Study on a Miniature Uwb Wafer-Dipole Printed Antenna Fed by Balanced Micro-Strip Line

Abstract

Abstract-A novel wafer-dipole printed antenna fed by balanced microstrip line is proposed, and the adoption of the balanced microstrip line can effectively solve the feeding problem of the UWB dipole antenna. The wafer-dipole and a branch of the balanced microstrip line are printed on one side of FR-4 substrate (1 mm thickness), and the later is connected to a wafer directly, while the other branch is printed on the back side and connected to the other wafer with a via-hole. The measured results show that the antenna impedance bandwidth is from 3.0 GHz to 15.0 GHz with VSWR < 2, and the ratio bandwidth is about 5 : 1. Moreover, the antenna size is just 40 mm × 20 mm with simple structure, which is well suited for short-distance UWB communications.

A Miniaturized UWB Dipole Antenna Design by using Fractal Geometry

“…Among all these dipole structure has high impedance which results into perfect impedance matching and stable radiation pattern.UWB system is discovered with distinct shapes of dipole antenna structures like diamond, Planar teardrop, Elliptical, Shorted C shape arm, Slot loaded elliptical, Trapezoidal patch dipole, Rounded bow tie, Rectangular patch dipole, Sierpinskized Koch-like, sided multifractal dipole antenna. [2][3][4][5][6][7][8][9][10][11]. Miniaturization of antenna structure is another major challenge for wideband operating range.…”

Rotated Quadrilateral Dipole Uwb Antenna for Wireless Communication

“…Other dipole structures, such as rectangular, elliptical, and trapezoidal dipoles, are reported for UWB applications [8][9][10]. The circular wafer dipole antenna has enhanced bandwidth to cover partially Ku-band along with full coverage of C-and X-bands [11]. Some nonconventional optimized geometries have also been proposed in literature [12].…”

Fractal dipole antenna for UWB applications

“…Various dipole structures like diamond dipole, stepped fat dipole, planar teardrop, elliptical dipole, shorted C shape arms dipole, trimmed elliptical dipole, slot loaded elliptical dipole, Sierpinskized Koch‐like sided multifractal dipole antenna, trapezoidal patch dipole, wafer dipole, rounded bow tie, curved edge dipole, rectangular patch dipole, and so forth. are already reported for UWB applications. It is reported that in case of coaxial fed dipoles, the absence of inbuilt balun causes excitation of undesirable resonances and squinting of radiation patterns.…”