Miniaturized CPW-FED UWB antenna with dual frequency rejection bands using stepped impedance stub and arc-shaped parasitic element

Li, Yingsong; Li, Weihua; Mittra, R.

doi:10.1002/mop.28228

Cited by 18 publications

(8 citation statements)

References 13 publications

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“…It transmits data by using nonsinusoidal narrow pulses at nanosecond to microsecond. In recent years, UWB communication technology has attracted wide attention due to its outstanding advantages such as high transmission rate, large channel capacity, good concealment, precise positioning, strong anti-multipath fading, low hardware cost, and low power consumption [1][2][3][4]. Especially since the Federal Communications Commission (FCC) approved the unlicensed allocation of the 3.1-10.6 GHz frequency band to commercial UWB wireless communication systems in 2002, a wave of researches on ultra-wideband communication technology has been triggered.…”

Section: Introductionmentioning

confidence: 99%

Uniplanar Uwb-Mimo Antenna With High Isolation Based on a Radiator-Ground Shared Structure

Tang¹,

Liu²,

Zhong³

et al. 2020

PIER Letters

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This letter presents a uniplanar two-port UWB-MIMO antenna with high isolation for wireless communication applications. The designed antenna is composed of a single metal layer and a thin substrate. The single metal layer acts as radiators and a ground plane. The radiator of each element consists of a modified dual-L-shaped feeding structure and a defected rectangular patch, which is shared by the ground plane. The modified dual-L-shaped feeding structure is introduced to broaden the bandwidth. Furthermore, two fork-shaped slots and bent slots are embedded in the rectangular shared structure for further improving the bandwidth and decreasing the mutual couplings without any other additional decoupling structures. The experimental results show that the proposed antenna achieves the ultra-wide impedance bandwidth (3.0-12.4 GHz), high isolation (> 20 dB at entire impedance bandwidth), very small ECC (< 0.01), high multiplexing efficiency (> −1.9 dB), stable realized gain, and radiation patterns. Therefore, the designed antenna is suitable for most wireless UWB communication applications.

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Section: Introductionmentioning

confidence: 99%

Uniplanar Uwb-Mimo Antenna With High Isolation Based on a Radiator-Ground Shared Structure

Tang¹,

Liu²,

Zhong³

et al. 2020

PIER Letters

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show abstract

“…To overcome such interferences, UWB antennas with notches in the mentioned frequencies are required. In [9][10][11][12][13][14][15][16][17][18][19], several UWB antennas with notch band characteristics are presented that employs EBG and defected structures for rejecting application. Moreover, as WLAN is more prone to interference in comparison with WiMAX and X-band, so single-band/dual-band selectivity for WiMAX and Xband can be very useful [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

A novel compact fractal UWB antenna with triple reconfigurable notch reject bands applications

Nazeri

Falahati

Edwards

2019

AEU - International Journal of Electronics and Communications

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A compact, circular UWB fractal antenna with triple reconfigurable notch rejection bands is proposed. It rejects the crowded frequency bands WiMAX, WLAN and X band interferences produced in UWB communication systems. The proposed fractal structure consists of a basic circular patch with circular fractal iterations. By employing this new structure of fractals, the overall size of antenna is reduced 53% to 21x25 mm, in comparison with traditional circular monopole antenna. The implemented antenna operates at 3.1-10 GHz. Reconfigurability is realized by designing slots and split ring resonators in desired frequencies with the attached PIN diodes. WLAN band rejection was realized by creating a pair of optimized L-shaped slots in the ground plane. By etching a split ring resonator and a U-shaped slot, X and WiMAX bands were also rejected. Furthermore, by attaching diodes to aforementioned slots and designating the diodes on/off, different bands can be included or rejected. In time domain, the antenna properties are evaluated by a figure of merit called fidelity factor. Finally, the antenna properties are measured in anechoic chamber and the results agrees with simulation findings.

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“…Recently, some antennas have been reported in which dual band notch functions are incorporated . Two stub resonators are used to produce each notch characteristics .…”

Section: Introductionmentioning

confidence: 99%

“…Dual notched band characteristics is achieved by using π‐shaped slot and EBG resonator . Dual notch band characteristics is incorporated in the designed antenna by using L‐shaped thin ground plane and rectangular vertical I‐shaped slot in radiating patch and by using stepped impedance stub . Triple notch band characteristics is incorporated in the designed antenna using C‐shaped slot, pair of complimentary split‐ring resonator slot, and L‐shaped slit in the ground plane .…”

Section: Introductionmentioning

confidence: 99%

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

Chakraborty

Pal

Chattoraj

2019

Int J RF Microw Comput Aided Eng

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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

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Miniaturized CPW-FED UWB antenna with dual frequency rejection bands using stepped impedance stub and arc-shaped parasitic element

Cited by 18 publications

References 13 publications

Uniplanar Uwb-Mimo Antenna With High Isolation Based on a Radiator-Ground Shared Structure

Uniplanar Uwb-Mimo Antenna With High Isolation Based on a Radiator-Ground Shared Structure

A novel compact fractal UWB antenna with triple reconfigurable notch reject bands applications

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

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