Compact Integrated Bluetooth UWB Antenna with Quadruple Bandnotched Characteristics

Abstract

In this paper,a compact printed dualband antenna for Bluetooth and UWB applications with WiMax(3.3-3.7 GHz), C-band satellite downlink(3.7-4.2GHz), WLAN(5.15-5.825GHz) and DSRC(5.5-5.925GHz) bandnotched characteristics is proposed and investigated. By etching two half-wavelength L-shaped slots in the radiating patch and an inverted U-shaped slot in the microstrip feedline quadruple bandnotched characteristics is obtained. Further, by embedding quarter wavelength parasitic strip at two edges of U-shaped radiating patch dualband characteristics with desired bandwidth is obtained. the proposed antenna is designed and fabricated on a FR4 substrate of dimensions 24mm X 35mm that operates over a 2.4-11GHz with S11<-10dB except over notch bands of 3.3-3.7GHz, 3.7-4.2GHz,5.15-5.625GHz and 5.625-6GHz. Directional pattern in E-plane and nearly omnidirectional pattern in H-plane are observed over a UWB band except at desired bandnotched freqencies. Less variation in group delay and pulse deformation shows good time domain characteristics. In addition, the structure exhibits stable gain over the desired band.

A Compact Wide Band Mimo Antenna With Quadruple Notches in Uwb

“…Diversity gain determines the transmission power loss when diversity schemes are executed on the element for the MIMO arrangement. It is obtained by means of Equation (8). Fig.…”

“…The benefits of any printed UWB antenna are ascribed to its small profile, easy fabrication, light weight, being economical, and omnidirectional radiation patterns [4,5]. On the other hand, several bands for many wireless communication systems coexist over the frequency spectrum of UWB, i.e., satellite communication 7.5 GHz for downlink, Wireless LAN at 5.8 GHz [6,7], C-band at 4 GHz for downlink [8], and WiMAX 3.2 GHz [9] which uses the same band as UWB systems. These bands may interfere with the UWB Systems.…”

Discrete interferences optimum beamformer in correlated signal and interfering noise

“…By combining the interference-noising covariance matrix and the adaptive beamformer, a reconstruction based on steering vector estimation can be obtained. These also do not require general restrictions on steering vectors [31], [32].…”

Sunflower shaped fractal filtenna for WLAN and ARN application

“…One such component is Antenna which has been explored exhaustively and employed in various medical and defense applications . The monopole antenna due to its advantages of omnidirectional radiation pattern, small size, low cost, and light weight, is extensively used in UWB communication systems . However, the performance of the UWB system is reduced due to interference caused by narrow band technology such as HyperLAN, WLAN, and WiMAX etc .…”