Compact Dual Band-Notched Printed Monopole Antenna for UWB Application

A Novel Reconfigurable Uwb Filtering-Antenna With Dual Sharp Band Notches Using Double Split Ring Resonators

“…Furthermore, the new integration using DSRR can filter out upper and lower WLAN frequency bands (5.15-5.35 GHz and 5.7-5.8 GHz) at the same time where ls 1 = 10.1 mm and ls 2 = 7.2 mm, whereas most recently published dual band notches UWB antennas in Table 1 Figure 6 shows the surface current distribution at the band notches frequencies. It can be seen that the current is more concentrated on the DSRR and flows in opposite directions with the same amounts which cancel each other and leads to high attenuation, thus the antenna does not radiate, and therefore band notch is created [24].…”

“…Three U-slots were defected on a fractal patch to produce dual band notches have been applied in [22]. Some others used defected ground structure (DGS) [23,24]. Another technique is using resonator structures beside the feedline of the antenna [25].…”

Uwb Antenna With Reconfigurable Triple Band Notched Characteristics for Cognitive Radio

“…The technique of etching slots on the antenna structure with different shapes like U, E, T etc. are reported to achieve the band rejection [10][11][12]. This technique gives better performance if the effective slot length and slot position are parametrically optimised.…”

Design and Optimization of Integrated Bluetooth and UWB Antenna With Dual Band-Notched Functions

“…Therefore, the UWB antenna with band rejection characteristics is required to avoid possible interference between UWB and narrow bands like WiMAX and WLAN. Several types of monopole antennas have been proposed for UWB and band-notched applications [2][3][4][5][6][7][8]. A recently reported antenna has been designed by etching a rectangle slot in the CPW ground [2], by embedding a parasitic strip inside the polygon slot and an isolated slit employed in the bevelled T-stub [3], and use the two L-shaped quarterwaveguide resonators coupled to the ground plane with two shorting tracks at the sides of the antenna [8] to get the single band-notched characteristic.…”

“…A recently reported antenna has been designed by etching a rectangle slot in the CPW ground [2], by embedding a parasitic strip inside the polygon slot and an isolated slit employed in the bevelled T-stub [3], and use the two L-shaped quarterwaveguide resonators coupled to the ground plane with two shorting tracks at the sides of the antenna [8] to get the single band-notched characteristic. In [4], the dual notched bands were formed by embedding a pair of г-shaped stubs in the radiation patch and a modified G-slot defected ground structure in the feeding line. Nowadays, the Bluetooth covering the 2.4-2.484 GHz band is widely used in portable devices and essential to integrate multiple bands for use in one device.…”