Compact planar monopole UWB antenna with band‐notched characteristic

Abstract

A novel compact ultra‐wideband antenna with band‐notched function is proposed and implemented. The radiating patch consists of a binomial function edge and is fed by coplanar waveguide. The size of the UWB antenna is minimized to 30 × 27.4 mm2. A new type of π‐shaped slot is embedded to obtain the band‐notched characteristic in the 5 GHz WLAN band. The center frequency of the notched band can be varied from 5.2 to 5.8 GHz by properly selecting the parameter values. The measured results are in good agreement with the simulated ones. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2656–2658, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23717

Ultra-Wideband Antenna and Design

“…By inserting a V-shaped thin slot with a length of λc/4 (λc is the wavelength of notched frequency) on the hexagonal radiating element, the narrow frequency band-notched is created, where the fractional bandwidth is approximately 8~10%. Chung et al [64][65][66] introduced the printed UWB monopole antenna by inserting an inverted U-shaped, Π-shaped or rectangular slot. At the notched frequency, current is concentrated around the edges of the slot and is oppositely directed between the interior and the notched frequency.…”

“…Figure 26. Notched-band designs with various slots on patch or ground [63][64][65][66][67][68][69] . Figure 27.…”

STUDY OF ELLPITICAL SLOT UWB ANTENNAS WITH A 5.0--6.0 GHz BAND-NOTCH CAPABILITY

“…To avoid potential interference with existing wireless systems, a filter with band rejection characteristics is connected to the UWB antenna to achieve a notch function at the interfering frequency band. Recently, many UWB antennas with different bandstop filter designs have been widely discussed [7][8][9][10].…”

“…Gao et al [8] used a parasitic slots in the defected ground to stop radiation at the same frequency. A pi-shaped [9] or arc-shaped slot [10] in the radiating element have been used to obtain a band stop filter around the frequency of 5.8 GHz. Hong et al [11] introduced a hybrid technique for having band notch ability by using a complex parasitic element in the radiator and a modified defected ground to obtain the band rejection in the middle of UWB range.…”

A NOVEL MAPLE-LEAF SHAPED UWB ANTENNA WITH A 5.0-6.0 GHz BAND-NOTCH CHARACTERISTIC

“…It requires an antenna of small size, wide impedance bandwidth of 3.1-10.6 GHz, omni-directional radiation patterns, and stable gain. Various types of planar UWB antennas have been developed for UWB applications [2][3][4][5][6][7][8][9][10]. However, there are several narrowband communication systems operating below 10 GHz and may cause interference with UWB systems such as wireless local area network (WLAN) systems operating at 5.15-5.825 GHz frequency band.…”