Compact UWB Filtering-Antenna with Controllable WLAN Band Rejection Using Defected Microstrip Structure

Alhegazi, Ammar; Zakaria, Zahriladha; Shairi, N. A.; Salleh, Azahari; Ahmed, Sharif

doi:10.13164/re.2018.0110

Cited by 19 publications

(14 citation statements)

References 28 publications

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“…The advantages of Defected Ground Structures (DGS) and filter characteristics of different DGSs, viz., dumbbell, u-slot, v-slot, fractal DGS, and spiral DGS, are covered in [8]. U-slot in feed and H-slot in radiating patch [9,10] cause band rejection characteristics. A Sierpinski fractal based UWB antenna is discussed in [11].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Compact Reconfigurable Dual Band Notched Uwb Antenna

Mayuri¹,

Rani²,

Subrahmanyam³

et al. 2020

PIER C

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In this paper, a dual notch Ultra Wideband (UWB) monopole antenna with compact dimensions of 37.8 × 27.1 × 1.6 mm 3 is presented. Octagon patch with a defected ground structure is used to attain the wide frequency range of 3.17 GHz-11.61 GHz with ultra-wide impedance bandwidth of 8.33 GHz. The band notch characteristics in WiMAX (3.2 GHz-3.67 GHz) and WLAN (4.32 GHz-5.81 GHz) bands are achieved using inverted pi-slot in the radiating element and a pair of double split ring resonators (DSRRs) on either sides of the feed, respectively. Reconfigurability in the bands is obtained by using BAR64-03W pin diodes switching at the appropriate placement in the antenna structure. The proposed antenna exhibits efficiency of 88% in operating and 20% in nonoperating frequencies. The proposed antenna is designed, simulated, and optimized using HFSS 19 electromagnetic tool. The measured results are tested using combinational analyzer in a chamber with antenna measurement setup for validation and found in good matching with simulation.

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Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Compact Reconfigurable Dual Band Notched Uwb Antenna

Mayuri¹,

Rani²,

Subrahmanyam³

et al. 2020

PIER C

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“…Leaky wave antenna (LWA) is a promising candidate for these developing applications because of its advantages, such as wide bandwidth, low profile, easy fabrication, capability of beam scanning, and narrow beamwidth. LWAs are preferable for use in satellite communication, multipoint communication, and automotive radars [3][4][5][6][7]. In a radar system, most of the applications require a wide bandwidth to reach a continuous wide beam scanning.…”

Section: Introductionmentioning

confidence: 99%

Enhancement Bandwidth of Half Width-Microstrip Leaky Wave Antenna Using Circular Slots

Mohsen¹,

Isa²,

Isa³

et al. 2019

PIER C

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This paper presents a new technique to enhance impedance bandwidth of single layer half width microstrip leaky wave antenna (HW-MLWA) with continuous main beam scanning. The enhancement is realized by etching four circular slots on the radiation element. Two of the circular slots are placed close to the feed port, and the others are close to the matching load. The wide main beam scanning is between +12 • and +70 • when operation frequency sweeps between 4.3 GHz and 6.5 GHz. A comparison between the Uniform HW-MLWA (reference) and the proposed HW-MLWA with circular slots is provided to study the effectiveness of the added circular slots. The proposed HW-MLWA is fabricated and tested. The measured impedance bandwidth is 49.9% (4.28 GHz to 7.13 GHz) with peak gain 10.31 dBi at 5 GHz, hence the proposed antenna can be considered as a suitable candidate for C-band applications.

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“…The design allows to dynamically change the characteristics and size of the large-cell. The microstrip line contains (24) equally spaced unit control cells of each element with a space separation between cells (g1) of 4.6 mm.…”

Section: Antenna Configurationmentioning

confidence: 99%

“…As the beam points get nearer to the foresight, the efficiency of a MLWA's radiation is high. The radiation efficiency lowers as the beam move towards the endfire [23][24][25]. Conversely, as the beam scans the same range at 4.3 GHz, the reconfigurable HW-MLWA's radiation efficiency lowers by only 4.4%-from 94.6% to 90.2%.…”

Section: Figure 2 Propagation Of Leaky Wave In Hw-mlwamentioning

confidence: 99%

Radiation beam scanning for leaky wave antenna by using slots

et al. 2020

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This paper provides an insight of a new, microstrip leaky wave antenna. It holds the ability to continue steer its beam at a swapping frequency. This is done with acceptable impedance matching while scanning and very little gain variation. Investigation is carried out on LWAs' control radiation pattern in steps at a band frequency via vertical and horizontal slots. The enhancement is realized by etching horizontal and vertical slots on the radiation element. This study also presents a novel half-width microstrip leaky wave antenna (LWA). The antenna is made up of the following basic structures group's vertical and horizontal slots. The reactance profile at the microstrip's free edge and thus the main beam direction is changed once the control-cell states are changed. The radiation pattern direction changes by sweeping the operating frequency between 4 GHz to 6 GHz.The main beam may be directed by the antenna between 15 o and 55 o. C band achieved the measured peak gain of the antenna of 10 dBi at 4.3 GHz beam scanning range.

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Compact UWB Filtering-Antenna with Controllable WLAN Band Rejection Using Defected Microstrip Structure

Cited by 19 publications

References 28 publications

Design and Analysis of a Compact Reconfigurable Dual Band Notched Uwb Antenna

Design and Analysis of a Compact Reconfigurable Dual Band Notched Uwb Antenna

Enhancement Bandwidth of Half Width-Microstrip Leaky Wave Antenna Using Circular Slots

Radiation beam scanning for leaky wave antenna by using slots

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