Abstract
The Communications Satellite network in Japan is the principal means of transmitting emergency news, live programs, and other content. NHK has been developing satellite news gathering (SNG) equipment to achieve more stable operations, and has now developed a compact, outdoor solid state power amplifier (SSPA) for Ku-band satellite communications. It is believed to be the smallest SSPA of its kind in the world in the 80 W operating-power class and features a semi-integrated architecture with separable power-supply and amplifier components that each comply with International Air Transport Association (IATA) regulations. This improves mobility enabling the SSPA to be transported quickly to any location for SNG. NHK expects the introduction of solid-state amplifier devices to contribute significantly to stable satellite transmission compared to conventional TWT power amplifiers. This paper provides an overview of the newly-developed compact outdoor SSPA and reports on satellite transmission testing using this equipment.
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