EMC Technology has introduced an entire line of new surface mount chip and coaxial equalisers designed to compensate for frequency variations in RF and microwave subsystems. These equalisers are available in versions for fixed frequency response and temperature variable frequency response. In addition, the company can develop custom variations specific to the frequency band and temperature slope characteristics of a customer's application. All equalisers are available with both negative and positive slope coefficients.
The 3,3 mm² CE chip equaliser offers linear broadband fixed slope frequency compensation from 2 to 18 GHz in 1 to 4 dB values. EMC also offers the TVE, a temperature variable equaliser in the same package size in various compensation and temperature coefficients from 2 to 18 GHz and a temperature range from -55 to +125°C.
The CE and TVE chip equalisers are also available in a coaxial body with an SMA plug to SMA jack interface and frequency compensation from 2 to 8 GHz. They use an all-passive construction designed specifically to offset amplitude variations, which result from mismatched discrete components, materials and signal channel effects. These equalisers have an internally matched network, offering an advantage over other varieties of frequency equalisers that use a pass-through element only, resulting in poor VSWR and non-linear variations. Active element frequency response equalisers drift over time and react with radiation effects. The all-passive design eliminates these effects, offering high reliability and stable response over the life of the devices and making them ideal for military and space applications.
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