Quad notch UWB antenna using combination of slots and split‐ring resonator

Abstract

A novel coplanar waveguide fed UWB antenna with quad notch band characteristics has been proposed in this work. The antenna layout is designed based on a combination of well-known geometrical shapes: a half ellipse patch, rectangle, and triangle. The shape of the ground plane is partially tapered rectangular. The overall dimension of the antenna is 41.5 × 32 mm. The antenna uses three U-shaped slots at the top surface to create three notched band characteristics. A split-ring resonator is then introduced at the bottom surface of the antenna. With the integration of split-ring resonator at the bottom surface, an additional notch band at 7.25 to 7.75 (6.7%) GHz is created in the antenna. The designed antenna has an operating impedance bandwidth (VSWR ≤2) ranges from 3.03 to 12.34 GHz except in quad frequency stop bands of 3.3 to 3.7 (11.4%), 5.15 to 5.35 (3.8%), 5.725 to 5.825 (1.7%), and 7.25 to 7.75 (6.7%) GHz. The proposed antennas are successfully designed, prototyped, and measured. The simulated and measured results are extensively studied and discussed. Correlation between the time-domain transmitting antenna input signal and the received antenna output signal is calculated in order to ensure that the proposed antenna can be used in pulse-communication systems. This antenna finds applications in medical imaging, military radar systems, and other common UWB applications. K E Y W O R D SCPW-fed, quad notch, UWB

A miniaturized microstrip antenna with tunable double band-notched characteristics for UWB applications

“…Many reported related antennas(i.e. 23 , 24 , etc.) have achieved band-notched characteristics by introducing multiple resonator structures and etching multiple slots.…”

“…In recent years, a lot of UWB antennas with band-notched characteristics have been investigated in detail using various design methods 19 – 34 . The notched characteristics with UWB antennas can be achieved by etching various shaped slot on the radiating patch or ground plane 19 – 23 , 27 , 34 , incorporation of electric resonator resonator(ERR) 24 , split ring resonators(SRRs) 23 , 25 , 30 , 33 or complimentary-split-ring-resonators(CSRRs) 26 , using parasitic elements 27 – 30 and EBG resonators 20 , 31 , 32 , etc. However, it is not always convenient or efficient to control the notched frequency bands of UWB antenna by changing its shape or adding addition resonator structures.…”

A Compact UWB Monopole Antenna with Triple Band Notches

“…Among them, one such method is to add parasitic elements [ 13 ], stubs [ 14 ], and resonating structures on or near the radiator [ 15 , 16 ]. Meanwhile, another approach is to etch differently shaped slots in the radiating element or the ground plane [ 17 , 18 , 19 , 20 ]. The methods mentioned above can be employed to suppress single or multi-band phenomena, and the selectivity of the rejection bands depends on the effectiveness of the incorporated techniques.…”

A miniaturized microstrip antenna with tunable double band-notched characteristics for UWB applications

“…In recent years, a lot of UWB antennas with band-notched characteristics have been investigated in detail using various design methods [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. The notched characteristics with UWB antennas can be achieved by etching various shaped slot on the radiating patch or ground plane [19-23, 27,34], incorporation of electric resonator resonator(ERR) [24], split ring resonators(SRRs) [23,25,30,33] or complimentary-split-ring-resonators(CSRRs) [26], using parasitic elements [27][28][29][30] and EBG resonators [20,[31][32], etc. However, It is not always convenient or efficient to control the notched frequency bands of UWB antenna by changing its shape or adding addition resonator structures.…”