A compact flower slotted dual band notched ultrawideband antenna integrated with Ku band for ultrawideband, medical, direct broadcast service, and fixed satellite service applications

Abstract

A compact flower slotted antenna (FSA) for dual band eliminated ultrawideband (UWB) integrated with Ku band applications is proposed. The basic FSA with modified ground structure is utilized for obtaining fractional bandwidth of 137% (3.45-18.45 GHz). The dual band eliminated frequencies are achieved by a via hole to eliminate 5.39 to 5.90 GHz (upper WLAN band) frequencies and by utilizing symmetrical inverted L-shaped parasitic elements to notch 7.30 to 7.75 GHz (downlink of X-band satellite communication link) frequencies. The FSA is having a compact size of 16 × 22 mm 2 printed on low cost FR-4 substrate with two band notched characteristics, nearly omnidirectional radiation characteristics and stable gain over UWB frequency range makes it suitable for portable UWB systems.

Uwb Monopole Antenna With Dual Notched Bands Verified by Characteristic Mode Analysis (Cma)

“…For the intended dual band notched UWB radiator, the gain fluctuates from 2.94 dBi to 4.82 dBi with an average gain of 3.07 dBi and abruptly falls to −5.23 dBi and −8.25 dBi at notch frequencies of 3.3 and 5.33 GHz, respectively. The abrupt change of gain at 3.3 GHz and 5.33 GHz confirms that the proposed antenna effectively eliminates the interference [22] due to WiMAX and WLAN bands, respectively. Similarly, the abrupt changes in radiation efficiencies of 40.23% and 28.23% are noticed at 3.3 GHz and 5.33 GHz to notch WiMAX and WLAN bands, respectively, as shown in Figure 7(d).…”

High Gain of UWB Planar Antenna Utilising FSS Reflector for UWB Applications

“…The drawback of this kind of antenna is that omnidirectional emission leads to high interference and energy loss in unwanted directions, meaning that the main lobe of the radiation pattern is low. Moreover, the back lobe radiation is high and capable of affecting the surrounding environment changes [7][8][9][10][11][12]. Therefore, under these circumstances, the directional radiation is more favoured as it guarantees more sensible use of the radiated power, which can be explained through a deep analysis related to Effective Isotropic Radiated Power (EIRP) [13].…”

A Compact Novel SE-DGS Tapered-Fed Notched UWB Antenna Integrated with Ku/K band for Breast Cancer Detection

“…Meena M. L. et al [15] reported a semi-circular, floral-structured UWB antenna integrated with multiband wireless applications operating from 4-18 GHz with a dimension of 30×30 mm 2 . In [16], a compact (16×22 mm 2 ) flower-slotted UWB antenna integrated with the Ku band for DBS and FSS applications is described, covering an impedance bandwidth of 3.45-18.45 GHz with WLAN, and the downlink of X-bands is notched by a via and L-shaped parasitic elements, respectively. A compact (20×20 mm 2 ) eplison-structured UWB antenna is reported to cover 10.4-30 GHz bandwidth with a peak efficiency of 90.8% and a fractional bandwidth (FBW) of 97% is reported [17].…”

“…The majority of printed-circuit UWB antenna designs are reported in the 3-10 GHz span, with very few designs persisting to cover higher frequencies such as the 3-30 GHz band, with promising applications in medical, air-bone intercept, radar, missile systems, and short-range tracking systems. The Ku band (12)(13)(14)(15)(16)(17)(18) is used for high resolution tracking and tracking the satellite within the bandwidths of approximately 12.87-14.43 GHz and the vehicular radar band (22)(23)(24)(25)(26)(27)(28)(29) [12]. As wireless system tools develop and use higher frequency ranges to provide higher data transfer, a UWB antenna with a frequency range far beyond the FCC-authorized band is required to monitor and enforce various standard compliances, such as EIRP, immunity tests, and interferences.…”

“…As wireless system tools develop and use higher frequency ranges to provide higher data transfer, a UWB antenna with a frequency range far beyond the FCC-authorized band is required to monitor and enforce various standard compliances, such as EIRP, immunity tests, and interferences. In addition, high frequency bands including X, Ku, and K band applications have been integrated with the UWB band [13][14][15][16][17][18][19]. Mishra B et al [13] have proposed an antenna for UWB that is 20 x 20 mm 2 .…”