Patent ID: 9007271
Filing Date: 2015-04-14
Classification: H01Q

Abstract:
1. A foldable log-periodic antenna comprising: a feed line; transmitting means for transmitting or receiving electromagnetic signals; two supporting elements for holding the transmitting means; means for producing a tensile stress on the transmitting means, wherein one of the transmitting means is connected to both of the two supporting elements via respective spring elements, and the one of the transmitting means is connected to the feed line, wherein one of the supporting elements is connected to the feed line via an articulated joint apparatus, such that the antenna is moveable from a transport position to an operating position and vice versa, wherein the means for producing a tensile stress on the transmitting means are a flexible tube, and can have an internal pressure applied to them and are connected to the supporting elements to hold the transmitting means, and wherein the two supporting elements, the feed line, and the flexible tube are connected to each other at a common connection point.