Abstract: 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.

Abstract: 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.

Abstract: An article of footwear including a sole, an upper, and a device for reversibly tightening the upper, the upper including an envelope and a reinforcement which at least partially covers the envelope, the reinforcement including at least one lateral branch and at least one medial branch, each branch extending transversely from a proximal end located by at the sole to a distal end, the tightening device including at least one lateral linking point and at least one medial linking point, each secured to the upper, and a mechanism for biasing the connection points in a direction to reversible tighten the upper. The envelope is flexible, at least one connection point is located on a branch of the reinforcement, and at least one branch is adhesively bonded to the envelope for at least part of its length.

Abstract: An article of footwear including a sole, an upper, and a device for reversibly tightening the upper, the upper including an envelope and a reinforcement which at least partially covers the envelope, the reinforcement including at least one lateral branch and at least one medial branch, each branch extending transversely from a proximal end located by at the sole to a distal end, the tightening device including at least one lateral linking point and at least one medial linking point, each secured to the upper, and a mechanism for biasing the connection points in a direction to reversible tighten the upper. The envelope is flexible, at least one connection point is located on a branch of the reinforcement, and at least one branch is adhesively bonded to the envelope for at least part of its length.

Abstract: 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.

Abstract: 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.