PARIS — Cobham Aerospace Communications will add up to 25 percent new staff to its waveguide production facilities in Britain and France to meet demand from manufacturer Astrium Satellites as part of a contract valued at up to $21.8 million over 18 months, Cobham announced July 16.

Chichester, England-based Cobham said the waveguides will operate on Astrium-built telecommunications satellites in the Ka-, Ku-, C- and X-band radio frequencies for a variety of telecommunications, direct-to-home television and broadband satellites.

Under the contract, valued at up to 14 million British pounds ($21.8 million) over 18 months, Cobham will add production staff to its sites at Chichester and Les Clayes-sous-Bois, France. The agreement with Astrium Satellites includes an option for an extension into 2014, Cobham said.

Peter B. de Selding was the Paris bureau chief for SpaceNews.