This chapter will consider the design of linear PAs for the 1.6- to 30-MHz range at power levels up to 1000 W. Only linear operation will be covered, as it is commonly used in most SSB transmitters. It also forms the basis of the more sophisticated applications covered in Chapter 13. The normal HF range, usually considered as 3.0 and 30 MHz, has been extended over recent years to the top of the AM broadcast band at 1600 kHz. This is a result of increased military and maritime usage, coupled with advances in solid-state technology.

Chapter Contents:

• 12.1 A Typical Solid-State HF PA
• 12.2 Design Considerations of an Amplifier Stage
• 12.3 Miscellaneous PA Circuits and Functions
• 12.4 Power-Combining Techniques
• References

Inspec keywords: power amplifiers; HF amplifiers

Other keywords: SSB transmitters; AM broadcast band; maritime usage; solid-state power amplifiers; frequency 1.6 MHz to 30 MHz; HF range; military usage; linear power amplifiers

Subjects: Amplifiers