Trapped wave ultra-wide band antenna with triangular groove

Abstract

The invention relates to an ultra-wide band antenna and discloses the trapped wave ultra wideband antenna with a triangular groove. The invention provides the trapped wave ultra-wide band antenna with the triangular groove, the trapped wave ultra-wide band antenna is smaller in size, wider in bandwidth, lower in return loss, higher in gain and radiation efficiency and simple in structure and has the characteristic of omnidirectional radiation and the function of trapped wave, the ultra-wide band antenna is provided with a base plate; an inverted ladder-shaped oscillator body with the triangular groove and a micro-strip line are printed on the front of the base plate; a triangular conductor belt and a three-step ladder-shaped grounding surface are printed on the back surface of the base plate; the upper edge of the inverted ladder-shaped oscillator body is level with the upper edge of the base plate; the triangular groove is arranged in the inverted ladder-shaped oscillator body; the bottom edge of the inverted ladder-shaped oscillator body is connected with the micro-strip line; the micro-strip line extends to the lower edge of the base plate; the lower end of the back of the base plate is provided with the three-step ladder-shaped grounding surface; a gap is arranged between the grounding surface and the inverted ladder-shaped oscillator body; the upper end of the back of the base plate is provided with the triangular conductor belt; and the vertex of the triangular conductor belt is located at the middle point of the upper edge of the back of the base plate.

Description

technical field [0001] The invention relates to an ultra-wideband antenna, in particular to an ultra-wideband antenna in which a trapezoidal dipole body is slotted and a notch unit is added. Background technique [0002] Ultra-wideband (UWB) wireless communication is a short-distance large-capacity wireless communication method, which realizes ultra-wideband and high-speed data transmission within a short distance. For ultra-wideband communication applications, new technical requirements are also put forward for antenna design. Generally, UWB antennas should have the characteristics of ultra-wideband, stable radiation mode gain, consistent group delay, and high radiation efficiency. Transformation is the current development direction of UWB antennas. [0003] The US Federal Communications Commission (FCC) specifies the 3.1-10.6GHz frequency band for UWB communication. However, the 5.15GHz-5.85GHz frequency band overlaps with WLAN and HIPERLAN / 2, which will seriously affect...

AI Technical Summary

Problems solved by technology

Krittaya Chawanonphithak in 2007 (Krittaya Chawanonphithak, C. Phongcharoenpanich. 5.8GHz Notched UWB Bidirectional Elliptical Ring Antenna Excited by Circular Monopole with Curved Slot[C]. Microwave Conference, 2007. APMC 2007. Asia-Pacific, 2007: 1-4) The method of slotting and adding parasitic units is to open a non-closed ring on the disc printed monopole ultra-wide antenna, and add a ring around the disc as a parasitic unit. Good suppression, and the suppression frequency band is accurate, but the size of the antenna does not meet the requirements of miniaturization due to the large ring parasitic unit

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