A Novel Hammer-Shaped UWB Antenna with Triple Notched-Band for Rejecting RLS, WLAN and XSCS bands

Mewara, H. S.; Jhanwar, Deepak; Sharma, M. M.; Deegwal, Jitendra Kumar

doi:10.7716/aem.v6i4.527

Cited by 7 publications

(1 citation statement)

References 12 publications

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“…The mutual coupling, S 21 , between two band notched U-structured slots is depicted in Figure 10. Form controlled independently for the proposed radiator [14]. Thus, to suppress interference from C-band and WLAN band more strongly, the thickness of upper inverted U-structure slot is U T = 0.3 mm, and lower inverted U-structured slot is L T = 0.5 mm.…”

Section: Uwb Antenna With Wlan Eliminated Bandmentioning

confidence: 99%

A Novel Compact Tri Band Notched Uwb Monopole Antenna

Devana¹,

Rao²

2020

PIER M

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A novel compact (20×22 mm 2 ) triple band eliminated monopole antenna for ultra-wideband (UWB) applications is presented. A novel radiating patch with reduced ground plane is utilized for achieving a −10 dB impedance bandwidth of 3. 28-13.28 GHz. An upper inverted U-shaped slot is introduced into the radiating patch to notch C-band (3.68-4.19 GHz), and a lower inverted U-structured slot is utilized to eliminate WLAN band (5.18-5.82 GHz) interference. The interference due to down link of X-band (7.27-7.87 GHz) is rejected by via hole connected between patch and rectangular strip printed above the defected ground structure. The proposed antenna has nearly stable radiation patterns, and realized gain over UWB frequency range makes it suitable for recent portable wireless communication applications. INTRODUCTIONIn 2002, the Federal Communications Commission (FCC) assigned an unlicensed UWB band from 3.1-10.6 GHz for commercial wireless applications. Recently, various types of Printed Monopole Antennas (PMA) are manufactured for high speed, low profile, short range, and wide bandwidth wireless technologies. Many monopole antennas have been reported to obtain UWB bandwidth; however, systems like 5G [1] (3.3-3.7 GHz), Worldwide Interoperability for Microwave Access, WiMAX [2] (3.3-3.6 GHz), C-band [3] (3.7-4.2 GHz), Wireless Local Area Networks, WLAN [4] (5.15-5.825 GHz), down link of X-band satellite communication systems [5] (7.25-7.75 GHz) may cause electromagnetic interference (EMI) with UWB systems. To suppress EMI, discrete band-stop filters are used with UWB antennas; however, it is complex and costly. In [6], an H-structured slot is etched into a mapleleaf shaped radiator to eliminate 5-6.0 GHz frequency band signals. Three semicircular slots into a radiator are etched to reject 5. 15-5.825 and 7.25-7.75 GHz bands. A T-structured parasitic element is introduced to notch 4.9-6.1 GHz signals in [7]. In [8], a complementary split ring resonator notches 5-6 GHz frequencies. Moreover, the UWB radiators are designed with single, double, and multiple notched bands [9][10][11][12]. To design an effective UWB radiator with compact size and reduced mutual coupling between band eliminated elements, the proposed antenna is designed.In this article, a novel UWB radiator is etched with two inverted U-structured slots and a via hole to eliminate C, WLAN, and downlink of X bands, respectively. The simulated and measured results of S 11 , constant realized gain, surface current distribution and nearly stable radiation patterns of proposed antenna are observed over 3.28-13.28 GHz bandwidth. In the following sections, the design procedure and parametric study of proposed antenna are observed. ANTENNA DESIGN AND DISCUSSIONThe proposed radiator with microstrip feed is depicted in Figure 1, and the optimized dimensions are given in Table 1. The proposed antenna is printed on an FR-4 substrate with r = 4.4 along with a 50 Ω with a microstrip line of dimension W F × (L F 1 + L F 2 ).

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Section: Uwb Antenna With Wlan Eliminated Bandmentioning

confidence: 99%