Ultra‐wideband slot antenna with a stop‐band notch

Ojaroudi, Nasser; Ojaroudi, Mohammad

doi:10.1049/iet-map.2013.0027

Cited by 9 publications

(9 citation statements)

References 17 publications

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“…In UWB communication systems, one of key issues is the design of a compact antenna while providing wideband characteristic over the whole operating band. Consequently, a number of microstrip antennas with different geometries have been experimentally characterized .…”

Section: Introductionmentioning

confidence: 99%

Compact ultra-wideband monopole antenna with enhanced bandwidth and dual band-stop properties

Ojaroudi

2014

Int J RF and Microwave Comp Aid Eng

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In this manuscript, a new design of ultra-wideband (UWB) monopole antenna with dual band-stop performance is proposed. The configuration of the antenna consists of a pair of coupled U-ring structures as a radiating patch, and a modified ground plane with inverted T-shaped strip and a pair of T-shaped conductor-backed plane. In the presented structure, by using an inverted T-shaped strip and also by embedding a pair of T-shaped parasitic structures in the ground plane, additional resonances at the higher band are excited which provides a wide usable fractional bandwidth of more than 135%. In order to generate single and dual band-notched characteristics, we convert the square radiating to the pair of coupled U-ring structures. The measured results reveal that the presented dual band-notched monopole antenna design exhibits an operating bandwidth (VSWR < 2) form 2.81 GHz to 15.12 GHz with two notched bands, covering the 5.2/5.8 GHz, 3.5/5.5 GHz, 4 GHz to suppress interferences from wireless local area network (WLAN), worldwide interoperability microwave access (WiMAX), and C-band systems, respectively. Good return loss, antenna gain, and radiation pattern characteristics are obtained in the frequency band of interest. The configuration of the proposed monopole antenna is simple, easy to fabricate, and can be integrated into any UWB system. V C 2014 Wiley Periodicals, Inc.Int J RF and Microwave CAE 25:346-357, 2015.

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Section: Introductionmentioning

confidence: 99%

Compact ultra-wideband monopole antenna with enhanced bandwidth and dual band-stop properties

Ojaroudi

2014

Int J RF and Microwave Comp Aid Eng

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“…Figure 4 illustrates the measured radiation patterns, including the copolarization in the H-plane (xz plane) and E-plane (yz plane). It can be seen that the radiation patterns in xz plane are nearly omnidirectional for the two frequencies [15]. Figure 5 shows the measured maximum gain of the proposed antenna for the 1.7 and 2.3 GHz frequencies.…”

Section: Resultsmentioning

confidence: 96%

Dual‐band CPW‐fed slot antenna for LTE and WiBro applications

Ojaroudi

Ghadimi

2014

Micro & Optical Tech Letters

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In this article, we present a dual-band coplanar waveguide-fed slot antenna for 1.7/2.3 GHz long term evolution and wireless broadband frequencies. The proposed antenna is fabricated on an FR4 substrate with dielectric constant of 4.4. By cutting a pair of rotated T-shaped slits in the circular radiating stub, a new resonance at the lower frequencies is generated, and also by embedding a meanderline slit in the ground plane a good dual-band operation antenna can be achieved. The measured impedance bandwidth for 10 dB return loss is from 1.57 to 1.73 GHz (13%) and 2.21 to 2.38 GHz (10.0%), covering the 1.7/2.3 GHz for the dual-band wireless operations. Simulated and experimental results obtained for this antenna show that the proposed slot antenna has a good antenna gain and radiation behavior.ABSTRACT: Two mixers using a "surface-volume" hybrid integration approach and a "surface" integration approach are designed and fabricated. Their performances are compared with different measurement Figure 5 Measured maximum gain for the proposed slot antenna. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com]

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“…It is better to use an antenna that provides required frequency notches instead of integrating the designed antenna with separate filter circuit to eliminate the interfering frequency bands. Several notch creation processes were proposed earlier that include insertion of slot, implanting split ring resonators (SRR), addition of electronic band gap structures, and loading diverse parasitic elements on the antenna . Creation of frequency notch band by embedding slots in the radiating element or ground plane is one the simplest and conventional method due to its simple geometry and easy fabrication.…”

Section: Introductionmentioning

confidence: 99%

Leaf‐shaped CPW‐fed UWB antenna with triple notch bands for ground penetrating radar applications

Kundu

Jana

2018

Micro & Optical Tech Letters

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A compact (38.31 mm × 34.52 mm × 0.8 mm) leaf shaped CPW fed ultra‐wideband antenna is proposed. The antenna gives wide impedance bandwidth from 2.58 GHz to 11.62 GHz with sharp triple notch bands (3.28 GHz–3.82 GHz, 5.12 GHz–5.4 GHz, and 5.7 GHz–6 GHz) to eliminate interference from co‐existing IEEE 802.16 WiMAX (3.3 GHz–3.8 GHz), IEEE 802.11y (3.65 GHz–3.69 GHz), IEEE 802.11a WLAN (5.15 GHz–5.35 GHz and 5.725 GHz–5.825 GHz), and IEEE 802.11p DSRC (5.85 GHz–5.925 GHz) bands. The antenna provides minimal gain variation (2–5 dBi), flat group delay response and non‐varying transfer function with high average efficiency of 88% in the pass band. Significant drop in gain and efficiency, nonlinearity in transfer function, and high variation in group delay are observed at notch bands. Antenna VSWR, and efficiency are measured in close proximity of sand, wood, and glass. Satisfactory results ensure its ability to work as Ground penetrating radar antenna.

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Ultra‐wideband slot antenna with a stop‐band notch

Cited by 9 publications

References 17 publications

Compact ultra-wideband monopole antenna with enhanced bandwidth and dual band-stop properties

Compact ultra-wideband monopole antenna with enhanced bandwidth and dual band-stop properties

Dual‐band CPW‐fed slot antenna for LTE and WiBro applications

Leaf‐shaped CPW‐fed UWB antenna with triple notch bands for ground penetrating radar applications

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