BIQUAD ANTENNA, WHICH IS STRUCTURALLY COMBINED WITH A COAXIAL CABLE

摘要

The antenna structure is designed so that the antena transmitting area line segments (1), which are folded and form the right full rhombus and half of the left lower rhombus are connected at points "a" and "c" with a wire-coaxial cable (2), that forms the second, upper half of the left rhombus. The antena's inputs (3) are conected respectively: the first - at the connection point "a" of the line segment (1) with the wire-cable (2) , the second - at the bending point "b" of the antenna wire (1). Further the coxial cable-wire (2) at the connection point "c" with the line segment (1) is bent at a 90 degree angle and forms the antenna mounting leg with the reflector (4). At the other end of the cable (behind the reflector) a connector (5) is added. The offered biquad antenna, which is structurally combined with a coaxial cable, improves the antenna and signal cable coupling efficiency in the GHz frequency range. Using such antenna in ultra-wideband radar systems improves the object detection resolution, but in ultra-wideband transmission systems extends the maximum data rate limit.