6 GHz band. The possibility to tune the AEQ gain-slope and hence obtain accurate flatness inside the pass-band is provided by two PIN diodes as voltage controlled resistors. The slope can be varied by +/- 0.7 dB without disturbing slope-linearity.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

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equalizer

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