High Gain and Low Cross-Polar Compact Printed Elliptical Monopole Uwb Antenna Loaded With Partial Ground and Parasitic Patches

Abstract

Abstract-In this paper a low cost, high gain, low cross-polar and compact edge feed printed elliptical antenna with a partial ground plane and parasitic patches is proposed and investigated. The proposed antenna is fabricated on a 1.6 mm thick FR4 substrate with dielectric constant of 4.4 and loss tangent of 0.025. The total planar area of the proposed antenna (L × W ) is 28 × 24 mm 2 . Both the simulated and experimental result shows that the proposed antenna provides a frequency range compatible with the ultra-wideband (UWB) standard, i.e., 3.5 GHz-12 GHz frequency band. The radiation pattern produced by the proposed antenna is approximately omnidirectional with inphase excitation of Surface waves resulting in less cross-polarization level (less than 20 dB) compared to its co-polar component for the entire impedance band width. The maximum measured gain for the fabricated antenna is around 6.27 dBi with an average efficiency of above 90% throughout the bandwidth. A linear phase response (phase of S 21 ) accompanied by a constant group delay of 1 ns throughout the measured bandwidth makes the proposed antenna a good candidate for UWB applications.

Compact Planar Uwb Antenna With Band Notch Characteristics for Wlan and DSRC

“…Several microstrip line-fed and coplanar waveguide-fed antennas have been reported for UWB applications. These antennas use the monopole configuration, such as square, ring, elliptical, triangle, pentagon, and hexagonal antennas, and the dipole configuration such as rectangular and bow-tie antennas [1][2][3][4][5][6][7][8][9]. Some of these UWB antennas did not have planar structures (i.e., their ground planes are perpendicular to the radiators) and are not suitable to be integrated with the printed circuit boards.…”

Modal analysis and design a planar elliptical shaped UWB antenna with triple band notch characteristics

“…For UWB systems, printed monopole antenna with various designs have been studied which meet the frequency range specified for UWB communication [2][3][4][5][6][7]. Printed monopole antenna designs with enhanced bandwidths for multiple wireless systems have been proposed recently.…”

A novel UWB rectangular slot disk monopole antenna with band‐notch characteristics

“…Numerous designs with different shapes of slots and slits [4] are explained in the literature which produces enhanced BWs. There has been an increasing interest in the applications of defected ground structure (DGS) in microwave and millimeter wave applications [5]. DGS is realized by etching a defected pattern in the ground plane and this etched pattern interfered with the shield current distribution in the ground plane which affects the characteristics of the antenna.…”