This book chapter presents the intermediate frequency filters that are used in SSB receivers and exciters to shape the desired signal spectrum and to reduce the unwanted signals. The following topics are highlighted: passband and stopband characteristics; filter arrangements; filter types: LC filter, mechanical filter, crystal filters, and SAW filter; and envelope delay distortion.

Chapter Contents:

• 6.1 Passband and Stopband Characteristics
• 6.2 Filter Arrangements
• 6.3 Filter Types
• 6.4 lntermodulation Distortion
• 6.5 Envelope Delay Distortion
• References

Inspec keywords: analogue circuits; surface acoustic wave filters; band-pass filters; band-stop filters; LC circuits

Other keywords: LC filter; IF analog filter; mechanical filter; SSB receiver; envelope delay distortion; SSB exciter; crystal filter; filter arrangement; passband characteristics; intermediate frequency filter; SAW filter; stopband characteristics; signal spectrum; unwanted signal

Subjects: Acoustic wave devices; Passive filters and other passive networks; Analogue circuit design, modelling and testing