UWB elliptical patch monopole antenna with dual-band notched characteristics

Abstract

<p class="Default">In this paper, a new approach to the design of an UWB monopole antenna with dual band-notched characteristics is presented. The antenna has the form of an elliptical monopole over a ground plane having an elliptical slot to achieve the UWB. The dual-band notch function is created by inserting a U-shaped and a C-shaped slots on the radiating patch, thus no extra size is needed. The proposed antenna shows a good omnidirectional radiation pattern across the band from 3.2 to more than 14 GHz. The dual band-rejection is for 4.88-5.79GHz centered at 5.4GHz and 7.21-8.46 GHz centered at 7.8 GHz. The antenna prototype using the FR-4 substrate with ε<sub>r</sub>=4.3 has a compact size of 25mm×25 mm ×1.45mm. The fabricated prototype showed experimental results comparable to those obtained from the simulations.</p>

A miniaturized printed UWB antenna with dual notching for X-b and and aeronautical radio navigation applications

“…The second notch band (8.6-9.4 GHz) can be used to prevent interference from aeronautical radio navigation (8.7-9.2 GHz). The proposed antenna supports the UWB application band in a compact size and with higher gain compared to the notched band UWB antennas reported in [20][21][22][23][24][25][26][27][28][29][30][31][32][33]. The advantages of the proposed antenna are compact dimension, improved gain, good impedance matching, suitability for wideband communication systems, and multi-band filtering capability to eliminate the interference of existing communication systems (X-band downlink and aeronautical radio navigation) with the UWB systems.…”

“…The characteristic performance comparisons of the suggested antenna with other reported antenna structures [20][21][22][23][24][25][26][27][28][29][30][31][32][33] in respect of dimension, gain and utilization of notch bands are shown in Table 4. A clear conclusion can be drawn from the table that the majority of the recently reported antennas have been designed to provide notch mechanisms for Wi-MAX and WLAN bands.…”

“…So, the researchers of antenna community have expressed intensive interest on designing UWB antennas with band rejection capabilities to remove undesired interference from existing narrowband wireless systems such as worldwide interoperability for microwave access (Wi-MAX) from 3.3 to 3.9 GHz, wireless local area network (WLAN) from 5.15 to 5.825 GHz and X-band satellite communication from 7.25 to 8.4 GHz (downlink: 7.25-7.745 GHz, uplink: 7.9-8.4 GHz) which creates interference with UWB system. Different methods for incorporating band-notched features in wideband antennas have been introduced, involving parasitic resonator [20], a combination of slot loaded patch and coplanar waveguide (CPW) feeding [21], elliptical radiator with slot loaded ground plane [22], shared radiator [23], stub loading [24], etching overlapped U shaped and C-shaped slot [25], maple leaf-shaped monopole [26], a combination of M-shaped slot and C-shaped strip [27], electromagnetic band gap (EBG) resonator [28], CPW fed split ring resonator [29], crossed shaped slot-loading [30], tapered radiating element [31], strip loading [32], fractal monopole with trapezoidal rings [33], and split ring resonator [34]. But many of the reported UWB antennas (except [31]) were designed to create notch function for WLAN and/or Wi-MAX application bands.…”

“…This paper is also associated with the design and realization of monopole microstrip UWB antenna with band rejection features and the model intended is distinct from the methods reported in the literature [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. We aim is to create dual notch bands to suppress the interference of X band (downlink) and aeronautical navigation (AN) with the UWB systems.…”

Twelfth mode on-demand band notch UWB antenna for underlay cognitive radio

“…Merits like low power consumption, wide impedance bandwidth, constant gain, jamming immunity and higher capacity [1] combined with the wide range of applications including imaging systems, target localization and automotive applications [2], [3] lead ultra-wideband (UWB) systems to pick an increasing interest in the world of wireless communications since its declaration by Federal Communications Commission (FCC) in 2002 [4]. Unfortunately, many wireless technologies are coexist within the range 3.1-10.6 GHz that is allocated for UWB.…”