Macdonald, Dettwiler and Associates Corporation

Ems Technologies Cawada, Ltd.

Sylvain Richard

Stéphane Lamoureux

Steve Larouche

Gerard Senechal

Jaroslaw Uher

Andre Bouvrette

Geoffrey Moss

François Bussieres

John McDougall

A TEM-line network architecture for RF components used in antenna system, includes an electrically conductive main body forming an outer conductor defining a signal channel, and an electrically conductive center conductor electrically grounded to the main body at predetermined locations. The center conductor is electromagnetically isolated from the outer conductor at RF frequencies while being connected and supported within the signal channel only at at least one of the predetermined locations. The outer conductor is preferably formed of three layers with the center conductor being integral with one of the layers.

Compact and lightweight TEM-line network for RF components of antenna systems

A helical antenna has a helix supported by a helix support. The helix support includes at least one piece of flexible sheet having its two surfaces covered with a layer antistatic material. The flexible sheet is curlable into a revolution surface configuration to form a revolution surface-shaped support section for at least partially supporting a portion of the helix component there around. A grounding mechanism electrically grounds the external sheet surface to the helix and the two sheet surfaces to one another when in the revolution surface configuration while a locking mechanism locks the flexible sheet in the revolution surface configuration. The combination of the helix and the flexible support renders the antenna structurally relatively rigid in all directions.

Helical antenna

Growing community of inventors

Kirkland, Canada

Sylvain Richard