Planar UWB antenna with modified slotted ground plane

Abstract

A compact coplanar waveguide-fed (CPW) monopole antenna for ultra-wideband wireless communication is presented. The proposed antenna comprises of a CPW-fed beveled rectangular patch with a modified slotted ground. The overall size of the antenna is 30 mm  27 mm  1.6 mm. The lower edge of the band is attained by properly decoupling the resonant frequencies due to the extended ground plane and the beveled rectangular patch of the antenna. The upper edge of the radiating band is enhanced by beveling the ground plane corners near the feed point. Experimental results show that the designed antenna operates in the 2.7-12 GHz band, for S 11 À10 dB with a gain of 2.7-5 dBi. Both the frequency domain and time domain characteristics of the antenna are investigated using antenna transfer function. It is observed that the antenna exhibits identical radiation patterns and reasonable transient characteristics over the entire operating band. V C 2012 Wiley Periodicals, Inc. Int J RF and Microwave CAE 22:594-602, 2012.

An ultra‐wideband surface wave antenna with reduced ground plane effects

“…Measured group delay variation of the antenna is less than 0.7 ns over the whole UWB frequency band. Table 1 compares the performance of present antenna with other UWB monopole antennas 1‐11,13,14,16‐21 . Refs.…”

“…Since then, various antennas are developed for different UWB applications. Among these, the planar UWB monopole antennas 1‐13 become most popular because of their attractive features like low profile, planar nature and flexibility to integrate with other microwave circuit components. However, radiation from such UWB antennas are from both the radiator and the ground plane.…”

Broadband planar dipole array Antenna with double C-shaped slit elements for digital TV broadcasting transmission

“…In , a low profile and wideband antenna was introduced a distributed LC circuit to E‐shaped with a wide bandwidth of 9%. In , a pair of coupled U‐ring structures, a modified ground plane achieve wide bandwidth of more than 135% and in , a CPW‐fed beveled rectangular patch with a modified slotted ground. Nonetheless, the antenna designs in are based on dielectric substrates without accounting for the dielectric loss and thereby inappropriate for high power rating applications, especially for TV broadcasting base stations.…”

A Novel CPW-Fed UWB Antenna with Band-Stop Function

“…From [1][2][3][4][5][6], the CPW technology is used, and it reaches 17-18 GHz bandwidth and relatively compact size. Some different geometries antennas with narrow bandwidth are presented in [7][8][9][10][11][12]. In [7], a CPW-fed compact UWB microstrip antenna with inverted L-shaped technique is presented, which operates at 2.6 GHz−13.04 GHz, and its dimension is 25 × 25 × 1.6 mm 3 .…”

“…A planar UWB antenna with a band-notch characteristic is obtained from 3 GHz to 13 GHz on 28 × 30 mm 2 in [8]. In [9] it has a dimension of 30 × 27 × 1.6 mm 3 and operates at frequencies of 2.7 GHz-12 GHz with modified slotted ground plane. In [10], the UWB antenna has a big size of 88 × 97 mm 2 and operates at frequencies of 3 GHz-10 GHz with full ground plane.…”